公路货运场站车货动态配载优化研究

Dynamic Stowage Optimization of Vehicles and Cargos in Road Freight Yard

在公路货运场站内货车分批次进行运输任务的情况下,对各个时间段车辆与货物进行动态配载研究,加入了车辆周转行程时间预测,考虑到每批周转车辆的返回以及车辆保养维修等因素,以完成运输任务所需车辆数最小为目标函数,建立了车货动态配载模型。以某货运场站的运输任务为例,用解乘数法进行求解,并与相应静态配载案例进行对比。结果表明:该模型能够优化车辆资源配置,提高公路货运场站的经济效益和运作效率。

Under the condition that the vehicles carried out the transportation task in batches in the road freight yard,the dynamic stowage of vehicles and cargos in each period was studied,and the vehicle turnover travel time prediction was also added.Considering the return of each batch of turnover vehicles and vehicle maintenance,taking the minimum number of vehicles required to complete the transportation task as the objective function,the dynamic stowage model of vehicles and cargos was established.Taking the transportation task of a freight station as an example,the solution multiplier method was used to solve the problem and compared with the corresponding static stowage case.The results show that the proposed model can optimize the allocation of vehicle resources and improve the economic benefit and operation efficiency of road freight yard.