信号控制环形交叉口时空资源协同优化方法分析

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1、AbstractInappropriateallocationoftemporaltransportationeffiencyforroundabouts．Theandspatialresourceleadstodeclineofpaperregardsthesignalizedroundaboutasresearchobject,andpresentsastudyonintegratedop缸mizatiort,whichhasanimportanttheoreticalsignificanceandpracticalvalueonimprovingcapacityandalleviatin

2、gtrafficcongestion．Thespatialrangeonphysicsandfuncationofroundaboutisdefinedandthelengthofspatialrangeiscalculated．Thelogicofsignalizedcontrolandoperationruleoftrafficareanalyzedbysummarizingdifferentsignalizedcontrolmodesforsignalizedroundabouts．Thekeypointsoftemporalandspatialresourceoptimizationi

3、sputforwardafterproposingchosenprincipleoftemporalandspatialelements．Basedonfielddata，rulesofvehiclearriving,departingandspeedarestudied．Synergeticsistakenasanexamplewhentheconceptofintegratedoptimizationontemporalandspatialresourceisdescripted．Theapplicabilityofsynergeticsforsignalizedroundaboutisp

4、roofed．Andtheoptimizationobject,relevantevaluationindexandprinciplearegiven．Consideringtherestrictiononcapacityofcircuitandconflictcharacteristics，thetheoreticalcapacityofsignalizedroundaboutiscalculatedbyusingstoplinemethodandconflictpointmethod．Withvehivlearrivinganddepartingcurve，thecalculationme

5、thodofcontroldelayisproposedbytakingtraveltimeofleft-turnvehiclesandoffsettimebetweenthefirstandsecondstoplineintoconsideration．Usingprecedencegraph,thephasesequenceofsignalizedroundaboutisdesigned．Basedonintegratedoptimizationstrategy,temporalandspatialresourcesischangedintoconstraintsfromttiming。l

6、anefunctionandcapacity．Theintegratedoptimizationoftemporalandspatialresourcesisfinallytransformedtoanon-linearprogrammingwiththeobjectofminirmmcycleandcontroldelayKeywords：SignalizedRoundabout，TemporalResources，SpatialResources，IntegratedOptimizationⅡI目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．IAbstra

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