Senator Scott Ludlam has challenged the next State Government to construct a light rail system linking Perth's metropolitan suburbs to meet affordable transport needs and address climate change.

"The value of good public transport services is evident in the changing land values along the new rail line. The Greens want to ensure people living in the suburbs are well served and protected from petrol price shocks by expanding public transport options for everyone, not just the wealthy inner suburbs," Senator Ludlam said.

A light rail network proposed by the Greens includes services that would link Perth's residential suburbs to the major train lines (see full report and map attached), although are looking to conduct extensive consultation with local councils and communities before finalising the routes.