地铁占道施工区对交叉口混合车流通道行能力影响的模型研究

Model of Subway Work Zone Hybrid Car Circulation Capacity of Intersection Line

主要的研究对象是城市道路路段的通行性能的影响因素,尤其是针对于城市地铁占道施工地区的路段,通过对地铁施工作业现场路段的影响参数的记录和标定,使用VISSIM软件来对该区域路段进行建模和计算,尤其是单向三车道封闭内侧二车道的施工路段,且定量分析了占道施工作业区的各影响因素对该路段通行能力的影响。其中由于地铁施工区的车辆限速和限流,导致该路段车辆通行能力波动起伏十分大,通过限制大型车辆通过的比例并采用模型进行计算,得到B站的道路通行能力,路段通行能力折减比为70. 4%,表明该处地铁占道施工会造成该通行能力的较大下降。

This paper analyzes the main influencing factors of city road traffic capacity,the subway crossing road work zone road,in the end sections of subway construction parameters calibration model,based on the VISSIM software,D an Xiangsan lane closed road construction inside two lane under the basic capacity value is simulated,and the quantitative analysis of the influencing factors of road construction work area of capacity.The results show that the change with the construction area of the construction area and the rate limiting the proportion of large vehicles,construction zone capacity varies greatly,with small operation area length changes,and the establishment of the construction section capacity calculation model,through the B road lane road construction survey calculation capacity,road traffic capacity reduction ratio of 70.4%.That the larger decline in subway lane construction will cause the capacity.