the ENGINEER, 19 June 2012
US researchers have developed a system that automatically detects and seals tarmac cracks as it moves along a road.
The prototype trailer device, built by engineers at the Georgia Tech Research Institute (GTRI), is able to detect and fill cracks as small as 0.125in (3.2mm) over an area of road around 1ft (30cm) wide from a vehicle moving at 3mph (5km/h).
