TRAVELLERS between Romsey, Sunbury, and Melbourne will need to review their travel plans over the summer as major works take place on the Sunbury Road upgrade.

The upgrade, adding new lanes to Sunbury Road, replaced roundabouts with traffic lights at Francis Boulevard and at Lancefield Road, walking and cycling paths, as well as duplicating the bridge over Jacksons Creek, is scheduled for completion by 2025.

Lancefield Road closed north of the Sunbury Road intersection earlier this month and is expected to re-open on February 5.

One lane in each direction will remain open on Sunbury Road, with detours through Meadows Drive, Sunningdale Avenue, Curtis Avenue and Francis Boulevard.

Heavy vehicles can plan their trips along Mongeeta and Sunbury via Riddells Creek, using Kilmore Road or Sutherlands Road, Riddell Road, and Macedon Street.

There will also be full closure of Sunbury Road over Jacksons Creek, between Francis Boulevard and Powlett Street, nightly on January 20 and 21 from 8pm to 7am, and on January 22 from 8pm to 5am.

Motorists are encouraged to visit bigbuild.vic.gov.au/sunbury for more information and to plan their journey.