顾及天气影响的动态路网最优路径研究

针对雨雪雾天气影响下的动态路网最优路径问题,概括了天气影响行车的因子,基于停车视距模型进行了顾及天气影响的安全车速计算。在此基础上,将行车的时间和费用作为路阻,并结合现有交通模型,采用最大似然估计法确定了路阻函数,论述了在天气和交通状况已知的条件下,如何构建动态路网模型,并提出一种求解动态路网最优路径的算法。

Optimal Path of Taking into Account the Weather for Dynamic Network

For dynamic routing problem under the influence of rain and fog,summarizes the weather driving factor,taking into account the weather was safe stopping sight distance speed computing model.On this basis,the travel time and expenses as a road barrier and traffic with the existing model,the maximum likelihood estimation method to determine the impedance function,discussed the weather and traffic conditions known how to build a dynamic network model,and proposes a solution to dynamic network traffic optimal path al