Research On The Coordinated Relationship Between Urban Rail Transit Network Accessibility And Passenger Flow

Rail transit is the backbone of the urban traffic, it directly influences the development of the overall layout and function orientation of the city, and it will have a profound influence on the future of the city. At present, the domestic rail transit in big cities are in the network operation phase, the city center and key functional areas with so many passengers still have the problem of the shortage of rail transit network density and the site coverage. At present, it is in great need to grade the demand of the rail transit network and reasonable rail transit network planning for such areas.Urban rail transit network density enhancement is a process to solve the conflict relationship of the existing rail transit network and growing passenger flow especially in the city center and key functional areas. Space syntax is applied in this article. Any traffic network is to connect one space to anther channel of the space, rail transit network density enhancement is actually to improve the convenience degree of the space to anther space, namely to improve the accessibility of the space. Therefore, the analysis of rail transit network and traffic accessibility has an important significance to grade the rail transit demand levels and rail transit network planning and design.This paper selects space syntax morphological analysis variable as the evaluation standard of urban rail transit network accessibility. Urban road and rail transit integration model is established, and it uses SPSS to set up the relationship equation between rail transit network accessibility and passenger flow. According to this equation, rail transit network density enhancement demand level coefficient is put forward to divide Beijing rail transit network density enhancement demand level quantitatively, and it chooses CBD which has the highest demand level to enhance the rail transit network density. The results show that the coefficient can be used as an important index of urban rail transit network planning and design.This paper takes Beijing as the research scope to study the coordinated relationship between rail transit accessibility and passenger flow quantitatively, it can provide certain guiding significance to urban rail transit network planning and design as well as relevant policy.