Chaoyang and Tongzhou Districts
What was the terminus of Line 7 (Beijing Subway) from Dec 2014 to Dec 2019?
Line 7 ( Beijing Subway ) Line 7 of the Beijing Subway ( ) is a rapid transit line in Beijing . It runs parallel and to the south of Line 1 and Batong line , from the Beijing West railway station in Fengtai District to in Tongzhou District . Like Line 6 , Line 7 provides additional relief to the overcapacity Line 1 adding another east–west trunk line to the Beijing Subway network . Description . Line 7 has 30 stations , currently 29 stations are opened ( station is not opened yet ) . The line uses 8-car Type B trains . The line was originally slated to have 15 stations , from the Beijing West railway station to Baiziwan . A revised plan approved by the Planning Committee of the Beijing Municipal government called for 21 stations over , ending in Jiaohuachang . Stations . List of stations from west to east . Planning . Line 6 was originally conceived in 1973 as a pan-handle shaped route incorporating the central sections of todays Lines 6 and 7 . In 1983 Line 6 was dissolved into two distinct lines . The section under Guanganmen , Luomashi , Zhushikou and Guangqumen Streets and the handle branch to Fengtai became Line 7 . The rest of the loop with a new south eastern extension to what was at the time the Beijing Jiaohuachang ( Coking Plant ) complex became Line 6 . Line 7 was later revised westward to terminate at a new major railway station called Beijing West railway station and Line 9 taking over servicing Fengtai . When Beijing West railway station started construction in the early 1990s space was set aside for a subway station allowing Cross-platform interchange for the future Lines 7 and 9 . By 1993 the planned section of Line 6 heading to Coking Plant complex was revised as an eastern extension of Line 7 , forming the alignment built today . In 2013 , planners revised the design of Line 7 from using the standard 6 car trains to 8 car trains after performing a detailed transport study of the Fatou area . Fatous population projections were upgraded from 100,000 to 220,000 people and be a significant employment hub in the future . Planners decided that 6 cars trains would have insufficient capacity for the new demand projections . Line 7 was originally planned to use 1500 V DC overhead lines to power the longer subway trains . However , the already completed platforms at Beijing West railway station assumed the line would use a 750 V DC 3rd rail system like Beijings legacy subway lines and built with vertical clearance for such . The line ultimately used a 1500 V DC 3rd rail system as a compromise . History . Phase 1 . Construction began in January 2010 . It started test runs in September 2014 with full operation beginning on December 28 , 2014 . Eastern extension ( Phase 2 ) . The eastern extension runs through Chaoyang and Tongzhou Districts . The extension adds 9 new stations and of new line . The extension is fully underground . It was opened on December 28 , 2019 ( except station ) . Timeline . - January 8 , 2008 : Plans for Line 7 reported in the media . Construction scheduled to begin by the end of the year . - Oct . 30 , 2008 : Line 7 route plan with 23 stations receive regulatory approval . Construction still scheduled to begin by end of the year . - July 19 , 2009 : Construction on Line 7 announced to begin in late August 2009 . - Nov . 6 , 2009 : Commencement of Line 7 construction deferred to 2010 . - Jan . 19 , 2010 : Construction reportedly begun along Guangqu Road near the easternmost section of the line . - Dec . 28 , 2014 : Operations of Phase I of Line 7 begin , except for Shuangjing station and Fatou station . - Dec . 30 , 2018 : An infill station of Phase I , Fatou station was opened . - Dec . 28 , 2019 : Operations of Phase II of Line 7 begin , except for Universal Resort station . An infill station of Phase I , Shuangjing station was opened .