Research on appraisal system of transport network planning project in corridor

Revising the basic concept of transport corridor, it wound introduce its theory evidence for the network planning project. By analyzing the key issues affecting the shape and framework of transport corridor, five qualitative indices was put forward with each one´s detail reference. Then seven groups of indices were found out with each formula by analyzing which one rational transport system should have, it included that the total length of each transport mode should spread to certain extent, and different transport modals should divide the transport work rationally, and that all the transport network investment should be limited to a fixed ratio relative to its GDP, the layout of transport network should accommodate to the OD distribution, and that the transportation networks designing aims should take into account the restrict of natural resource such as lands occupancy. As a result, a multilayer fuzzy appraisal system was set up by introducing the fuzzy mathematics method.