The metro is the main component of public transportation in China's large cities. However, the existing Chinese standards for barrier-free facilities in metro stations are backward, which have no uniform requirement for the number of barrier-free facilities in metro stations. In the paper, Automatic Fare Collection (AFC) data was used to study the usage of accessible elevators at entrances of Shenzhen metro stations, and the characteristics of the usage were analyzed. An evaluation system was proposed from the perspectives of supply types and facility layout. It is found that the usage is distributed in a strip, which is concentrated in the stations along Metro Line 1 in Luohu District, Futian District, and Nanshan District. The usage on working days is small and variable, while that on non-working days is large but relatively stable and the usage changes periodically. The average number of accessible elevators at entrances of the Shenzhen metro stations is 1.5. The usage outside ​​the former Special Economic Zone is low, while that in the former Special Economic Zone is high. The overall coverage rate of the entrances and exits of accessible elevators is low, with an average of only 0.30, and even 4 stations are not equipped with accessible elevators at entrances. The results of this study can provide references for the construction and improvement of metro barrier-free facilities in other cities.
 

metro station;AFC data;usage analysis;aging problem;accessible elevators