<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Crossfire XBRL Enabler by Rivet Software version 3.6.4037.19442-->
<!--Based on XBRL 2.1-->
<!--Created on: 2/16/2011 2:13:37 PM-->
<!--Modified on: 2/16/2011 2:13:37 PM-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" targetNamespace="http://www.nscorp.com/2010-12-31" xmlns:nsc="http://www.nscorp.com/2010-12-31" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:us-types="http://xbrl.us/us-types/2009-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedStatementsOfIncome" id="StatementConsolidatedStatementsOfIncome">
        <link:definition>00100 - Statement - Consolidated Statements of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedBalanceSheets" id="StatementConsolidatedBalanceSheets">
        <link:definition>00200 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedBalanceSheetsParenthetical" id="StatementConsolidatedBalanceSheetsParenthetical">
        <link:definition>00210 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedStatementsOfCashFlows" id="StatementConsolidatedStatementsOfCashFlows">
        <link:definition>00300 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherIncomeNet" id="DisclosureOtherIncomeNet">
        <link:definition>10201 - Disclosure - Other Income - Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>10301 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureFairValue" id="DisclosureFairValue">
        <link:definition>10401 - Disclosure - Fair Value</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureInvestments" id="DisclosureInvestments">
        <link:definition>10501 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureLeaseCommitments" id="DisclosureLeaseCommitments">
        <link:definition>10901 - Disclosure - Lease Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherLiabilities" id="DisclosureOtherLiabilities">
        <link:definition>11001 - Disclosure - Other Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefits" id="DisclosurePensionsAndOtherPostretirementBenefits">
        <link:definition>11101 - Disclosure - Pensions and Other Postretirement Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockBasedCompensation" id="DisclosureStockBasedCompensation">
        <link:definition>11201 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockRepurchaseProgram" id="DisclosureStockRepurchaseProgram">
        <link:definition>11401 - Disclosure - Stock Repurchase Program</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureEarningsPerShare" id="DisclosureEarningsPerShare">
        <link:definition>11501 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureCommitmentsAndContingencies" id="DisclosureCommitmentsAndContingencies">
        <link:definition>11701 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureFairValueTables" id="DisclosureFairValueTables">
        <link:definition>30403 - Disclosure - Fair Value (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureInvestmentsTables" id="DisclosureInvestmentsTables">
        <link:definition>30503 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureEarningsPerShareTables" id="DisclosureEarningsPerShareTables">
        <link:definition>31503 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherIncomeNetDetails" id="DisclosureOtherIncomeNetDetails">
        <link:definition>40204 - Disclosure - Other Income - Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureIncomeTaxesDetails" id="DisclosureIncomeTaxesDetails">
        <link:definition>40304 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureFairValueDetails" id="DisclosureFairValueDetails">
        <link:definition>40404 - Disclosure - Fair Value (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureInvestmentsParentheticalDetails" id="DisclosureInvestmentsParentheticalDetails">
        <link:definition>40514 - Disclosure - Investments (Parenthetical) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePropertiesDetails" id="DisclosurePropertiesDetails">
        <link:definition>40604 - Disclosure - Properties (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureCurrentLiabilitiesDetails" id="DisclosureCurrentLiabilitiesDetails">
        <link:definition>40704 - Disclosure - Current Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDebtNarrativeDetails" id="DisclosureDebtNarrativeDetails">
        <link:definition>40804 - Disclosure - Debt (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDebtTablesDetails" id="DisclosureDebtTablesDetails">
        <link:definition>40814 - Disclosure - Debt (Tables) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureLeaseCommitmentsDetails" id="DisclosureLeaseCommitmentsDetails">
        <link:definition>40904 - Disclosure - Lease Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherLiabilitiesDetails" id="DisclosureOtherLiabilitiesDetails">
        <link:definition>41004 - Disclosure - Other Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsNarrativeDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsNarrativeDetails">
        <link:definition>41104 - Disclosure - Pensions and Other Postretirement Benefits (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitCostComponentsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitCostComponentsDetails">
        <link:definition>41124 - Disclosure - Pensions and Other Postretirement Benefits (Pension and other postretirement benefit cost components) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsPensionPlanWeightedAverageAssetAllocationsByAssetCategoryDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsPensionPlanWeightedAverageAssetAllocationsByAssetCategoryDetails">
        <link:definition>41164 - Disclosure - Pensions and Other Postretirement Benefits (Pension plan weighted-average asset allocations by asset category) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockholdersEquityDetails" id="DisclosureStockholdersEquityDetails">
        <link:definition>41304 - Disclosure - Stockholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockRepurchaseProgramDetails" id="DisclosureStockRepurchaseProgramDetails">
        <link:definition>41404 - Disclosure - Stock Repurchase Program (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureEarningsPerShareDetails" id="DisclosureEarningsPerShareDetails">
        <link:definition>41504 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureCommitmentsAndContingenciesDetails" id="DisclosureCommitmentsAndContingenciesDetails">
        <link:definition>41704 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>00090 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedStatementsOfChangesInStockholdersEquity" id="StatementConsolidatedStatementsOfChangesInStockholdersEquity">
        <link:definition>00400 - Statement - Consolidated Statements of Changes in Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/StatementConsolidatedStatementsOfChangesInStockholdersEquityParenthetical" id="StatementConsolidatedStatementsOfChangesInStockholdersEquityParenthetical">
        <link:definition>00410 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureSummaryOfSignificantAccountingPolicies" id="DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>10101 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureProperties" id="DisclosureProperties">
        <link:definition>10601 - Disclosure - Properties</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureCurrentLiabilities" id="DisclosureCurrentLiabilities">
        <link:definition>10701 - Disclosure - Current Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDebt" id="DisclosureDebt">
        <link:definition>10801 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockholdersEquity" id="DisclosureStockholdersEquity">
        <link:definition>11301 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDerivativeFinancialInstruments" id="DisclosureDerivativeFinancialInstruments">
        <link:definition>11601 - Disclosure - Derivative Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureQuarterlyFinancialDataUnaudited" id="DisclosureQuarterlyFinancialDataUnaudited">
        <link:definition>11801 - Disclosure - Quarterly Financial Data (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureValuationAndQualifyingAccounts" id="DisclosureValuationAndQualifyingAccounts">
        <link:definition>11901 - Disclosure - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies" id="DisclosureSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>20102 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherIncomeNetTables" id="DisclosureOtherIncomeNetTables">
        <link:definition>30203 - Disclosure - Other Income - Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureIncomeTaxesTables" id="DisclosureIncomeTaxesTables">
        <link:definition>30303 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePropertiesTables" id="DisclosurePropertiesTables">
        <link:definition>30603 - Disclosure - Properties (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureCurrentLiabilitiesTables" id="DisclosureCurrentLiabilitiesTables">
        <link:definition>30703 - Disclosure - Current Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDebtTables" id="DisclosureDebtTables">
        <link:definition>30803 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureLeaseCommitmentsTables" id="DisclosureLeaseCommitmentsTables">
        <link:definition>30903 - Disclosure - Lease Commitments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureOtherLiabilitiesTables" id="DisclosureOtherLiabilitiesTables">
        <link:definition>31003 - Disclosure - Other Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsTables" id="DisclosurePensionsAndOtherPostretirementBenefitsTables">
        <link:definition>31103 - Disclosure - Pensions and Other Postretirement Benefits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockBasedCompensationTables" id="DisclosureStockBasedCompensationTables">
        <link:definition>31203 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockholdersEquityTables" id="DisclosureStockholdersEquityTables">
        <link:definition>31303 - Disclosure - Stockholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureQuarterlyFinancialDataUnauditedTables" id="DisclosureQuarterlyFinancialDataUnauditedTables">
        <link:definition>31803 - Disclosure - Quarterly Financial Data (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureValuationAndQualifyingAccountsTables" id="DisclosureValuationAndQualifyingAccountsTables">
        <link:definition>31903 - Disclosure - Valuation and Qualifying Accounts (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails" id="DisclosureSummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>40104 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureInvestmentsDetails" id="DisclosureInvestmentsDetails">
        <link:definition>40504 - Disclosure - Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitObligationsAndPlanAssetsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitObligationsAndPlanAssetsDetails">
        <link:definition>41114 - Disclosure - Pensions and Other Postretirement Benefits (Pension and other postretirement benefit obligations and plan assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsOtherChangesInPlanAssetsAndBenefitObligationsRecognizedInOtherComprehensiveLossDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsOtherChangesInPlanAssetsAndBenefitObligationsRecognizedInOtherComprehensiveLossDetails">
        <link:definition>41134 - Disclosure - Pensions and Other Postretirement Benefits (Other changes in plan assets and benefit obligations recognized in other comprehensive loss) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitAssumptionsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsPensionAndOtherPostretirementBenefitAssumptionsDetails">
        <link:definition>41144 - Disclosure - Pensions and Other Postretirement Benefits (Pension and other postretirement benefit assumptions) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsHealthCareCostTrendAssumptionsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsHealthCareCostTrendAssumptionsDetails">
        <link:definition>41154 - Disclosure - Pensions and Other Postretirement Benefits (Health care cost trend assumptions) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsFairValueOfPlanAssetsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsFairValueOfPlanAssetsDetails">
        <link:definition>41174 - Disclosure - Pensions and Other Postretirement Benefits (Fair value of plan assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosurePensionsAndOtherPostretirementBenefitsEstimatedFutureBenefitPaymentsDetails" id="DisclosurePensionsAndOtherPostretirementBenefitsEstimatedFutureBenefitPaymentsDetails">
        <link:definition>41184 - Disclosure - Pensions and Other Postretirement Benefits (Estimated future benefit payments) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureStockBasedCompensationDetails" id="DisclosureStockBasedCompensationDetails">
        <link:definition>41204 - Disclosure - Stock-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureDerivativeFinancialInstrumentsDetails" id="DisclosureDerivativeFinancialInstrumentsDetails">
        <link:definition>41604 - Disclosure - Derivative Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureQuarterlyFinancialDataUnauditedDetails" id="DisclosureQuarterlyFinancialDataUnauditedDetails">
        <link:definition>41804 - Disclosure - Quarterly Financial Data (Unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.nscorp.com/role/DisclosureValuationAndQualifyingAccountsDetails" id="DisclosureValuationAndQualifyingAccountsDetails">
        <link:definition>41904 - Disclosure - Valuation and Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="nsc-20101231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="nsc-20101231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="nsc-20101231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="nsc-20101231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.us/us-roles/2009-01-31" schemaLocation="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-roles-2009-01-31.xsd" />
  <import namespace="http://xbrl.us/us-gaap/negated/2008-03-31" schemaLocation="http://www.xbrl.org/lrr/role/negated-2008-03-31.xsd" />
  <import namespace="http://xbrl.us/us-types/2009-01-31" schemaLocation="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-types-2009-01-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://xbrl.us/us-gaap/2009-01-31" schemaLocation="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd" />
  <import namespace="http://xbrl.us/dei/2009-01-31" schemaLocation="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd" />
  <import namespace="http://xbrl.us/invest/2009-01-31" schemaLocation="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/invest-2009-01-31.xsd" />
  <element id="nsc_PurchasedServicesAndRents" name="PurchasedServicesAndRents" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_MaterialsAndOther" name="MaterialsAndOther" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_IncomeBeforeIncomeTaxes" name="IncomeBeforeIncomeTaxes" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_MaterialsAndSupplies" name="MaterialsAndSupplies" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_IncreaseDecreaseInMaterialsAndSupplies" name="IncreaseDecreaseInMaterialsAndSupplies" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_OtherNet" name="OtherNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SupplementalDisclosureOfCashFlowInformation" name="SupplementalDisclosureOfCashFlowInformation" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_ConsolidatedStatementsOfChangesInStockholdersEquityParentheticalAbstract" name="ConsolidatedStatementsOfChangesInStockholdersEquityParentheticalAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_StockRepurchaseProgram" name="StockRepurchaseProgram" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockBasedCompensationUnaudditedAbstract" name="StockBasedCompensationUnaudditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_ConsolidatedBalanceSheetsUnauditedAbstract" name="ConsolidatedBalanceSheetsUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_ConsolidatedBalanceSheetsUnauditedParentheticalAbstract" name="ConsolidatedBalanceSheetsUnauditedParentheticalAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_IncomeTaxesUnauditedAbstract" name="IncomeTaxesUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_OtherLiabilitiesUnauditedAbstract" name="OtherLiabilitiesUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_CommitmentsAndContingenciesUnauditedAbstract" name="CommitmentsAndContingenciesUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_CurrentLiabilitiesUnauditedAbstract" name="CurrentLiabilitiesUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_DerivativeFinancialInstrumentsUnauditedAbstract" name="DerivativeFinancialInstrumentsUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_OtherIncomeNetUnauditedAbstract" name="OtherIncomeNetUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_PropertiesUnauditedAbstract" name="PropertiesUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_LeaseCommitmentsUnauditedAbstract" name="LeaseCommitmentsUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_StockRepurchaseProgramUnauditedAbstract" name="StockRepurchaseProgramUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_FairValueUnauditedAbstract" name="FairValueUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_PensionsAndOtherPostretirementBenefitsUnauditedAbstract" name="PensionsAndOtherPostretirementBenefitsUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_DebtUnauditedAbstract" name="DebtUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCostExcludingTaxEffect" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCostExcludingTaxEffect" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardTaxEffect" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardTaxEffect" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_IncentiveAwardGrantPrice" name="IncentiveAwardGrantPrice" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RestrictedStockUnitRestrictionPeriod" name="RestrictedStockUnitRestrictionPeriod" nillable="true" type="xbrli:normalizedStringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedVolatilityRate" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedVolatilityRate" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsAreNotPaid" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsAreNotPaid" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockOptionGrantPrice" name="StockOptionGrantPrice" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PsuMember" name="PsuMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RsuMember" name="RsuMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TsopMember" name="TsopMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_LtipMember" name="LtipMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PerformanceShareUnitsPaidInCash" name="PerformanceShareUnitsPaidInCash" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OptionsWithExercisePricesAboveAverageMarketPrice" name="OptionsWithExercisePricesAboveAverageMarketPrice" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AuthorityToIssueDebtEquitySecurities" name="AuthorityToIssueDebtEquitySecurities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_ScheduleOfDefinedBenefitPlansDisclosuresTableTextBlock" name="ScheduleOfDefinedBenefitPlansDisclosuresTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionBenefitsMember" name="PensionBenefitsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OpebMember" name="OpebMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockRepurchaseProgramNewShareAuthorization" name="StockRepurchaseProgramNewShareAuthorization" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_AdditionalCashContributionsToPanAmSouthernLlc" name="AdditionalCashContributionsToPanAmSouthernLlc" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_CashAndPropertyContributionsToPanAmSouthernLlc" name="CashAndPropertyContributionsToPanAmSouthernLlc" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_DueToConrail" name="DueToConrail" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_IncomeLossFromEquityInConrail" name="IncomeLossFromEquityInConrail" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_IncomeLossEquityInConrail" name="IncomeLossEquityInConrail" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PanAmSouthernLlcMember" name="PanAmSouthernLlcMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ConrailVotingMember" name="ConrailVotingMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ConrailEquityMember" name="ConrailEquityMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FinancialInstrumentsOwnedAtFairValueTextBlock" name="FinancialInstrumentsOwnedAtFairValueTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AvailableforsalesecuritiesNetUnrealizedHoldingGainLossNetOfTax" name="AvailableforsalesecuritiesNetUnrealizedHoldingGainLossNetOfTax" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SelfInsuredForPropertyOwnedAbove" name="SelfInsuredForPropertyOwnedAbove" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SelfInsuredForPropertyOwnedUpTo" name="SelfInsuredForPropertyOwnedUpTo" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_EnvironmentalReponsiblePartyInConjunctionWithOtherParties" name="EnvironmentalReponsiblePartyInConjunctionWithOtherParties" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_EnvironmentalLocationsRepresentativeSampleLiability" name="EnvironmentalLocationsRepresentativeSampleLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_EnvironmentalLocationsRepresentativeSample" name="EnvironmentalLocationsRepresentativeSample" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_EnvironmentalCleanupLocations" name="EnvironmentalCleanupLocations" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ContestedPortionOfArbitration" name="ContestedPortionOfArbitration" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_OptionGrantFairValueAssumptionsMethodUsedTextBlock" name="OptionGrantFairValueAssumptionsMethodUsedTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_MedicarePartD" name="MedicarePartD" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ProceedsFromStockOptionsExercisedExcludingTaxEffect" name="ProceedsFromStockOptionsExercisedExcludingTaxEffect" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_EnvironmentalLocationsRepresentativeSampleLiabilityPeriod" name="EnvironmentalLocationsRepresentativeSampleLiabilityPeriod" nillable="true" type="us-types:durationStringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_NewStockRepurchaseProgram" name="NewStockRepurchaseProgram" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_ExpensesForUseOfSharedAssetsArea" name="ExpensesForUseOfSharedAssetsArea" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_AccountsReceivableSecuritizationBalance" name="AccountsReceivableSecuritizationBalance" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_AvailableForSaleCertificatesOfDepositMaturityDate" name="AvailableForSaleCertificatesOfDepositMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AvailableForSaleCorporateBondMaturityDate" name="AvailableForSaleCorporateBondMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_HeldToMaturityCorporateBondsMaturityDate" name="HeldToMaturityCorporateBondsMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_HeldToMaturityFederalGovernmentBondMaturityDate" name="HeldToMaturityFederalGovernmentBondMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockBasedCompensationUnauditedAbstract" name="StockBasedCompensationUnauditedAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_AvailableForSaleCommercialPaperMaturityDate" name="AvailableForSaleCommercialPaperMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FederalGovernmentBondMember" name="FederalGovernmentBondMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SummaryOfSignificantAccountingPoliciesAbstract" name="SummaryOfSignificantAccountingPoliciesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_UseOfEstimatesTextBlock" name="UseOfEstimatesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_MaterialsAndSuppliesAccountingPoliciesTextBlock" name="MaterialsAndSuppliesAccountingPoliciesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RequiredAccountingChangesTextBlock" name="RequiredAccountingChangesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OperatingRouteMiles" name="OperatingRouteMiles" nillable="true" type="us-types:lengthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_MarketGroupsPercentOfTotalRailwayOperatingRevenues" name="MarketGroupsPercentOfTotalRailwayOperatingRevenues" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_EmployeesCoveredByCollectiveBargainingAgreements" name="EmployeesCoveredByCollectiveBargainingAgreements" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupCoalMember" name="RailwayOperatingRevenuesMarketGroupCoalMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupIntermodalMember" name="RailwayOperatingRevenuesMarketGroupIntermodalMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupAgricultureConsumerProductsGovernmentMember" name="RailwayOperatingRevenuesMarketGroupAgricultureConsumerProductsGovernmentMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupChemicalsMember" name="RailwayOperatingRevenuesMarketGroupChemicalsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupMetalsConstructionMember" name="RailwayOperatingRevenuesMarketGroupMetalsConstructionMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupPaperClayForestProductsMember" name="RailwayOperatingRevenuesMarketGroupPaperClayForestProductsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailwayOperatingRevenuesMarketGroupAutomotiveMember" name="RailwayOperatingRevenuesMarketGroupAutomotiveMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_NonoperatingDepletionAndDepreciation" name="NonoperatingDepletionAndDepreciation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_TaxesOnNonoperatingProperty" name="TaxesOnNonoperatingProperty" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ProvisionForIncomeTaxesTextBlock" name="ProvisionForIncomeTaxesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ReconciliationOfStatutoryRateToEffectiveRateTextBlock" name="ReconciliationOfStatutoryRateToEffectiveRateTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DeferredTaxAssetsAndLiabilitiesTextBlock" name="DeferredTaxAssetsAndLiabilitiesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherReconciliationOfStatutoryRateToEffectiveRate" name="OtherReconciliationOfStatutoryRateToEffectiveRate" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_OtherReconciliationOfStatutoryRateToEffectiveRatePercent" name="OtherReconciliationOfStatutoryRateToEffectiveRatePercent" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DeferredTaxAssetsTaxAccuralsIncludingCasualtyAndOtherClaims" name="DeferredTaxAssetsTaxAccuralsIncludingCasualtyAndOtherClaims" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_CompanyOwnedLifeInsuranceAtNetCashSurrenderValue" name="CompanyOwnedLifeInsuranceAtNetCashSurrenderValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_IncomeLossEquityInMeridianSpeedwayLlc" name="IncomeLossEquityInMeridianSpeedwayLlc" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_IncomeLossEquityInPanAmSouthernLlc" name="IncomeLossEquityInPanAmSouthernLlc" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_ConrailPensionPlanStatusChangeInInvestment" name="ConrailPensionPlanStatusChangeInInvestment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_ConrailPensionPlanStatusChangeAttributableToOci" name="ConrailPensionPlanStatusChangeAttributableToOci" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ConrailPensionPlanStatusChangeAttributableToDeferredTaxes" name="ConrailPensionPlanStatusChangeAttributableToDeferredTaxes" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_DifferenceInNsInvestmentInConrailAndShareOfConrailUnderlyingEquity" name="DifferenceInNsInvestmentInConrailAndShareOfConrailUnderlyingEquity" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_RailwayPropertyRecordedPursuantToCapitalLeases" name="RailwayPropertyRecordedPursuantToCapitalLeases" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_AccumulatedDepreciationAssociatedWithRailwayPropertyRecordedPursuantToCapitalLeases" name="AccumulatedDepreciationAssociatedWithRailwayPropertyRecordedPursuantToCapitalLeases" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_CostsOfObtainingRightsToNaturalResources" name="CostsOfObtainingRightsToNaturalResources" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_AccumulatedDepreciationAssociatedWithCostsOfObtainingRightsToNaturalResources" name="AccumulatedDepreciationAssociatedWithCostsOfObtainingRightsToNaturalResources" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_ScheduleOfCurrentLiabilitiesTextBlock" name="ScheduleOfCurrentLiabilitiesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CasualtyAndOtherClaims" name="CasualtyAndOtherClaims" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_EquipmentRentsPayableNet" name="EquipmentRentsPayableNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_RetireeBenefitObligations" name="RetireeBenefitObligations" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_LiabilitiesForForwardedTraffic" name="LiabilitiesForForwardedTraffic" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_DebtWithInterestRatesAndMaturities" name="DebtWithInterestRatesAndMaturities" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturingValue" name="DebtMaturingValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_DebtMaturingTo2014Member" name="DebtMaturingTo2014Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturing2016And2018Member" name="DebtMaturing2016And2018Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturing2019To2025Member" name="DebtMaturing2019To2025Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturing2027To2031Member" name="DebtMaturing2027To2031Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturing2037And2043Member" name="DebtMaturing2037And2043Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SecuritizationBorrowingsMember" name="SecuritizationBorrowingsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherDebtMember" name="OtherDebtMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TotalDebt" name="TotalDebt" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_LongTermDebtCapitalLeaseObligationsAndShortTermDebtCurrent" name="LongTermDebtCapitalLeaseObligationsAndShortTermDebtCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_LongTermDebtWeightedAverageInterestRate" name="LongTermDebtWeightedAverageInterestRate" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_IssuanceOfUnsecuredNotes" name="IssuanceOfUnsecuredNotes" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_IntentToRefinance" name="IntentToRefinance" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_CreditAgreement" name="CreditAgreement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_CollateralForSecuritizedBorrowings" name="CollateralForSecuritizedBorrowings" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_YenDenominatedDeposits" name="YenDenominatedDeposits" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_CreditAgreementTermYears" name="CreditAgreementTermYears" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FutureMinimumLeasePaymentsTableTextBlock" name="FutureMinimumLeasePaymentsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OperatingLeaseExpenseTableTextBlock" name="OperatingLeaseExpenseTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SharedAssetsAreasCrcLeaseMember" name="SharedAssetsAreasCrcLeaseMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ImputedInterestOnCapitalLeases" name="ImputedInterestOnCapitalLeases" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_AverageRateOfImputedInterestOnCapitalLeases" name="AverageRateOfImputedInterestOnCapitalLeases" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ContingentRents" name="ContingentRents" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ScheduleOfOtherLiabilitiesTextBlock" name="ScheduleOfOtherLiabilitiesTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RetireeHealthAndDeathBenefitObligations" name="RetireeHealthAndDeathBenefitObligations" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_NetPensionObligations" name="NetPensionObligations" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_ScheduleOfPensionAndOtherPostretirementBenefitObligationsAndPlanAssetsTableTextBlock" name="ScheduleOfPensionAndOtherPostretirementBenefitObligationsAndPlanAssetsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ScheduleOfOtherChangesInPlanAssetsAndBenefitObligationsRecognizedInOtherComprehensiveIncomeLossTableTextBlock" name="ScheduleOfOtherChangesInPlanAssetsAndBenefitObligationsRecognizedInOtherComprehensiveIncomeLossTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DefinedBenefitPlanEstimatedFutureBenefitPaymentsDescriptionTextBlock" name="DefinedBenefitPlanEstimatedFutureBenefitPaymentsDescriptionTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionAndOtherPostretirementBenefitPlanAssumptionsTableTextBlock" name="PensionAndOtherPostretirementBenefitPlanAssumptionsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_HealthCareCostTrendAssumptionsTableTextBlock" name="HealthCareCostTrendAssumptionsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionPlanWeightedAverageAssetAllcoationsTableTextBlock" name="PensionPlanWeightedAverageAssetAllcoationsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionPlanAssetsFairValueTableTextBlock" name="PensionPlanAssetsFairValueTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DefinedBenefitPensionPlanLiabilitiesCurrent" name="DefinedBenefitPensionPlanLiabilitiesCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_DefinedBenefitPlanNetGainLossDuringYear" name="DefinedBenefitPlanNetGainLossDuringYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_AmortizationOfNetLossesRecognizedInOtherComprehensiveIncomeLoss" name="AmortizationOfNetLossesRecognizedInOtherComprehensiveIncomeLoss" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_DefinedBenefitPlanNetLossThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" name="DefinedBenefitPlanNetLossThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_DefinedBenefitPlanPriorServiceCostThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" name="DefinedBenefitPlanPriorServiceCostThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_OtherDefinedBenefitPostretirePlanNetLossThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" name="OtherDefinedBenefitPostretirePlanNetLossThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_DefinedPensionPlanFutureSalaryIncreasesAssumptions" name="DefinedPensionPlanFutureSalaryIncreasesAssumptions" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_FundedStatusMember" name="FundedStatusMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AssumedTrendRateGradualDecrease" name="AssumedTrendRateGradualDecrease" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_PerCapitaCostRateAssumption2011Member" name="PerCapitaCostRateAssumption2011Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PerCapitaCostRateAssumption2019Member" name="PerCapitaCostRateAssumption2019Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionPlanAssetAllocationDebtSecurities" name="PensionPlanAssetAllocationDebtSecurities" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_PensionPlanAssetAllocationInternaltionalEquitySecurities" name="PensionPlanAssetAllocationInternaltionalEquitySecurities" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_PensionPlanAssetAllocationDomesticEquitySecurities" name="PensionPlanAssetAllocationDomesticEquitySecurities" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_DefindBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesMinimum" name="DefindBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesMinimum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_DefindBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesMaximum" name="DefindBenefitPlanTargetAllocationPercentageOfAssetsEquitySecuritiesMaximum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="nsc_DefinedBenefitPlanEffectOfOnePercentagePointChangeInAssumedRateOfReturnOnPlanAssets" name="DefinedBenefitPlanEffectOfOnePercentagePointChangeInAssumedRateOfReturnOnPlanAssets" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsTotal" name="PensionPlanAssetsTotal" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsOtherBondsAndSecurities" name="PensionPlanAssetsOtherBondsAndSecurities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsInterestBearingCash" name="PensionPlanAssetsInterestBearingCash" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsCommingledFunds" name="PensionPlanAssetsCommingledFunds" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsUsGovernmentAndAgencieesSecurities" name="PensionPlanAssetsUsGovernmentAndAgencieesSecurities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsCorporateBondsAndOtherFixedIncomeInstruments" name="PensionPlanAssetsCorporateBondsAndOtherFixedIncomeInstruments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsCommonCollectiveTrusts" name="PensionPlanAssetsCommonCollectiveTrusts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_PensionPlanAssetsCommonStock" name="PensionPlanAssetsCommonStock" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_TrustOwnedLifeInsuranceFairValue" name="TrustOwnedLifeInsuranceFairValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearsSixThroughTen" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearsSixThroughTen" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_Section401kSavingsPlansMatchingContributions" name="Section401kSavingsPlansMatchingContributions" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SummaryOfStockOptionsOutstandingTableTextBlock" name="SummaryOfStockOptionsOutstandingTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SummaryOfStockOptionsExercisedTableTextBlock" name="SummaryOfStockOptionsExercisedTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SummaryOfRestrictedStockUnitsAndRestrictedSharesTableTextBlock" name="SummaryOfRestrictedStockUnitsAndRestrictedSharesTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SummaryOfPerformanceShareUnitsTableTextBlock" name="SummaryOfPerformanceShareUnitsTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SummaryOfSharesOfStockAvailableAndIssuedTableTextBlock" name="SummaryOfSharesOfStockAvailableAndIssuedTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockholderApprovedLtip" name="StockholderApprovedLtip" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CommonStockApprovedForIssuance" name="CommonStockApprovedForIssuance" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_BoardApprovedTsop" name="BoardApprovedTsop" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TaxDeductionsInExcessOfCompensationCostsRecognized" name="TaxDeductionsInExcessOfCompensationCostsRecognized" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShare" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShare" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AggregateIntrinsicValueOfOptionsOutstanding" name="AggregateIntrinsicValueOfOptionsOutstanding" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_AggregateIntrinsicValueOfExercisableOptions" name="AggregateIntrinsicValueOfExercisableOptions" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaid" name="FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaid" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaidRelatedExcessTaxLiabilityRealized" name="FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaidRelatedExcessTaxLiabilityRealized" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaidExcessRelatedTaxBenefitsRealized" name="FairValueOfShareBasedPaymentAwardsOtherThanOptionsPaidExcessRelatedTaxBenefitsRealized" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_PerformanceShareUnitsPaidInCommonStock" name="PerformanceShareUnitsPaidInCommonStock" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PerformanceShareUnitsUnearned" name="PerformanceShareUnitsUnearned" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PerformanceShareUnitsForfeited" name="PerformanceShareUnitsForfeited" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_WeightedAverageGrantDateFairValuePerformanceShareUnitsEarnedPaidInCommonStock" name="WeightedAverageGrantDateFairValuePerformanceShareUnitsEarnedPaidInCommonStock" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_WeightedAverageGrantDateFairValuePerformanceShareUnitsEarnedPaidInCash" name="WeightedAverageGrantDateFairValuePerformanceShareUnitsEarnedPaidInCash" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_WeightedAverageGrantDateFairValuePerformanceShareUnitsUnearned" name="WeightedAverageGrantDateFairValuePerformanceShareUnitsUnearned" nillable="true" type="us-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SharesOfStockAvailableForFutureGrants" name="SharesOfStockAvailableForFutureGrants" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_SharesOfStockIssuedRelatedToStockOptions" name="SharesOfStockIssuedRelatedToStockOptions" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AccumulatedOtherComprehensiveLossTableTextBlock" name="AccumulatedOtherComprehensiveLossTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherComprehensiveIncomeLossOfEquityInvestees" name="OtherComprehensiveIncomeLossOfEquityInvestees" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_PensionAndOtherPostretirementBenefitsAmortization" name="PensionAndOtherPostretirementBenefitsAmortization" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_OtherComprehensiveIncomeLoss" name="OtherComprehensiveIncomeLoss" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_TotalPensionAndOtherPostretirementOtherComprehensiveIncomeLoss" name="TotalPensionAndOtherPostretirementOtherComprehensiveIncomeLoss" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_ReclassificationAdjustmentsForCostsIncludedInNetIncome" name="ReclassificationAdjustmentsForCostsIncludedInNetIncome" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_NetOfTaxAmountMember" name="NetOfTaxAmountMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TaxExpenseBenefitMember" name="TaxExpenseBenefitMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PretaxAmountMember" name="PretaxAmountMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FixedRateDebtPortfolioHedgedUsingInterestRateSwapsValue" name="FixedRateDebtPortfolioHedgedUsingInterestRateSwapsValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_FixedRateDebtPortfolioHedgedUsingInterestRateSwapsPercent" name="FixedRateDebtPortfolioHedgedUsingInterestRateSwapsPercent" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_InterestExpenseDecreaseRelatedToInterestRateHedging" name="InterestExpenseDecreaseRelatedToInterestRateHedging" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_OutstandingDerivativeFinancialInstrumentsGrossAssetPosition" name="OutstandingDerivativeFinancialInstrumentsGrossAssetPosition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_OutstandingDerivativeFinancialInstrumentsNetAssetPosition" name="OutstandingDerivativeFinancialInstrumentsNetAssetPosition" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_LiableGuarantorsOfIndebtedness" name="LiableGuarantorsOfIndebtedness" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_EffectiveTaxRateMedicarePartD" name="EffectiveTaxRateMedicarePartD" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_NumberOfDepreciableAssetClassesUsedRangeLowEnd" name="NumberOfDepreciableAssetClassesUsedRangeLowEnd" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DepreciationStudiesDescription" name="DepreciationStudiesDescription" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DepreciationRateRangeMinimum" name="DepreciationRateRangeMinimum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DepreciationRateRangeMaximum" name="DepreciationRateRangeMaximum" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RoadwayMember" name="RoadwayMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_IncomeLossEquityInTtxCompany" name="IncomeLossEquityInTtxCompany" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_OtherEquityMethodInvestments" name="OtherEquityMethodInvestments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_AvailableForSaleFederalGovernmentBondsMaturityDate" name="AvailableForSaleFederalGovernmentBondsMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_HeldToMaturityFederalGovernmentNotesMaturityDate" name="HeldToMaturityFederalGovernmentNotesMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_HeldToMaturityCorporateBondsAverageMaturityDate" name="HeldToMaturityCorporateBondsAverageMaturityDate" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AccountReceivableSecuritizationFacilityTermDays" name="AccountReceivableSecuritizationFacilityTermDays" nillable="true" type="xbrli:positiveIntegerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AccountsReceivableSecuritizationFacilityFundsReceived" name="AccountsReceivableSecuritizationFacilityFundsReceived" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_AccountsReceivableSecuritizationFacilityFundsRepaid" name="AccountsReceivableSecuritizationFacilityFundsRepaid" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_AccountsReceivableSecuritizationTotalFacility" name="AccountsReceivableSecuritizationTotalFacility" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsInPeriodOtherThanOptionsVested" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsInPeriodOtherThanOptionsVested" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_PensionPlanAssetsPreferredStock" name="PensionPlanAssetsPreferredStock" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="nsc_OtherPostretirementBenefitsFundedStatusMember" name="OtherPostretirementBenefitsFundedStatusMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_QuarterlyFinancialInformationTableTextBlock" name="QuarterlyFinancialInformationTableTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DepreciationRate" name="DepreciationRate" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_RailAndOtherTrackMaterialMember" name="RailAndOtherTrackMaterialMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TiesMember" name="TiesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_BallastMember" name="BallastMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherRoadwayMember" name="OtherRoadwayMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_TotalRoadwayMember" name="TotalRoadwayMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_LocomotivesMember" name="LocomotivesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FreightCarsMember" name="FreightCarsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ConstructionInProcessEquipmentMember" name="ConstructionInProcessEquipmentMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherComprehensiveIncomeLossOfEquityInvesteesNetOfTax" name="OtherComprehensiveIncomeLossOfEquityInvesteesNetOfTax" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_OtherComprehensiveIncomeLossOfEquityInvesteesNetGainLoss" name="OtherComprehensiveIncomeLossOfEquityInvesteesNetGainLoss" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_AccumulatedOtherComprehensiveIncomeLossNetGainLoss" name="AccumulatedOtherComprehensiveIncomeLossNetGainLoss" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustments" name="AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_SettledArbitration" name="SettledArbitration" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_StockRepurchasedAndRetiredSinceInceptionShares" name="StockRepurchasedAndRetiredSinceInceptionShares" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_StockRepurchasedAndRetiredSinceInceptionValue" name="StockRepurchasedAndRetiredSinceInceptionValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ScheduleOfOtherComprehensiveIncomeLossTextBlock" name="ScheduleOfOtherComprehensiveIncomeLossTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CashAndCashEquivalentsAbstract" name="CashAndCashEquivalentsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_AllowanceForDoubtfulAccountsPolicyTextBlock" name="AllowanceForDoubtfulAccountsPolicyTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_UnrecognizedTaxBenefitTextBlock" name="UnrecognizedTaxBenefitTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_FutureAnnualMinimumPaymentsDueFrom2011To2015" name="FutureAnnualMinimumPaymentsDueFrom2011To2015" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_InvestmentDisclosureTextBlock" name="InvestmentDisclosureTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ConstructionInProcessRoadwayMember" name="ConstructionInProcessRoadwayMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherEquipmentMember" name="OtherEquipmentMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherPropertyMember" name="OtherPropertyMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DebtMaturing2097And2105Member" name="DebtMaturing2097And2105Member" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DefinedBenefitPlanExpectedContributionsByEmployer" name="DefinedBenefitPlanExpectedContributionsByEmployer" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesUpTo" name="SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesUpTo" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesAbove" name="SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesAbove" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_ScheduleIiValuationAndQualifyingAccountsAbstract" name="ScheduleIiValuationAndQualifyingAccountsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="nsc_ScheduleOfValuationAndQualifyingAccountsTextBlock" name="ScheduleOfValuationAndQualifyingAccountsTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherLiabilitiesCasualtyAndOtherClaimsMember" name="OtherLiabilitiesCasualtyAndOtherClaimsMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AccountsPayableCasualtyAndOtherClaimsCurrentMember" name="AccountsPayableCasualtyAndOtherClaimsCurrentMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CommonCollectiveTrustInvestmentDebtSecuritiesMember" name="CommonCollectiveTrustInvestmentDebtSecuritiesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CommonCollectiveTrustInvestmentInternationalEquitySecuritiesMember" name="CommonCollectiveTrustInvestmentInternationalEquitySecuritiesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CommonCollectiveTrustInvestmentDomesticEquitySecuritiesMember" name="CommonCollectiveTrustInvestmentDomesticEquitySecuritiesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_CasualtyAndOtherClaimsCurrent" name="CasualtyAndOtherClaimsCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_UnrecognizedTaxBenefitsFromRefundClaimsPriorYear" name="UnrecognizedTaxBenefitsFromRefundClaimsPriorYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_UnrecognizedTaxBenefitsFromRefundClaimsCurrentYear" name="UnrecognizedTaxBenefitsFromRefundClaimsCurrentYear" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_PensionPlanAssetAllocationCashAndCashEquivalents" name="PensionPlanAssetAllocationCashAndCashEquivalents" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AmendedLtipPlanAwardGrantedAsOptionOrStockAppreciationRight" name="AmendedLtipPlanAwardGrantedAsOptionOrStockAppreciationRight" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_AmendedLtipPlanAwardGrantedAsOtherThanOptionOrStockAppreciationRight" name="AmendedLtipPlanAwardGrantedAsOtherThanOptionOrStockAppreciationRight" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_OtherDefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax" name="OtherDefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeNetGainLossBeforeTax" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="nsc_GainLossOnSaleOfPropertyAndInvestments" name="GainLossOnSaleOfPropertyAndInvestments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_RestrictedSharesMember" name="RestrictedSharesMember" nillable="true" type="us-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_ScheduleOfOtherNonoperatingIncomeExpenseByComponentTextBlock" name="ScheduleOfOtherNonoperatingIncomeExpenseByComponentTextBlock" nillable="true" type="us-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_UnrecognizedTaxBenefitsExpectedPeriodIncreaseDecrease" name="UnrecognizedTaxBenefitsExpectedPeriodIncreaseDecrease" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="nsc_FutureMinimumPaymentsFrom2016AndThereafter" name="FutureMinimumPaymentsFrom2016AndThereafter" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="nsc_LongTermAdvancesFromAffiliate" name="LongTermAdvancesFromAffiliate" nillable="true" type="us-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
</schema>