Route Optimization of Road-Rail Intermodal Transportation under Low Carbon Background
Considering the different characteristics of road and rail freight transportation,this paper mainly studied the route selection optimization of road-rail intermodal transportation to realize low-carbon transportation.Given the transport characteristics of bulk cargo flow in road-rail intermodal transportation,the paper constructed a 0-1 planning model for route optimization of road-rail intermodal transportation considering carbon emissions by introducing triangular fuzzy numbers.Constraints were the total carbon emission limit of goods during transportation,restrictions on the mode of cargo transshipment within a node,and only one mode of transport between any adjacent transport nodes.In the model,the objective function was to minimize the transportation cost of goods in transit,the carbon emission cost generated during transportation and transshipment,and the time penalty cost caused by exceeding the time limit of delivery.To verify the correctness of the proposed mathematical model,the paper designed an example analysis of a road-rail intermodal transport network including 11 hub nodes.The research results show that transferring road goods to the railway network can reduce transportation costs and carbon emissions,improving the efficiency and environmental protection of transportation.
Carbon EmissionsRoad-Rail Intermodal TransportationRoute OptimizationInteger Programming ModelTriangular Fuzzy Number