A section of the M80 Ring Road will close each night until Thursday as part of a $518 million upgrade.
The M80 is being upgraded between Sydney and Edgars roads to improve travel times for motorists in the northern suburbs.
The road is used by 165,000 motorists daily, according to Major Road Projects Victoria.
The M80 will close Altona-bound between Sydney Road and the Hume Freeway from tonight until Thursday between 9pm and 5am each night.
A detour will be in place via via Mahoneys Road, Cooper Street, and the Hume Highway.
The upgrade includes the addition of new lanes in each direction between Sydney Road and Edgars Road; the installation of a smart freeway lane management system to better manage traffic flow; the extension of the Sydney Road on and off ramps to give drivers more time to merge; construction of new on and off ramps at Edgars Road to improve safety; improved access from the Hume Freeway to the M80 Ring Road and Edgars Road; the installation of ramp-metering technology to manage the flow of traffic onto the freeway; and upgrades to the cycling and pedestrian bridge.
Details: roadprojects.vic.gov.au/projects/m80-upgrade/sydney-road-to-edgars-road