基于进化多目标优化和蚁群算法的交通控制与诱导系统分析

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1、-------AbstractWiththeincreasingoftrafficflowandcomplication，cityroadnetworkcongestionproblembecomesmoreandmoreserious.Theexistingintelligenttrafficcontrolisdifficulttoimprovetheoverallefficiencyofcitytrafficsystem.Itisaneffectivewaytosolveurbantrafficproblemswithguidancesystem,whichcan

2、balancethetrafficflowinitiatively,andcontrolsystem,whichcanrelievetrafficflowpassively.Howtobuildsuchoptimizationmodelofintelligenttransportationsystemandoptimizationalgorithmbecomesthecurrentresearchfocusandkeytechnology.Forexistingtrafficcontrolsystemproblems,thisdissertationadoptsath

3、eevolutionarymultiobjectiveoptimizationcontrolsystem,combiningwithaguidancesystembasedonantalgorithm.Thisdissertationconstructsamultiobjectiveoptimizationofsingleintersectioncontrolmodel,multiintersectioncoordinationmechanismandvehicleguidancesystem,whichcaneffectivelybalancethetrafficl

4、oadandimprovetrafficefficiencymetropolitanroadnetwork.Themainworkisasfollows:1)Forexistingtrafficcontrolsystemcannoteffectivelytakeavarietyofindicatorsintoaccount,andcan’tefficientlyregulatecontrolsignaltimingplansbasedonrealtimetrafficconditions,thisdissertationconstructsasingleinterse

5、ctionmultiobjectiveoptimalcontrolmodel,whichisoptimizedbytheimprovedevolutionarymultiobjectiveoptimizationalgorithm.Thismodelbasesonthenumberofvehicleswhichthroughtheintersectionperunitoftimeandtheaveragetimeofvehicles’delayeachcycle.Thismodelcouldadjusttheirtimingplanbasedonrealtimeroa

6、dtrafficinformation,andprovidetransportationpolicymakerstimingplanofvariouskindsofbias.Inordertomeettherequirementoftrafficcontrolsystembasedonmultiobjectiveoptimization,thisdissertationproposesaparallelnondominatedsortingmultiobjectiveoptimizationalgorithm.Simulationshowsthatthealgorit

7、hmhashighertimeliness,strongpareto-----------frontierforexplorationcapabilityandabilitytomaintainpopulationdiversity.2)Existingregionalmultiintersectioncoordinationhasahighcouplingdegreewithsingleintersectionsignalcontrolsystem,whichmakestheintersectioncoordinationbecomecomplex