Labor has pledged to trial satellite car parks as part of plans to add an extra 17,000 parking bays around the rail network in the next eight years.
Opposition leader Mark McGowan this morning said Labor was committed to easing the congestion crisis.
He said as part of its $3.8 billion Metronet rail plan, it would build about 750 car parking bays at each new station excluding Perth Airport.
It would also include "super" car parks at some outer stations such as Atwell with up to 2000 bays.
However, he said Labor government would also trial satellite car parks based away from train stations where commuters can park and use regular bus feeder services to take them to a train station.
The first trial would involve using 1500 of 2000 existing parking bays at the Kingsway Regional Sporting Complex during weekdays.
The feeder bus service would take commuters to Greenwood station, about 5km away.
Mr McGowan, who said he had spoken to the City of Wanneroo, which runs the complex, about the trial, said there were opportunities to roll out satellite car parks elsewhere, though he did not name any other options.
"WA Labor will work with local councils to identify suitable locations and develop bus links to service the car parks to help commuters to use the METRONET rail network," he said.
Mr McGowan said the satellite car park would have CCTV and offer some fenced parking with the price of parking to be in line with existing policies.
The car parks would cost about $700,000 a year to run with the cost of satellite car parks included in its $3.8 billion cost for five priority projects under Metronet.
"Bringing people in on buses from satellite car parks using high frequency buses will avoid congestion by removing up to 50 cars for each bus," he said.