Functional Characteristics of the Surrounding Area of Beijing Metro Line 5 Based on POI Data.

As an important urban infrastructure, rail transit not only has transportation function, but also has a close connection and harmonious development with the surrounding urban space. Taking Beijing Metro Line 5 as an example, each station of Beijing Metro Line 5 was analyzed by GIS software and Echarts chart based on POI data. The functions of subway site type were divided into main function, secondary function and no signifi cant function, and various types of sites within the main functional characteristics of urban functions were discussed in details. The paper presents a new method for identifying urban functional features, which can be applied to not only other metro stations in Beijing but also the same type of cities. Moreover, it lays a foundation for the research of rail transit subway stations and their related researches. [ABSTRACT FROM AUTHOR]