关键词: 城市交通, 公交专用进口道, 饱和度, 交叉口, 仿真

Abstract: Focusing on the impact of bus lanes on the traffic flows at intersections, the conditions of building bus lanes and the configuration of bus lanes have been studied in this paper. Based on the survey data, a simulation model to analyze typical layouts of bus lane at intersections is developed to examine how the bus lanes work at the entrances of intersections. A series of indices about the traffic saturations of different travel modes at the intersection have been selected to quantify the relationship between the traffic saturation and the performance of the bus lanes at intersection, with the application of VISSIM software. It employs average queue length, bus delay, car delay and average delay per person at the intersection as the evaluating indicators, and compare the values of the four indicators before and after the establishment of a bus lane. It is shown that when the saturation at the intersection is more than 0.6 and less than 0.8, the bus lane will help to make the performance of the intersection better.

Key words: urban traffic, bus lane at the entrance of intersection, saturation, intersection, simulation