关键词: 城市轨道交通, 需求分析, 交通分布, 方式划分, 交通分配, TransCAD仿真

Abstract: In order to solve the defects in traditional “four-step” methods of transportation demand analysis, such as remarkable centralization characteristic, low accommodation to the system condition and difficult to entity simulation, an effective approach for urban rail transit passenger flow analysis is proposed which is based on the urban comprehensive public transit overall plan and TransCAD simulation. This method is based on the basic step of “four-stage” methods. In the first step, considering the trip intensity and space distribution characteristic of different kinds of people, a new generation and attraction model is established based on population classification and trip motive. In the distribution step, this paper modifies the gravity distribution model through introducing the K-gene and the integrated process cost. In the last step, an assignment model of the urban rail transit passenger flow is built through combining reasonable system structure boundary and trip time value. Experimental results show that the new method can improve the passenger flow analysis precision and robustness, which considers urban transportation system structure, trip generalized cost and population classification.

Key words: urban rail transit, demand analysis, traffic distribution, mode split, traffic assignment, TransCAD simulation