Traffic Speed LiDAR
Traffic-speed LiDAR (Light Detection And Ranging) enables 3-dimensional measurements of roads and roadside infrastructure to be collected from a vehicle moving at traffic-speeds. Not only are the images highly detailed, but by combining well-established laser scanning technologies with geographical positioning systems, they are also spatially accurate. This makes it a highly valuable tool for asset inventory surveys. |
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Applications
With a single survey at traffic speed a vehicle can map the 3-dimensional structure of a road's assets without the need for closures or disruption to traffic. It offers the potential for a large range of applications such as:
- Inventory recording, in combination with forward facing imaging
- Measurement of bridge/gantry clearances.
- Inspection of earthworks and vegetation adjacent to the carriageway or track.
- Measurement of road or rail envelopes, e.g. to determine size of access or hard shoulder/edge strip size.
- Rapid 3D information to plan diversions or closures where fundamental accuracy is not essential.
- Investigation of incidents (e.g. 3D modelling at accident sites, allowing rapid reopening of route).
- Rapid provision of the framework for 3D models of tunnels, bridges etc.
- Measurement of deterioration in road and rail tunnels and bridges, and especially masonry for missing bricks.
- Barrier height measurements. It could be used alongside forward video to assess barriers.
- City centre streetscape and public realm surveys.
The LiDAR system can also be used to provide a relatively low cost solution for obtaining transverse and longitudinal measurements of unbound roads in developing countries.
For further information regarding LiDAR, please click here.
Contact:
Dean Wright
Technology Development
Telephone: +44 (0)1344 770466
Email: dwright@trl.co.uk
