In some locations, you will be asked questions by the police. Therefore, it is best to carry around an official permit with you. A permit by Metro Trains Melbourne is obtainable below.
Able to take standard gauge trains and broad gauge trains from different angles. The above photo was taken from the Metro platform.
Coolaroo
Located on a curve, Coolaroo offers dramatic angles to take photos of both broad gauge and standard gauge trains. Please be careful not to be too close to the tracks.
McIntyre Loop
Here, you are able to take photos of both standard gauge and broad gauge freight trains and also XPT and some V/Line services. Photographs are possible in both directions.
Other Locations
An interactive map showing my recommended spots for photographing trains in Melbourne. Please feel free to have a look.