Sydney is hurtling towards an unsolvable transport crisis if job growth in western Sydney continues at the same rate as it has for the past decade, a new report says.

There will be a jobs deficit of more than 300,000 and nearly half a million people – mostly professionals travelling long distances – will be forced to leave western Sydney each day to get to work by 2036 if things continue the way they are.

A new report says Sydney will be "strangled" by congestion if more jobs aren't created in western Sydney.

This is the grim projection made in the Western Sydney University report, which says Sydney will be "strangled" by congestion on roads, trains and buses, a loss of productivity and rising costs if nothing much changes.

"Global Sydney will suffocate," the report's author Professor Phillip O'Neill, director of the Centre for Western Sydney, said.