围挡施工条件下道路交通组织仿真优化

邹俊杰¹，胡圣能²

1.中铁七局集团电务工程有限公司，河南郑州450003；2.华北水利水电大学，河南郑州450045

摘要：为解决地铁围挡施工占用道路资源、影响道路交通的问题，以郑州地铁12号线经北五路站围挡施工工程为例，通过交通调查分析交通疏导范围内道路的通行能力，根据围挡施工区域的道路条件及交通量，分2期设计施工区围挡方式、交叉口渠化、信号配时及公共交通组织等交通疏导方案，选取平均排队长度与交通延误时间为评价指标，采用软件VISSIM对交通疏导方案进行仿真，依据仿真结果与道路实际情况优化交通疏导方案。结果表明：优化后的交通疏导方案可缩短平均交通延误时间，提升道路通行能力，缓解交通拥堵。

关键词：围挡施工；交通组织；交通疏导方案；仿真优化

Road traffic organization simulation optimization under enclosure construction conditions

ZOU Junjie¹, HU Shengneng²

1. China Railway Seventh Bureau Group Electrical Engineering Co., Ltd., Zhengzhou 450003, China;

2.North China University of Water Resources and Electric Power, Zhengzhou 450045, China

Abstract:In order to solve the problem of road resource occupation and traffic impact caused by subway enclosure construction, takes the enclosure construction project at Jingbeiwulu Station of Zhengzhou Metro Line 12 as an example. The traffic capacity of the roads within the traffic diversion range is analyzed through traffic investigation. Based on the road conditions and traffic volume in the enclosure construction area, traffic diversion schemes such as enclosure methods, intersection channelization, signal timing, and public transportation organization are designed and implemented in two phases. The average queve length and traffic delay time are selected as avalvation indicators,the software VISSIM is used to simulate the traffic diversion schemes, and the traffic diversion schemes are optimized based on the simulation results and actual road conditions. The results show that the optimized traffic diversion scheme can reduce the average traffic delay time,improve road capacity and reduce traffic congestion.

Keywords:enclosure construction; traffic organization; traffic diversion scheme; simulation optimization