Research on measuring method of freight transport capacity of multi-transport network based on different classification of transport goods

From the angle of multi-transport, combined with multi-transport generalized cost functions of different classification of transport goods, it establishes bi-level programming model to calculate the freight transport capacity of multi-transport network and designs heuristic algorithm based on the K-shortest path and minimum cost flow to solve the above model. And an example of motor-rail multimodal transport network shows usability and practical value of the model and algorithm. The paper provides theory basis for optimization of multi-transport organization.