Heat mitigation trial - Zones 1 to 5
This project is now complete.
The Northern Territory Government is trialling a series of initiatives that will help reduce the impact of heat in our tropical city and rejuvenate Darwin’s CBD.
A heat mapping study undertaken in the Darwin CBD demonstrated high level surface temperatures exceeding 60 degrees in a few locations, including Cavenagh Street.
Over an 18 month period, five zones of heat mitigation methods will be trialled along Cavenagh Street, between Bennett and Knuckey Streets.
- Stage 2 Fact sheet – February 2019
- Stage 2 works commence – Fact sheet – January 2019
- More jobs, cooler city: Another step for Cavenagh Street, Civic and State Square projects – Media Statement – November 2018
- Cooler City, More Jobs: Cavenagh Shade Structure Construction Complete – Media Statement – November 2018
- Revitalising Darwin CBD: Cavenagh St Shade Structure Contract Awarded – Media Statement – May 2018
Five zones of heat mitigation methods
- New turning lane
- New landscaping
- New pedestrian shade structures at each corner
- New vine growth to the boundary fence of corner vacant block
- Works completed in Zone 1 are being managed and delivered by the City of Darwin and complement the heat mitigation trial.
Construction of a shade structure
- Construction of new light-weight framed structure to enable vegetation growth for shade
- Removal of the existing central median strips
- Misting to the underside of the structure will help improve thermal comfort
- New up lighting at central vine locations
- Power and water connections in median strip to allow for future events, such as markets
- Vine planter and irrigation in central median
- Clearance for vehicles and re alignment of parking; and
Cool Surface Treatments/Small Shade Structures
- Two new pedestrian / shared zone crossings to align with the existing arcades
- New cool, reflective pavement coating to road surface between the crossings; and
- Standalone shade structures on both sides of pedestrian crossings. Note: car parking numbers are not affected due to new angle of parking
- A combination of established trees in large relocatable planters, and smaller vegetation planters to provide up to 20 per cent canopy cover
- Informal pedestrian nodes such as seating and shaded waiting areas; and
- New landscaped traffic islands to provide shade to car parking and passively slow vehicle movements. Note: car parking numbers are not affected due to new angle of parking.
Intersection Upgrade at corner of Knuckey and Cavenagh Streets
- Two new established shade trees on intersection corners where there are currently none; and
- A new cool, reflective crossing surface.
- As part of this project, government have investigated options to increase parking capacity along Cavenagh Street. By increasing the current parking angle 10 degrees, there will be an additional 3 parking spaces, providing 117 parking spaces between Bennett and Knuckey Streets.
Last updated: 08 February 2019
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