| Cargo alluring areas of transport corridors reflects the distribution of the car flow and cargo flow in network. And it can manifest the alluring load of sites or sections indirectly. Accurate definition of the cargo flow alluring areas, is the prerequisite and basis of the planning and construction of the transport corridors, and provides data to support long-term planning. Definition of cargo alluring areas of transport corridors is basically determined qualitatively, and hasn't formed a complete theoretical system. Therefore, on the basis of the shortest path algorithm, the paper studies further on cargo alluring areas of transport corridors.Through analysis of the functions and elements of transport corridors, the paper selects methods to define its alluring areas, differentiates direct alluring areas from indirect alluring areas of transport corridors, and puts forwards geometric division method, analysis method et. Definition of alluring areas of different transport modes is different, so the paper discusses definition methods of road and railway modes in detail.The paper introduces methods to differentiate general nodes from important nodes of road transport corridor. On this basis, the paper forms methods to determine the direct cargo flow alluring areas of road single-transport corridor and the indirect cargo flow alluring areas of road network-transport corridor. The paper puts forwards the definition methods of alluring areas of rail transport corridors. The methods improve the definition methods of cargo flow alluring areas. The paper also discuss methods to select the route in the condition when alluring areas of rail transport corridors overlap and rail transport corridors parallel. In the same time, the paper analyses the overlapped alluring areas for both of road and rail transportation, and allots the overlapped alluring areas using path selection model. Combining theory with practice, the paper analyses and demonstrates the theoretical research through some cases. |
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