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ID:36539035
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页数:7页
时间:2019-05-11
《单口放行单、双重控制的四路环交时空优化方法》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、公路工程Vo1.40,No.3第40卷,第3期2015年6月HighwayEngineeringJun.,2015单口放行单、双重控制的四路环交时空优化方法徐良杰,左俊中,许乃星,刘启远(1.武汉理工大学交通学院,湖北武汉430063;2.福州市规划设计研究院城市研究中心,福建福州350003)[摘要]为了充分利用十字正交环形交叉口时空资源,基于传统的单口放行四路环交单重信号控制方法,研究改进了传统的单重信号控制模型,建立了最佳周期优化模型;基于不同的环道存车区域提出了梯形控制区和完全控制区两种单口放行双重控制模型,并分别进行了空间渠化和相位相序优化研究
2、。通过仿真实验,对比分析了几种单口放行控制模型的适用条件和控制效果,得到改进的单口放行单重控制较传统控制行车延误减小;完全控制区较梯形控制区的双重控制在控制效果上没有明显差别;单口放行双重控制模型优于单重控制模型。最后以福州市浦上大道/闽江大道四路环形交叉口为实例,验证了本文提出的信号控制模型的有效性。[关键词]环形交叉口;单口放行;单、双重信号控制;时空资源优化;相位相序;仿真[中图分类号】U491.54[文献标识码]A[文章编号]1674-0610(2015)03—0080-06OptimizationMethodforTimingandSpacin
3、gofSingleandDualSignalControlatFour-legRoundaboutBasedonSingleReleaseXULiangjie,ZUOJunzhong一,XUNaixing,LIQiyuan(1.SchoolofTransportation,WuhanUniversityofTechnology,WuhanHubei430063,China;2.Ur-banResearchCenter,FuzhouUrbanPlanning&DesignResearchInstitute,FuzhouFujian350003,China)
4、[Abstract]Inordertofullyusethetime.spaceresourcesofcrossroundabouts,basedonthetradi.tionalsinglereleasesinglesignalcontrolforfour·legroundabouts,thisresearchimprovesthecontrolrood—elsthetraditionalsinglesignalcontrolmodels,andestablishedtheoptimalcyclelengthmodels;Basedondifferen
5、tstorageregionofthecirculatinglane—T-typecontrolregionandthewholecontrolregion,twotypesofthesinglereleasedualsignalcontrolbasedonwaspresented,andthespacechannelizationandphaseoptimizationwasstudied.Bysimulationexperiment,theapplicableconditionandcontroleffective—nessofsinglerelea
6、secontrolmodelarecomparedandanalyzed,thedelayoftheimprovedsinglereleasesinglesignalcontrolislowerthanthetraditionalsinglereleasesinglesignalcontrol;ButtherewerenosignificantdifferencesincontrolefectivenessbetweenT·-typecontrolregionandthewholecontrolregionofdualsignalcontrol;Thes
7、inglereleasedualsignalcontrolmodelwassuperiortothesinglereleasesin—glesignalcontrolmode1.Finally,takingPushangRoad/MinjiangRoadRoundaboutinFuzhouasanex-ample,andtheresultshowsthevalidityofoptimizationcontrolmodels.[Keywords]roundabout;singlerelease;singleanddualsignalcontrol;opti
8、mizationfortime—spaceresources;phaseandp
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