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1、萬方數(shù)據(jù)ABSTRACTWiththelarge··scaleconstructionofhigh·-speedrailway,thepassengertransportdemandisincreasing,moretrain—setsareneededtocoverthetimetable.However,thetrain-setsaresoexpensivethattheyoccupyalargerproportioninhi。ghspeedrmlwayinvestment,inordertosavetheinvestmentandoperationcost,therailway
2、relateddepartmentshopeitcancoverthetimetablewithminimumnumberoftrain-setsandimprovethetrain—setutilizationratios.Thenumberoftrain—setsandutilizationratiosarerestrictedtothetrainoperationmodes.Thispapermainlystudiedtheimpactoftrainoperationmodesontrain.setutilization,SOastohaveaconsiderabledecre
3、asingofthenumberoftrain—setsandimprovethetrain—setutilizationratios.ThemainworkandachievementsCallbesummarizedasfollows:1.Thebasicfeatures,advantagesanddisadvantagesandapplicableconditionofdifferenttrainoperationmodeswereanalyzed.Basedonthroughandtransfermodes,thispaperconstructedfourtrain—setu
4、tilizationscenesbycombiningdifferenttrain—setutilizationmodestostudytheimpactoftrainoperationmodesontrain—setutilization.Viatheanalysisoftrain-setroutingbasicfeaturesinthisfourscenes,thispapersummarizedtheimpactisconcemedwithwhetherthetrainoperationstructuresareeasytoformthetrain-setroutingwhic
5、hcontainsthelongandshorttrainlines.2.Basedonthetrain-setutilizationmodesofourhighspeedrailway,thispaperbuildthetrain.setroutingoptimizationmodelswhichfacesingledepot,multipledepotswithmaintenanceintheirowndepotsandmultipledepotswithmaintenanceineverydepots,respectively.Themodeswereconstructedon
6、thetransitionnetworkwiththetrainlinesasthenodesandthefeasibletransitionarcsasthesides,consideredthefirstlevelmaintenancerequirementsbothoncumulativeoperationtimeandmileage,traindiagramandtrain-setsconservationconstraintsandaimedtoCOVerthetimetablewithminimumnumberoftrain-sets.Inaddition,toimpro
7、vethesolvingefficiencyofthemodels,thispaperproposedtwotransitionnetworkconstructionstrategiestodecreasethenetworksizeandreducethenumberofconstraints.Finally,thispapersolvedthemodesonpracticaldatabyCPLEXsoftware.Theresultsshowthato