内环杨高中路出口多交织交通拥堵改善提升研究

Research on Improving Multi-interlaced Traffic Congestion at Exit of Yanggao Middle Road in Inner Ring

在城市快速化机动出行背景下,城市快速路的出行量急剧增加.出入匝道作为进出快速路的节点,节点处交通交织特性,使其成为快速路的瓶颈节点.该文以上海内环浦东段罗山路-杨高中路出口匝道为研究背景,通过对现状交通拥堵排队状况的调研分析,针对现状匝道通行能力不足,交织严重,排队过长等问题,提出具体方案,同时利用VISSIM微观仿真模拟系统对改善方案进行仿真模拟.通过宏观和微观结合的方法,可以更为清晰有效的反映方案实施效果.运行一年多以来,节点交通得到了明显的改善.

Under the background of urban rapid mobile travel,the traffic volume of urban expressway has increased sharply.As the node of the freeway,the onramp becomes the bottleneck node of the freeway because of the interweaving characteristics of the traffic at the node.This paper takes the on-ramp of Luoshan Road-Yangzhong Road in Pudong Section of Shanghai Inner Ring as the research background,through the investigation and analysis of the current traffic congestion queuing situation,aiming at the problems of insufficient onramp capacity,serious interweaving and long queuing,puts forward specific improvement schemes.At the same time,VISSIM micro-simulation system is used to simulate the improvement scheme.By combining macro and micro methods,we can more clearly and effectively reflect the effect before and after the implementation of each scheme.After running for more than a year,the node traffic has been significantly improved.