Micro-simulation of urban expressway weaving sections using field data in Shanghai

Proceedings. The 7th International IEEE Conference on Intelligent Transportation Systems (IEEE Cat. No.04TH8749) Pub Date : 2004-10-03 DOI:10.1109/ITSC.2004.1399026

Jian Sun, Xiaoguang Yang, B. Zhang, C. Zhang

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引用次数: 9

Abstract

A major social problem in the developing countries is the traffic congestion. Weaving sections are a typical type to carry out merge and diverge in urban expressways; meanwhile it is usually a traffic congested bottleneck and incident spot and is characterized for intense lane-changing and complicated driver behavior. Four weaving sections are simulated in CORSIM platform using the field data that come from the traffic information collecting system in Shanghai China. Numerous simulation tests indicated that there are differences in the recurring off-peak and peak time traffic flow in the weaving sections. Considering China's vehicle performance, road status and driver behavior, this conclusion is determined: the main parameters affecting simulation precision are desired free-flow speed, warning sign position, gap acceptance, yield value and time to complete lane-change. Good results are obtained after using the calibrated CORSIM model in simulating the weaving sections.

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基于现场数据的上海城市高速公路编织路段微观模拟

交通拥堵是发展中国家的一个主要社会问题。编织路段是城市高速公路上进行合流分流的典型路段;同时也是交通拥挤的瓶颈和事故点，具有变道剧烈、驾驶员行为复杂的特点。利用来自上海交通信息采集系统的现场数据，在CORSIM平台上对4个路段进行了模拟。大量的仿真试验表明，交错路段的非高峰时段和高峰时段交通流存在差异。考虑到中国的车辆性能、道路状况和驾驶员行为，得出以下结论:影响仿真精度的主要参数是期望自由流速度、警告标志位置、间隙接受、屈服值和完成变道时间。采用校正后的CORSIM模型对织造断面进行了模拟，取得了较好的效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings. The 7th International IEEE Conference on Intelligent Transportation Systems (IEEE Cat. No.04TH8749)

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