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.
Railways in Melbourne
Melbourne's suburban network includes 16 electrified lines and 1 non-electrified line. Many lines have been lengthened over time, most notably the Mernda line from Epping to South Morang in 2012 and again to Mernda in 2018. Lines have also changed terminus or layout, including the forthcoming changes to the Cranbourne, Pakenham and Sunbury lines as part of the Melbourne Metro Rail Project. Numerous proposals for new lines or extensions not yet constructed have been made, including the long-outstanding Doncaster railway line and Melbourne Airport rail link.Stony Point line services operate as shuttles from Frankston station with passengers to and from Flinders Street required to change trains. It is the only non-electrified line operated by Metro Trains, with services being operated using Sprinter diesel multiple units leased from V/Line.