The Yizhuang Line starts at Songjiazhuang where it connects Line 5 and Line 10 and ends at Yizhuang Railway Station, with of total length of 23 km.
The Shunyi Line (phase one of Line 15) connects Shunyi New Town and downtown Beijing. It runs from Wangjiang Xi Station to Sanyu Station with 9 stops.
The Changping Line connects Changping Xincheng suburbs with the rest of the city; Phase One construction covers Chengnan Station to Xi'erqi Station – a total of 21 km and with 7 stations. It will take passengers 40 minutes to travel down the new metro line and make the interchange at Xi'erqi Station with metro Line 13.
The Fangshan Line starts at the Suzhou Dajie station which is located at the intersection of Changhong Xi Lu and Suzhuang Dajie in the Liangxiangcheng section of Fangshan and ends at Guogongzhuang station in Fengtai where it will connect with the south end of Line 9.
