[4] West section: The stations from Zhangguozhuang to Xiju, on the southwest corner of the Line 10 loop, opened on May 5, 2013.

The precise route of Line 14 has been revised several times even after construction began.

It crosses Line 5 at Puhuangyu and follows the Pufang Road through the Fangzhuang residential neighborhood.

After leaving Wangjing, the line emerges north of the 5th Ring Road and terminates at Shangezhuang.

[18] The proposed final routing of Line 14 headed through Zhangyicun, near Marco Polo Bridge.

However, residents of Dujiakan and nearby Wanpingcheng wanted the subway to be routed south and terminating in their neighborhoods instead.

By the end of 2009, Tiantongyuan and Wangjing residents disputed the proposed alignment of Line 14's northern portion.

Tiantongyuan and its periphery argue that with the new developments being built in the area, traffic demand will be large.

Wangjing residents opposed the proposal put forward by Tiantongyuan residents believing that the huge passenger flow from an extension to Tiantongyuan will overwhelm Line 14 which is already slated to serve their neighborhood.

Wangjing is a large community with significant commercial areas in Chaoyang District north east of the fourth ring road.

Although numerous buses connect Wangjing with its vicinity and the city center, it is still suffering from traffic congestion.