Aerial view of M4 motorway

M4 Smart Motorway project

The NSW Government is investing $600 million to build the M4 Smart Motorway project, which will introduce intelligent technology to the M4 Motorway between Pitt Street, Parramatta and Mulgoa Road, Penrith.

Latest news

DEC 2020

DEC 2020The M4 Smart Motorway turned on

The smart motorway trial has been successfully completed and all of the intelligent technology has been turned on permanently. See the media release for more information.


To assist with the flow of traffic on the motorway, ramp meters have been installed on entry ramps for the M4 Motorway. This installation has meant that traffic flows consistently onto the motorway reducing the gaps for cyclists to cross over. For the safety of cyclists they should continue to use the alternative route that has been in place since 2017 for travel between Penrith and Parramatta, as their permanent route to the M4. For more information about where this route is located please see the map.

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Media releases

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14 December 2020

Sydney's first smart motorway given the green light

23 November 2020

All systems go for State's first smart motorway



Contact us

If you have any questions or concerns about the project, please contact us by:

Phone: 1800 989 929


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