信号交叉口改进延误模型及实测分析  

Improved Model of Delay and Measurement Analysis at Signalized Intersection

作　　者：陈栋[1] 刘泽高 贾丽斯[1] 薛郁[1] 

机构地区：[1]广西大学物理科学与工程技术学院,广西南宁530004

出　　处：《广西科学》2015年第2期231-236,共6页Guangxi Sciences

基　　金：国家自然科学基金(批准号:11262003和11047003);广西壮族自治区研究生创新基础项目(批准号:105930903077)资助

摘　　要：【目的】为了给国内城市信号交叉口规划设计和服务评价提供科学依据,研究城市交叉口延误模型。【方法】对比Australian延误模型和Canadian延误模型,提出改进的延误模型,再采用牌照法,对饱和度接近1的道路交通延误进行实测,并把实测结果与3个模型进行对比。【结果】改进的延误模型在饱和度较低和较高的情况下,与Australian延误模型和Canadian模型的模拟数据很接近;在饱和度接近1时,改进的延误模型与实测结果能较好吻合;改进模型与Brilon和Wu的马尔科夫链方法比较,形式简单,计算简便,可操作性好。【结论】改进的模型适合用于平面混合低速的城市交叉口道路延误分析。[Objective]In urban road network,vehicles delay generally approaches 80% at the in-tersection.Survey and investigation of delay at the intersection play an important role in the practical significance for urban traffic management and control.[Methods]Compared to Aus-tralian delay model and Canadian delay model,an improved delay model was proposed in this paper.The delay was measured by the License Number Matching Method when the saturation was closed to 1 .And then the measured results were compared with that of the three models[Results]The improved delay model is similar to Australian delay model and Canadian delay model in the case of lower and higher saturation,respectively.When the saturation is close to 1 , the improved delay model is better agreement with the measured results and approaches high precision.Compared with Markov chain method proposed by Brilon and Wu,it is so simple, convenient and easy-to-operate for the improved delay model.[Conclusion]The improved model is suitable for analyzing the delay that the urban road intersections are mixing low speed.

关 键 词：城市路网 车辆延误 交通实测 牌照法 

分 类 号：U491[交通运输工程—交通运输规划与管理]