Hence, it is often wrongly called "light rail", as is commonplace in China with elevated or at-grade metro lines.

Trains can reach a speed of up to 100 kilometres per hour (62 mph).

1 bridge, from Guanghua Road (between Dongxing Road and Zhongshanmen stations) to Babao, with a total length of 25.8 kilometres (16.0 mi), is the longest bridge used in rapid transit systems in China.

It was extended to Tianjinzhan on 15 October 2012, connecting with the main metro network by allowing passengers to transfer to Lines 2 and 3.

[2] Train service on the whole line was suspended on 13 August 2015 after a series of massive explosions devastated the area.