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Heat Mitigation Trial
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, a number of heat mitigation methods will be trialled to improve the liveability and comfort in the city for residents, businesses and visitors.
About the project
Heat mitigation initiatives will be trialled in 5 zones along Cavenagh Street, between Bennett and Knuckey Streets.
- 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.
Works involved in this project are anticipated to have minimal disruptions to road users and pedestrians. This is because a majority of work to construct the shade structure will take place off site
Installation of the support footings and modifications to the median strip will be carried out during general work hours.
Access around immediate works will be restricted for the safety of workers, road users and pedestrians. This includes car parking spaces and foot paths.
Significant road disruptions, including the closing of Cavenagh Street will be programmed to take place during night hours only. During the closures, foot traffic will be permitted, however this may be limited to one side of the street.
Neighbouring residents will experience an increase of construction noise and where possible will be kept to a minimum.
A construction lay down area will be established outside Palm Court. There will be strictly no public access to this location.
Over the 21 weeks construction period a reduced speed limit will be in place for safety reasons.
Cavenagh Street, between Bennett Street and Knuckey Street
What’s happening now
The Department of Infrastructure, Planning and Logistics have awarded the Shade Structure Project ( Zone 2 ) to the PTM Group and expect work on site to commence on or about the 13th of June.
Design and documentation of Zones 3, 4 and 5 is expected to be completed by Mid June, and issued for tender shortly after.
Construction of the shade structure is scheduled to run for 21 weeks.
Face to face meetings with business owners and residents took place late February. The concept and planned construction of the shade structure was well received and stakeholders are looking forward to the benefits of the trial.
True North Strategic Communication
Phone: 08 8981 6445
Last updated: 17 May 2018