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时间:2020-03-25
《短右转车道影响下的信号交叉口的直行通行能力.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第30卷第3期2013年3月公路交通科技JournalofHighwayandTransportationResearchandDevelopmentV01.30No.3Mar.2013doi:10.3969/j.issn.1002-0268.2013.03.022短右转车道影响下的信号交叉口的直行通行能力赖元文1”,荣建2,刘小明2(1.福州大学土木工程学院,福建福州350108;2.北京工业大学交通工程北京市重点实验室,北京100124)摘要:为量化短右转车道对直行通行能力的影响,针对设置导流岛的信号交叉口短右转车道导致车辆排
2、队阻挡,从而造成直行车道通行能力下降的问题,应用概率论与数理统计方法,考虑短右转车道长度、行人和自行车到达规律、右转车辆到达规律等交通流特性,将与右转车道相邻的直行车道车辆受阻挡情况分为被不能进入短右转车道的车辆阻挡、被右转溢出车辆阻挡、不阻挡3种情况,建立了短右转车道影响下的直行车道通行能力分析模型。通过实测数据对模型进行参数标定,采用实测数据及VISSIM仿真值验证该模型。结果表明,模型计算值与仿真值均随着右转车道长度的增加而增大;计算值总体比HCM方法计算值偏低;随着右转车道长度的增加,模型计算值接近HCM方法计算值。关键词
3、:交通工程;导流岛;通行能力模型;阻挡概率;直行车道中图分类号:U491.2+33文献标识码:A文章编号:1002—0268(2013)03—0131—05ThroughCapacityofSignalizedIntersectionInfluencedbyShortRightTurnLaneLAIYuanwenl,.,RONGJian2,UUXiaomin92(1.CollegeofCivilEngineering,FuzhouUniversity,FuzhouFujian350108,China;2.BeijingKeyLab
4、ofTrafficEngineering,BeijingUniversityofTechnology,Bering100124,China)Abstract:Inordertoquantifytheinfluenceofshortfightturnlaneonthroughcapacity,aimingattheproblemthatthevehiclesqueuingblockagecausedbytheshortfightturnlaneinsignalizedintersectionwithchannelizedisland
5、s,whichresultinginthedeclineofthethroughcapacity,byusingprobabilitytheoryandmathematicalstatisticsmethod,consideringthetrafficflowcharacteristicsincludinglengthofshortfightturnlane,arrivalregularityofpedestrians,bicyclesandfightturnvehicles,theblockagesituationsofthro
6、ughvehiclesadjacenttorightturnlanearedividedintoblockagebyrightturnunablevehicles,blockagebyfightturnspillvehicles,andnoblockage.Theanalysismodelofthroughcapacityinfluencedbyshortfightturnlaneisestablished.Themodelparametersarecalibratedusingthefielddata,andthepropose
7、dmodelisverifiedusingthefielddataandtheVISSIMsimulationresult.Theresultsshowthatthemodelcalculationvaluesandthesimulationvaluesincreasewiththeincreaseoffightturnlane’Slength,andthevaluesresultedfromthepresentedmodelaresmallerthanthoseresultedfromtheHCMmethodonthewhole
8、.Theformerareclosetothelaterwiththeincreaseoffightturnlane’Slength.Keywords:tragicengineering;channelizedisland;capacitymode
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