通过对城市中瓶颈路段的交通流特性研究,运用交通波理论分析了这一异常交通状况下的交通流变化情况,得出拥挤长度、拥挤持续时间和车辆排队时间等参数的计算方法,不仅为交通网络中搜索最短路径提供依据,还可为交通管理部门进行有效交通分流提供帮助。 Through the study of the traffic flow characteristics in the bottleneck section of the city, this paper analyzes the change of traffic flow under this abnormal traffic condition by using the traffic wave theory, and obtains the calculation methods of congestion length, congestion duration and vehicle queuing time, not only Transportation network to find the shortest path to provide the basis for traffic management departments can also be effective traffic diversion to help.