Trains will make the trip from Melbourne to Geelong in just 35 minutes regardless of who wins November's Victorian state election, after Labor matched the coalition’s promise for high speed rail.

Having committed $50 million in May's budget to investigate high speed rail, Premier Daniel Andrews has promised to invest an extra $100 million to plan for the full separation of metropolitan and regional services on the Geelong and Ballarat lines.

Labor's plan would see two extra tracks built alongside existing lines to Melton and Wyndham Vale to carry metropolitan trains; allowing for regional services to run express.

remier Daniel Andrews has promised to invest an extra $100 million to plan for the full separation of metropolitan and regional services on the Geelong and Ballarat lines. (Supplied)

The Wyndham Vale tracks could be continued to Werribee, to form the western section of the promised $50 billion Suburban Rail Loop, with construction to start in 2022.

Labor is also considering the full electrification of the Geelong and Ballarat lines, and the introduction of new electric regional trains.

Premier Daniel Andrews said the plan would reduce travel times and help take cars off roads.

Premier Daniel Andrews said the plan would reduce travel times and help take cars off roads. (Nine)

"This plan will deliver the transformation that our state needs," he said.

"Electrification of rail lines out to the west, and fast rail to Geelong and Ballarat, returning country rail to country communities."

"Only Labor can be trusted to build the regional public transport we need for the future."

He estimates the project would take around a decade to complete.

Liberal Leader Matthew Guy had previously promised a slightly faster trip from Geelong. (AAP)

Liberal Leader Matthew Guy had previously promised a slightly faster trip from Geelong, saying trains could make the trip in 32 minutes.

He also wants to introduce new double-decker trains, to help increase capacity.