城市快速路右侧车道移动作业区行车风险分析

Traffic risk analysis of moving work zone on right lane of city expressway

采用VISSIM仿真软件,分析了三车道城市快速路右侧车道移动作业区的影响范围和行车风险变化规律。结果表明:最左侧车道仅在道路交通量达到2000 pcu/h时受到右侧车道移动作业区的间接影响;移动作业区对中间车道的影响受到道路交通量和移动作业区时速的支配;右侧车道后方200 m范围内受到移动作业区的直接影响;当道路交通量达到1600 pcu/h或更低时,随着交通量的降低和移动作业区时速的提高,路段平均行车风险逐渐降低。研究成果可为城市道路作业车辆的运营管理提供科学依据。

The VISSIM simulation software is used to analyze the influence range and driving risk variation rule of moving work zone on right lane of a three-lane urban expressway. The results show that the leftmost lane is only indirectly affected by the moving work zone when the traffic volume reaches 2000 pcu/h. The influence of moving work zone on the middle lane is controlled by the traffic volume and the speed of moving work zone. A range of 200 m behind moving work zone on the right lane is directly affected by moving work zone. When the traffic volume reaches 1600 pcu/h or lower,with the decrease of the traffic volume and the increase of the speed of moving work zone,the average driving risk of the road section decreases gradually. The research results can provide a scientific basis for the operation and management of urban road working vehicles.