Study On Key Problems Of Passenger Flow's Evacuation For Large-scale Passenger Transport Hub

A large-scale passenger transport hub in a city is the facility for traffic conversion, which connects the inbound and outbound traffic. In order to meet the transportation demand of railway, aviation, highway, water transport among cities and the travel demand intra-city, large-scale passenger transport hub undertake passenger flow transshipping and collecting and distributing task of long-distance, short-distance and intra-city travel. With the development of the social economy of our country and accelerating of urbanization process, the traffic problem in urban is serious day by day. The traffic problems in big cities can be attributed largely to passenger traffic hub of the city which is not perfect enough. So, under the current circumstances, developing the study of large-scale passenger hub flow evacuation is very timely and necessary.Firstly, the article give a systematic analysis on large-scale passenger transport, introduce it's connotation and extension of content, composition, system characterstic, flow characteristic, aggregation and distribution effect of large passenger transport hub, put forward the concept of large hub cities, and introduce the contents of passenger flow evacuation.Secondly, setting about from the influence area of city passenger transport hub, fully considering influence factors such as the distance from hub, allocation of evacuation mode line, etc. the evacuation influence area are divided into four levels and the evacuation questions of each level are analyzed. Thirdly, for three and four level evacuation area, we divide the evacuation area into several categories of virtual zones and ascertain two and three categories as the main study scope of mode split for large-scale passenger transport hub. Set out from the psychology of passenger, fully analysis the factors affecting passengers evacuated, we set up MNL model based on evacuation passenger.Fourthly, analysis the space-time distribution characteristics and traffic structure of commute flow. Then make integration analysis on three aspect of time, space and traffic management between commute flow and evacuation flow.At the end of the paper, conclusion was drawn and the future area was proposed.