基于阶梯需求的快速路交通控制

针对以往研究大多考虑交通需求为定常这一不完全符合实际的情况,给出了阶梯需求的概念,并应用交通网络中的一个基本事实,即在一定条件下路网中车辆所花时间之和的极小值等价于输出流率的极大值,考虑控制目标为最大化输出流率.根据交通状况集成限速控制、入口匝道控制等控制措施获得交通网络控制的最佳性能.仿真实例说明此方法是有效和可行的.

Traffic control for freeway with step demands

On accoant of the disadvantage of the assumption that existing traffic demands are looked as static,the definition about step demands was introduced.A basic fact was utilized that the minimization of TTS(total time spent by vehicles in the traffic network) is equivalent to the maximization of the outflow.The control objective is was then determined to maximize the outflow.In consideration of the dynamic speed limit,the on-ramp metering and the bottleneck,in order to obtain the best network performance,the i...