网络化条件下城市轨道交通行车组织优化问题分析

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1、些立变煎上兰亟±生盥盐薹—————————————————————曲塑里丛3ABSTRACTABSTRACT：China’surbanrailtransithasbeengrowingrapidlyillrecentyearsContinuousconstructionofnewlineshasimprovedtherailtransitnetworkandhighlightednetworkingcharactersNetworkingofurbanrailtransithasbroughtmanynewfeaturestoit

2、soperationTheexistingoperationtheoryforsmall—scaleurbanrailtransitnetworkwithsingle-structurecannotmeettheobjectivedemandunderthesituationofnetworkingoperationTheoptimizationofurbanrailtransittrainoperationorganizationundernetworkingconditionsisanewfield，whichhasimpor

3、tantpracticalandtheoreticalsignificanceThispaperattemptstoexploreinthisfieldandthefollowingsectionsarelncludedInltswork：(1)Onthebasisoffullyanalysisofthecharactersofurbanrailtransitnetwork，thispaperfoCUSCSontheraillinesandtransfernodes，andputsforwardamethodtodetermine

4、theirimportancedegree(2)Thispaperanalyzesthecharactersofnetworkpassengerflow,andthenstudiesthemainproblemoftrainoperationorganizationundernetworkingconditions，includingtrainmarshalingschemeandtrainroutingchosenTheoptimizationprinciplesoftrainoperationorganizationwithi

5、nsinglelineundernetworkingconditionsaredeterminedWithtargetsofmatchingactualpassengerflowvolume，anoptimizationmodeloftrainmarshallingandtrainoperatingintervalisbuilt，whichissolvedbyafuzzymathematicalprogrammingapproach(3)Thecoordinationoftrainoperationorganizationamon

6、gseverallinesisstudied，usingthemethodofoverallparallelmoveoftrainpathbyacertainperiodoftimeFirstly,passengers’transferprocessisstudiedandWeibullfunctionisusedtodescribethewalkingtimedistributionSecondly，themodelofminimizingtransferwaitingtimeisformulatedtocoordinatetr

7、ainoperationbetween时olines，andasolutionofthemodelhasbeenachievedbyderivationoftheobjectivefunctionThenthecoordinationofmulti—linetrainoperationhasbeenanalyzedandacorrespondinghierarchicalcoordinationalgorithmisgivenFinally,acflscstudyofasimplenetworkconsistsofseverall

8、inesfromBeOingsubwayiscarriedoutTheresultssuggestthatWkibullfunctioncouldwelldescribetransferwalkingtimedistribution；themeth