The adjacent Shaoxing Metro connects the system at Guniangqiao station on Line 5, and the Hangzhou-Haining Intercity Rail connects to the system at Linpingnan Railway Station on Line 9.

[4] Shima (Xihu) The planning for a metro system in the city started in the 1990s and was about to start construction works in September 2003, but the State Council suspended construction works due to increasing costs.

[8] In January 2009, it was announced that MTR Corporation would invest in a 22 billion-yuan ($3.2 billion) / 25-year / 49% share joint venture with the Hangzhou government to operate Line 1 of the metro.

[12] By then the Hangzhou Metro network is projected to be 446 km (277.13 mi) long.

[14] On November 15, 2008, a 75-metre (246 ft 1 in) section of the tunnel near Fengqing Avenue in Xiaoshan District collapsed while under construction,[15] killing 17 people.