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为提高出入口通行能力与城市道路交通安全水平,分析大型公共建筑机动车出入口长度影响因素,考虑大型公共建筑用地出行生成率与城市道路车辆反应视距,建立出入口长度模型。该模型利用建筑交通生成计算出入口道路排队长度,并利用视距三角形计算出入口车辆安全距离,取其中较大值为出入口长度。最后以某市公交枢纽站为例进行试算与仿真。仿真结果表明:应用模型所得出入口长度后,公交站出入口道路与临近城市道路的单车平均延误分别减少5.05s与6.37s,平均车速分别提高5.1km/h与4.81km/h。可见研究成果有利于大型公建机动车出入口交通渠化与线形改善。
In order to improve the capacity of entrances and exits and the traffic safety level of urban roads, the influencing factors on the length of motor vehicles entrances and exits in large public buildings were analyzed. Taking into consideration of the rate of travel of large public buildings and the reaction distance of urban road vehicles, the entry length model was established. The model calculates the length of the roadway on the entrance using the traffic generation of the building and calculates the safety distances of the vehicles at the entrance by using the line-of-sight triangles, whichever is the length of the entrance and exit. Finally take a city bus junction station as an example for trial calculation and simulation. The simulation results show that the average delays of cycling at the entrances and exits of bus stops and adjacent urban roads are reduced by 5.05s and 6.37s, respectively, and the average speed increases by 5.1km / h and 4.81km / h, respectively. It can be seen that the research results are conducive to the improvement of traffic flow and linearity at the entrance and exit of large-scale public buildings.