【摘要】 针对我国掉头交通所导致的交叉口通行效率低下等问题,对交叉口调头点交通特性进行理论分析,阐述四种掉头点设置方式的优劣。结合各个交叉口调头点的特点,以停车延误和排队长度作为评价指标,在典型应用环境中对其进行VISSIM微观仿真。通过对仿真数据的计算与分析,得到各个交叉口调头点停车延误与排队长度在不同交通流量下的变化规律,明确了交叉口调头点设置方式的适应性情况,为交叉口的性能评价与设计优化提供理论依据。更多还原

【Abstract】 U-turns in the intersections have caused several problems such as low efficiency. In this paper,the traffic characteristics of u-turn points at intersection were theoretically analyzed and the advantages and disadvantages of four set modes of turning points were elaborated. Combining with the characteristics of each type of intersection turning point,the stop delay and queue length were simulated in a typical application environment using VISSIM.Based on the simulation data collection and analysis,the parking delay and the variation rules of the queue length under different traffic flow of every intersection point were obtained and the adaptability of intersection turning point setting mode was determined,which has provide theoretical reference for the performance evaluation and design optimization of intersections.更多还原