Project update December 2016
Early works have begun on the Metro Tunnel, Victoria's biggest ever public transport project.
The Metro Tunnel will free up space in the City Loop to run more trains, more often all over Melbourne. It will take three of the busiest train lines through a new tunnel under the city.
The final environmental assessment is now complete paving the way for major construction.
Design and development work has been underway since February 2015. Excavation of the huge shafts in the CBD will begin early next year.
The Metro Tunnel will mean less crowded and more reliable trains, trams and roads for Melbourne and Victoria.