平面交叉口车流启动波的测量研究及其应用

Measurement Research for Level Crossing Traffic Flow Starting Wave and its Application

通过实际观测和统计分析 ,论证了在城市道路状况发生很大变化的情况下 ,低速混合型城市交通流的流体动力学模型及相应的计算交通状态指数的经验公式 ,仍然能够较好地刻画平面交叉口红灯转绿灯时车流启动时间依赖左转车比例和车流排队长度等条件的定量变化规律 ,从而为该模型的应用提供了必要条件 .

It is shown that, by a number of actual observations and statistics, the fluid dynamics model for the low speed traffic systems and the experimental formula to determine the traffic behavior parameter of the model also effectively depict the numerical variations of the level crossing traffic flow starting time which depends on left turn rate and queue length, though city roads have made marked progress today. These results provide necessary condition for application of the model.