Line 9 (Beijing Subway)

Line 9 is a rapid transit line in the Beijing Subway system. It operates in a north-south direction, primarily serving the western part of Beijing. The line is characterized by its distinctive pink color on maps and station signage.

Opened in phases, Line 9 initially served as a supporting line for the 2012 Summer Olympics held in London, connecting the Beijing West Railway Station (a major transportation hub) with areas south of the city. Later extensions significantly expanded its reach.

Key features of Line 9 include its interchanges with multiple other subway lines, facilitating transfers for commuters and travelers. It provides access to significant locations such as the Military Museum of the Chinese People's Revolution and various residential and commercial areas. The line contributes significantly to alleviating traffic congestion in western Beijing and improving public transportation options for residents and visitors.