交通拥堵下基于实时交通信息的路径选择模型

针对路段行程时间的估算在交通路径诱导系统中的应用,提出了一种在交通拥堵下基于实时交通信息的路径选择模型.根据目前城市交通的状况,以城市交通系统的基本设施为基础,分析了影响路段行程时间的各种因素和路段行程时间的组成.利用设置在路段上的车辆自动检测装置来搜集实时交通信息,通过行程时间的计算、动态算法的构造和路网模型的建立来对交通路径进行动态规划.实验结果表明,该模型解决了实际交通系统中的时间最短路径问题,具有一定的实用价值.

Route selection model based on real time traffic information under traffic congestion

Aiming at the application of estimation of road travel time in the traffic route guidance system, a route selection model based on real time traffic information under the traffic congestion was proposed. According to the current situation of urban traffic and based on the basic facilities of urban traffic system, various factors affecting road travel time and the composition of road travel time were analyzed. The real time traffic information was searched with the vehicle auto detection devices set on the road. Through calculating the travel time, constructing the dynamic algorithm and establishing the road network model, the dynamic programming for the traffic route was performed. The experimental results show that the proposed model can solve the shortest time route problem in the actual traffic system and has some practical value.