15, 2008, a section of the tunnel near Fengqing Avenue in Xiaoshan District collapsed while under construction, killing 17 people. Future expansions Under Construction Phase IV Expansion On November 14, 2022 the NDRC approved the 4th Phase Expansion plan consisting of 152.9km of new lines. Notes References External links Hangzhou Metro (official site) Urbanrail page on the Hangzhou Metro Rapid transit in China Metro Rail transport in Zhejiang Railway lines opened in 2012 2012 establishments in China Projects established in 1984