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1、AbstractRecently,thenumberofmotorvehiclesownedinChinaisincreasingrapidlyastheaccelerationofcityurbanizationandmechanization.Trafficcongestionhasbecomeacommonprobleminmetropolitancities,andperiodicqueuingphenomenoncanbefoundinsomeveryseriouscongestion
2、area,whichmeansthattheintersectionisinthestateofoversaturation.Asthetrafficdemandkeptincreasing,individualoversaturationwillspreadtosurroundingarea,evolveintooversaturatedintersectiongroup,resultinregionalcongestion・Inthiscontext,researchonregionalco
3、ntrolmethodofoversaturatedintersectiongroupisofgreatsignificancetoeasetrafficcongestion.Firstly,thisthesisovervieweddomesticandabroadachievementsondescribingoversaturationstateofintersectiongroupandoutlinedrelatedconcepts・Then,accordingtothecharacter
4、isticsoftheintersectiongroup,anodeimportancebasedmethodtodividethescaleofintersectiongroupanddeterminethecriticalpathispresented,whichprovidedtheoreticalbasisforsubsequentintersectionsignalcontroloptimizationaswell.Afterthat,thepaperputforwardamulti-
5、agentbasedmulti-layerdistributedcontrolmodelofoversaturatedintersectioncongestion,providedatheoreticalframeworkforintersectiongroupsignalcontrolmethod.Moreover,thepaperproposedacriticalpathbasedoversaturatedintersectiongroupsignalcontroloptimizationm
6、odelbyusingbi-levelprogrammingtheory,solveditbythehybridoptimizationstrategyofcombininggeneticalgorithmwithsimulatedannealing,andgaveitscalculationsteps.Finally,theeffectivenessoftheapproachmentionedinthispaperisverifiedbytakingJingmencentralcityarea
7、incase・Keywords:trafficcontrolintersectiongroupover-saturatedbi-levelprogrammingmodelGASAalgorithm摘要(I)Abstract(II)1绪论(1)1.1研究背景与意义(1)1.2国内外研究概况(2)1.3研究内容和技术路线(5)1.4论文关键技术及创新点(8)1.5本章小结(8)2交叉口群过饱和概述(9)2.1相关概念及定义(9)2.2现有区域协调控制系统在过饱和状态交叉口群中的应用(10)2.3交叉
8、口群范围的确定(11)2.4交叉口群关键路径识别(14)2.5本章小结(14)3交叉口群过饱和控制结构(18)3.1交叉口群过饱和拥堵多层分布式控制模型(18)3.2系统评价指标(20)3.3本章小结(21)4基于双层规划模型的交叉口群过饱和信号控制优化(22)4.1双层规划模型概述(22)4.2模型构建(22)4.3约束条件分析(26)4.4模型求解(28)4.5本章小结(29)5仿真案例分析(30)5.1仿真数据收集(30)5.2交叉口群关键路径确定(40)5.3交叉口群信号配时方案计算(4
