Metro Tunnel
The Metro Tunnel (sometimes also known as the Melbourne Metro Rail Project or the Metro Rail Capacity Project) is a metropolitan rail infrastructure project currently under construction in Melbourne, Australia. It includes the construction of twin 9-kilometre rail tunnels between South Kensington station (north west of the Melbourne City Centre) and South Yarra (in the south east) with five new underground stations. The southern portal for the tunnel is to be located to the south of South Yarra station. As a result, the tunnel will connect the Pakenham and Cranbourne lines with the Sunbury line, and allow these lines to bypass Flinders Street station and the City Loop while still stopping in the Melbourne central business district.
Mumbai Metro
In November 2018, the MMRDA cleared the Metro 11, which connects Wadala with CSMT. This would be considered to be an extension to Metro 4. The length of the line is 11.4 km, and it proposed to cost Rs. 8,739 crore (US$1.207 billion). The line will be partially underground, with 8 underground and 2 elevated stations.