资源描述:
《Stochastic programming model for oversaturated intersecti on signal timing》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、TransportationResearchPartCxxx(2015)xxx–xxxContentslistsavailableatScienceDirectTransportationResearchPartCjournalhomepage:www.elsevier.com/locate/trcStochasticprogrammingmodelforoversaturatedintersectionsignaltimingaab,c,⇑b,cYueTong,LeiZhao,LiLi,YiZhangaDepartmentofIndustrialEngineering,TsinghuaUn
2、iversity,Beijing100084,ChinabDepartmentofAutomation,TsinghuaUniversity,Beijing100084,ChinacJiangsuProvinceCollaborativeInnovationCenterofModernUrbanTrafficTechnologies,SiPaiLou#2,Nanjing,ChinaarticleinfoabstractArticlehistory:Inlargecities,signalizedintersectionsoftenbecomeoversaturatedinrushhoursdu
3、etoReceived4September2013growingtrafficdemand.Ifnotcontrolledproperly,theymaycollectivelyresultinseriousReceivedinrevisedform2October2014congestion.HowtoscheduletrafficsignalsforoversaturatedintersectionshasthusAccepted22January2015receivedincreasinginterestsinrecentyears.Amongvariousfactorsthatmayin
4、fluenceAvailableonlinexxxxcontrolperformance,uncertaintyintrafficdemandremainsasanimportantonethatneedstobefurtherstudied.Insomerecentworks,e.g.,Yin(2008)andLi(2011),robustoptimi-Keywords:zationmodelshavebeenutilizedtoaddressuncertaintyintrafficdemandandtodesignTrafficsignalsfixed-timedsignalcontrolforo
5、versaturatedintersections.Inthispaper,weproposeasto-OversaturatedintersectionStochasticprogrammingchasticprogramming(SP)modeltoscheduleadaptivesignaltimingplansthatminimizetheexpectedvehicledelay.OurnumericalexperimentsshowthattheproposedSPmodelbetterdescribesthefluctuationsoftrafficflowsandoutperform
6、sthedeterministiclinearprogramming(LP)modelintotalvehicledelay,totalthroughput,andvehiclequeuelengths.Moreover,wecomparetheproposedSPmodelwiththeadaptivesignalcontrolmodelproposedinLinetal.(2011)toprovideinsightsonsuchimprovementsfromgreentimeutilizationandqueuebalancingperspectives.Furthermore,wes
7、tudythefeasibilityoftheproposedSPmodelinpractice,withanemphasisontherequiredsamplesizes.Ó2015ElsevierLtd.Allrightsreserved.1.IntroductionInlargecities,signalizedintersectionsoftenbecomeoversaturatedinrushho