Suburbs in western Sydney could be connected by a light rail system after Parramatta Council announced a $1 million study to kick-start the project.

The proposed light rail line would improve access to Westmead, Parramatta city centre, Macquarie Park and have links to the University of Western Sydney and Macquarie University.

A feasibility study will kick-off next month and the council expects to select a successful tender for the project in July.

Parramatta Lord Mayor Lorraine Wearne said light rail in Western Sydney would go a long way towards relieving congestion.

It would also integrate with existing transport infrastructure such as heavy rail.