Implementation of Metropolitan Agglomeration Passenger Flow Forecast in TransCAD

The forecast method of synthesis network assignment usually uses the passenger flow forecast of metropolitan agglomeration.In order to improve the precision and accurately describe the cooperation and competition relationship among public transportation modes in metropolitan agglomeration,the operation organization of competition transportation modes should be considered during the forecast.The overall idea and the plan of applying the TransCAD to solving problems on the transit assignment stage of the passenger flow forecast of metropolitan agglomeration were elaborated on the basis of operation organization.Meanwhile,the sequence of operation,each type of layer establishment,pertinent table establishment and the settings,pertinent attribute settings,assignment result disposal,and the item that should been paid attention to were also illustrated.At last,the method of introducing AutoCAD to help to establish the basic line layer and area layer was introduced.