Background
In Quebec, summer is the season for road work. To prioritize the work being planned, INO and Ministère des Transports have worked together to develop a 3D laser system to characterize and measure pavement rutting. This technology has proven effective, and dozens of these systems are used around the world.
Solution
This system can measure transverse profiles 4 m wide at inspection speeds of up to 100 km/h. It uses two laser profilometers that digitize the shape of the pavement. A customized optical configuration and high-power pulsed laser projectors allow the system specially designed by INO to operate day or night. Road profile data is collected and processed in the vehicle and can then be compressed and stored with a GPS time stamp. This system makes it possible to optimize management of road maintenance budgets and improve safety through better road surface maintenance.