Line 1

Line 1 is a line coloured red. One part of Line was was originally the Fuba Line. Line 2 took a part of line 1 in the year 1987. Line 1 is the oldest metro line in China. It is a west to east line.

Trivia

 * This line connects to the 101 railway used exclusively for military purposes.
 * The shortest distance from station to station is Nanlishi Road to Fuxing Men at 424 meters.

Resources
https://en.wikipedia.org/wiki/Line_1_(Beijing_Subway)