山地城市公交优先道通行能力计算模型探讨  

Discussion on the Calculation Model of Bus Priority Road Intersection and Section Capacity in Mountain Cities

作　　者：何红艳 钟添翼 王世彬 蔡晓禹[1] HE Hongyan;ZHONG Tianyi;WANG Shibin;CAI Xiaoyu(School of Transportation,Chongqing Jiaotong University,Chongqing 400074,China;Traffic Patrol Police Corps of Chongqing Public Security Bureau,Chongqing 400055,China;Chongqing Key Lab of Traffic System&Safety in Mountain Cities,Chongqing 400074,China)

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]重庆市公安局交通巡逻警察总队,重庆400055 [3]山地城市交通系统与安全重庆市重点实验室,重庆400074

出　　处：《现代交通技术》2021年第4期65-70,共6页Modern Transportation Technology

摘　　要：公交优先道是在高峰时段设置了分时段的地面公交优先道系统,也是作为交通需求管理的一种形式,公交优先道通行能力的分析和计算在公共交通运输方面具有重要作用。结合山地城市公交优先道的特征进行分析,分别从交叉口和路段两个方面选取通行能力主要影响因素,包括绿信比和路段开口数量、开口驶入流量、开口驶出流量,提出山地城市特征引入公交优先道通行能力计算模型的思路。基于已有通行能力计算模型,选择理想通行能力计算模型进行优化,构建山地城市信号交叉口和路段公交优先道通行能力计算模型,分析路段开口影响因素的影响系数。结合重庆市渝南大道交叉口相关数据进行模型优化结果验证。结果表明,优化模型通行能力计算结果与实际通行能力误差比<6%,达到可接受范围,该模型能够较准确地计算山地城市公交优先道实际通行能力。Bus priority lane is a kind of ground bus priority lane system which is set up in different time segments during peak hours.As a form of traffic demand management,the analysis and calculation of the capacity of bus priority lane plays an im-portant role in public transportation.Combined with the analysis of the characteristics of bus priority lanes in mountainous cit-ies,the main influencing factors of traffic capacity were selected from two aspects of intersection and section,including green signal ratio,number of road openings,incoming flow and outgoing flow,and the idea of calculating the capacity of bus priority lanes characterized by the characteristics of mountainous cities was put forward.Based on the summary and analysis of the ex-isting capacity calculation models,the ideal capacity calculation model was selected for optimization,and the capacity calcula-tion models of signalized intersections and priority bus lanes in mountainous cities were constructed to analyze the influence co-efficients of factors affecting road openings.The results show that the optimization model of capacity calculation results and the actual capacity than the error within 6%,to achieve an acceptable range.It can accurately calculate the actual traffic capacity of bus priority lanes in mountainous cities.

关 键 词：山地城市 公交优先道 影响因素 通行能力 

分 类 号：U121[交通运输工程]