Evaluation and analysis of subway accessibility based on spatial syntax: a case study of Xi'an

Accessibility is an important reference index in urban rail transit, urban roads, urban planning and other fields. Combining with the long-term planning map of Xi'an metro, this paper uses the Depthmap software for modeling, carries out qualitative analysis on the route map, and quantitatively distracts the accessibility of each line, transfer station and starting station. The results show that it is more intuitive and detailed to use this method to analyze the subway accessibility; Xi'an Metro Line 2 and line 8 have the highest accessibility and can fully meet the traffic demand; North Street Station, Bell Tower Station and other stations are the most accessible transfer stations; Xi'an Olympic Sports Center, World Expo Park and other important scenic spots are fully considered in the map planning.