路段速度协调性评价方法及应用——巢湖市北外环路限速合理性研究  

Speed Consistency Evaluation Methods and Application for Roadway Segments

作　　者：孙洁 

机构地区：[1]南京科兴工程建设项目管理有限责任公司

出　　处：《城市公共交通》2015年第8期28-31,共4页Urban Public Transport

基　　金：国家自然科学基金青年基金资助项目(51208261);教育部人文社会科学青年基金资助项(12YCZH062);中央高校基本科研业务费专项资金资助项目(30920140132033)

摘　　要：速度差或者速度离散性是反映交通流运行过程稳定性和协调性的重要指标为保障路段交通的通行Ⅻ页畅、减少事故隐患点，需要对路段速度一致性进行合理评价．，本文通过提出巢湖市北外环路的限速问题并对其进行路段协调性评价，介绍了基于运行速度协调性评价标准的路段速度协调性评价方式，主要从运行速度与设计速度、限速之间的协调性；不同路段间速度协调性；不同交通方式间的速度协调性三个方面进行，并给出了对于改善速度协调性的相关建议．Speed consistency or speed dispersion are two important indicators reflecting the stability and consistency of traffic flow. To ensure the smoothness of traffic operation, and reduce the black points, it is necessary to assess the speed consistency for roadway segments. On the basis of field survey to the North Outer-loop Road in Chaohu, Hefei, the problems regarding speed setting and speed management are raised accordingly. After introducing the concept and evaluation methods of speed consistency, the degree of speed consistency are assessed from the following three aspects, the speed consistency between operating speed, design speed and speed limit, the speed consistency between different roadway segments, and the speed consistency between different traffic modes. Finally, the suggestions for improving the speed consistency are given.

关 键 词：速度一致性 评价方法 运行速度 限速 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]