Transport Canberra and City Services

Gundaroo Drive duplication stage 1

Roads ACT identified the duplication of Gundaroo Drive as an upgrade requirement to improve safety, ease increasing congestion in the Gungahlin region, and manage traffic growth.

Stage 1 duplication works involved the construction of a second carriageway on Gundaroo Drive from Gungahlin Drive to the Mirrabei Drive/Anthony Rolfe Avenue roundabout. This section of the road was prioritised due to accident trends and key areas of congestion.

Duplication of this section of the road will improve safety and relieve congestion in the growing Gungahlin region. On-road cycle lanes have been provided including safe passage around the two roundabouts on this section of road. Public transport will also benefit with the upgrade to the intersection of Gundaroo and Gungahlin Drives including priority lanes for buses travelling in both directions along Gundaroo Drive.

This project was expanded to include a new signalised intersection at Gundaroo Drive and Mirrabei Drive/Anthony Rolfe Avenue and an additional southbound lane on Mirrabei Drive from Paul Coe Crescent. This will improve safety for pedestrians and cyclists. There are three main active travel community routes and an increasing demand for pedestrian and cyclist access to the nearby Yerrabi Pond District Park which have prompted the need to replace the existing roundabout with a safer alternative. The project has removed the roundabout, widened the four vehicle approaches to the intersection and provided a four way signalised intersection with full pedestrian provisions. The project has also included the construction of a second southbound lane on Mirrabei Drive from Paul Coe Crescent to Gundaroo Drive. This lane provides the additional capacity that is required during the morning peak for vehicles turning right onto Gundaroo Drive.

Report on the delivery of the Gundaroo Drive stage one duplication

Transport Canberra and City Services commissioned an independent report into the delivery of the first stage of the Gundaroo Drive duplication (PDF 3.3MB) from Gungahlin Drive to Anthony Rolfe Avenue/Mirrabei Drive.

The report reviewed the delivery of the Gundaroo Drive stage one duplication. The lessons from the report have already been adopted to ensure the second stage of the project does not face any similar hurdles.

A key conclusion of the report related to utilities management and this equated to around 75 per cent of the project’s delay. Other factors in the delay were the ACT Government decision to increase the project’s scope to signalise the Mirrabei Drive, Gundaroo Drive and Anthony Rolfe Avenue intersection and wet weather, respectively equating to around 14 per cent and 11 per cent of the delay.

The recommendations and lessons learnt from the report are being effectively addressed in the Gundaroo Drive stage two duplication. Stage two began in mid-2018 and will provide two lanes in both directions between Gungahlin Drive and the Barton Highway.

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We acknowledge the Traditional Custodians of the ACT, the Ngunnawal people. We acknowledge and respect their continuing culture and the contribution they make to the life of this city and this region.

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