THE state government is considering a big rise in public transport fares in a move that could result in Melbourne passengers paying about $100 million more over the next two years alone.

The price rise was originally promised by the previous Labor government to help fund its $38 billion Victorian Transport Plan, which has been virtually scrapped by the new government.

Melbourne passengers will pay at least $46.13 million more next year if the proposed price rise proceeds. Credit:Penny Stephens

Transport Minister Terry Mulder and the Department of Transport declined to answer questions from The Age about how much extra revenue the rises might generate.

Mr Mulder also refused to rule out introducing the fare increases.