Runway 16-34 Overlay Project
Runway 16/34 at Melbourne Airport is a 3.7 km, Category III B rating runway which has the precision approach and landing infrastructure in place to guide aircraft during low visibility conditions.
The Challenge
To support the design of pavement overlay comprising asphalt resurfacing and potential deep asphalt patches, our client required a topographical survey of the entire Runway 16-34 graded strip, 150 metres wide, plus additional extents on the cross-runway and taxiways.
Our Solution
With access limited due to the airport being operational, and to meet the data accuracy levels required, we recommend and deployed a Mobile Laser Scanning (MLS) solution. We used the Leica Pegasus: Two Ultimate Mobile Sensor Platform, incorporating two back-to-back cameras to create a 24 MP 360-degree image calibrated to the LiDAR profiler data. Traditional control surveys were also performed to ensure accuracy. Data was then processed and extracted and delivered to the client as a point cloud and 3D CAD features including a 1m x 1m grid of the pavement area.
Outcomes
- The use of MLS enabled fast, safe data capture of the runway.
- The project was performed to an absolute accuracy: Horizontal ± 10mm & Vertical ± 2mm.
- The works identified all features and levels including line marking, slab joints, existing lighting and wiring cuts, apron areas and DTMs.