摘要
针对城市一条公交线路上公交车的调度问题,用动态规划的方法建立了优化模型.对所需车辆趟数及所需车辆数进行了估计,得出了一个工作日的车辆趟数和车辆数的范围.用Datafit软件拟合出上、下行路线各站从0～t时间总的上、下车人数随时间变化曲线,并建立模型.在求解模型的过程中,先给出几种可行的发车方式,用计算机逐个进行试探和微调,给出了各趟车的起始发车时刻,所得结果:乘客等待率为8.54％,空载率为31.12％,与估计相吻合.
For dispatching the buses of a public transportation route of a city, we develop optimized models with the method of dynamic programming. We estimate the times of buses sending out and how many buses are needed each day. We have the range of the buses sending out and how many buses needed. Then, we use Datefit (a software) to fit the curve of the number of people who get on schedule and get off the buses of each station from time 0 to time t of both directions and construct models. To solve the models, some methods available of setting out the buses are given first. Then they are probed by a computer, and finally a schedule can be gained. The results are the passenger waiting ratio of 8.54% and the non - passenger ratio of 31.12%, which are in good agreement with estimation. To obtain a better dispatch scheme, we present the method of collecting data. Finally, the models are evaluated and a further method is also presented.
出处
《哈尔滨理工大学学报》
CAS
2002年第4期87-89,共3页
Journal of Harbin University of Science and Technology
