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大小:1.07 MB
页数:9页
时间:2019-02-05
《有关多路公交优先交叉口配时优化的双层规划模型》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、第14卷第1期交通运输工程学报Vol.14No.12014年2月JournalofTrafficandTransportationEngineeringFeb.2014文章编号:16711637(2014)01010309多路公交优先交叉口配时优化的双层规划模型朱晓宁,隆冰(北京交通大学交通运输学院,北京100044)摘要:公交优先感应信号控制会对非优先相位车辆产生不利影响,为了均衡非优先相位的损失,降低交叉口及下游公交站台的乘客延误,建立了多路公交优先交叉口配时优化的双层规划模型。上层模型描述了基于交叉口延误以及下游公交站台乘客排队延误的优先策略时长优化,
2、下层模型在计算交叉口停驶加速延误的基础上描述了各相位绿时损失的均衡过程,以优先策略时长为决策变量,将优先策略的影响引入到下层模型。利用GaussSeidel迭代法设计了求解算法,并进行了实例分析。分析结果表明:配时优化后,周期内交叉口和下游站台乘客的总延误减少了23576.12s,同时交叉口车辆停驶加速延误减少了62.87s,双层规划模型在公交优先的前提下保障了交叉口的整体效益。关键词:信号交叉口;双层规划模型;多路公交优先;信号配时优化;损失均衡中图分类号:U491.1文献标志码:A犅犻犾犲狏犲犾狆狉狅犵狉犪犿犿犻狀犵犿狅犱犲犾狅犳狋犻犿犻狀犵狅狆狋犻犿
3、犻狕犪狋犻狅狀犳狅狉犿狌犾狋犻狆犾犲犫狌狊狆狉犻狅狉犻狋狔犻狀狋犲狉狊犲犮狋犻狅狀ZHUXiaoning,LONGBing(SchoolofTrafficandTransportation,BeijingJiaotongUniversity,Beijing100044,China)犃犫狊狋狉犪犮狋:Inductionsignalcontrolbasedonbuspriorityhadnegativeeffectsonvehiclesinnonpriorityphases.Inordertoequilibratethelossofnonpriorityphas
4、es,aswellastoreducethepassengerdelayattheintersectionandthedownstreamstations,abilevelprogrammingmodelofsignaltimingoptimizationformultiplebuspriorityintersectionwasproposed.Intheuppermodel,prioritystrategieswereoptimizedbasedontheintersectiondelayandthepassengerqueuingdelayatdownstr
5、eamstations.Inthelowermodel,theequilibriumprocessofgreenlosswasdescribedbasedonthecalculationofaccelerationdecelerationdelayattheintersection.Withprioritystrategiesasdecisionmakingvariables,theinfluenceofprioritystrategieswasintroducedtothelowermodel.Thesolutionalgorithmwasdesignedb
6、yusingtheGaussSeideliterativemethod.Anapplicationexamplewasanalyzed.Analysisresultindicatesthataftersignaltimingoptimization,totalpassengerdelaysattheintersectionanddownstreamstationsintheperiodreducesby23576.12s.Besides,thevehicleaccelerationdecelerationdelayattheintersectionreduce
7、sby62.87s.Bilevelprogrammingmodelensurestheoverallefficiencyattheintersectionunderconsiderationofbuspriority.2tabs,17figs,16refs.犓犲狔狑狅狉犱狊:signalintersection;bilevelprogrammingmodel;multiplebuspriority;signaltimingoptimization;lossequilibrium收稿日期:20130812基金项目:国家自然科学基金项目(60870014);高
8、等学校博士
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