PLANS by Infrastructure NSW to continue moving hundreds of thousands of people from Sydney's west to east every day are unsustainable, experts warn.
"I think the most extraordinary thing about the report is its major plans for western Sydney take place in eastern Sydney," Professor Phillip O'Neill from the Urban Research Centre said.
"They seem to be of the view that the only future for 2 million-plus people in western Sydney is to find jobs in eastern Sydney."
The State Infrastructure Strategy 2012 — 2032 report is heavily focused on building roads rather than rail or dedicated bus corridors.
Dr O'Neill said government rhetoric about decentralising Sydney to regional centres in Parramatta, Liverpool and Penrith had not been put into plans.
Dr Awais Piracha from the University of Western Sydney's Geography and Urban Studies department said rail lines such as Parramatta to Epping would be more efficient than the proposed WestConnex motorway.
"Historical experience says roads and highways are really not very helpful," he said.
"The capacity of a motorway is about 5000 people per hour and on a railway it is up to 50,000 people per hour.
"You build a motorway and within a few years the capacity is fully utilised."