Construction and validation of subway logistics collaborative distribution model
In order to alleviate the congestion pressure of urban road traffic and reduce the impact of automobile exhaust on environmental pollution,this paper selected"mail-transport-pickup"process as the research object.The coordinated transportation mode of ground and underground is realized by the combined transportation of subway and truck.In the non-traffic peak hours,the subway is used for freight transportation.Considering the maximum load of subway and truck,the maximum driving distance of truck,customer service time windows,the minimum sum of transportation cost and penalty cost caused by violating customer time window is taken as the optimization objective.A logistics collaborative distribution model based on subway network is constructed.Taking Lanzhou Rail Transmit Line 1 as an example,the adaptive genetic algorithm is used to solve the problem.Compared with the separate distribution of trucks,the path optimization results of the two methods are obtained.The results show that the total cost of subway-truck combined transportation is higher than that of individual trucks,but it does not mean that this mode is not feasible.The subway-truck combined transportation actively responds to the restriction policy of large trucks in the transportation power,which can improve urban road congestion and reduce environmental pollution,and has strong application value.
万方数据
维普
