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.

The M4SM project is an upgrade to the motorway along the main section of the M4 Motorway from Parramatta to Penrith. It involves installing new structures and technology which will work together to create a smoother, safer and more consistent travelling experience for motorists. The M4 Smart Motorway will be the first smart motorway in NSW.

Smart Motorways, also known as Managed Motorways, uses complementary technology to monitor traffic conditions, manage congestion and respond to incidents in real time.