Redcliffe Road (Anzac Avenue), Gympie Road and Dayboro Road (Petrie), improve intersection

The Petrie roundabout, a major intersection providing an important connection between the suburbs of Moreton Bay region and wider transport networks, is being upgraded.

The roundabout experiences high congestion during morning and afternoon peak periods, causing significant queuing and travel delays.

Traffic demands for this intersection are growing, with significant regional and local developments such as the University of Sunshine Coast campus and ‘The Mill at Moreton Bay’, accelerating the need for greater road capacity.

The upgrade will install a signalised T-intersection with wider approaches to help ease congestion, reduce travel time for motorists and improve safety for all road users. It will also improve connectivity between key employment, industrial, educational and residential areas in the Moreton Bay region.


  • Improves safety
  • Improves network efficiency
  • Reduces peak hour congestion
  • Reduces travel time
  • Better active transport
  • Contributes to economy

Key features

  • Replacing the roundabout with a signalised T-intersection.
  • Widening Anzac Avenue and Gympie Road on approach to the intersection.
  • Providing 2 signalised right-turn lanes from Anzac Avenue to Dayboro Road.
  • Installing a left-turn slip lane from Dayboro Road to Anzac Avenue.
  • Providing 2 signalised right-turn lanes from Dayboro Road to Gympie Road.
  • Installing a left-turn slip lane from Gympie Road to Dayboro Road.
  • Providing a signalised U-turn facility on Gympie Road for local access to Mill Street.
  • Providing access to Young Street via a U-turn for motorists travelling south on Anzac Avenue.
  • Improving pedestrian and bike-riding facilities, including on-road bike lanes, shared footpaths and signalised crossings.
  • Removing the right-turn from Dayboro Road to River Street to improve traffic flow.
  • Relocating the northbound bus stop on Anzac Avenue to north of the Young Street intersection.
  • Changing access at Whites Road to become left-in and left-out only.


The Queensland Government has committed $30 million to deliver this project. Investment ID 489308

Total investment
$30 million
Queensland Government
$30 million

Current status

Construction is underway and is expected to be completed in early 2022, weather and construction conditions permitting. 
Petrie intersection upgrade map: design layout

Petrie intersection upgrade map design layout