The worlds second TSD was delivered to Highways Agencies in UK
Greenwood Engineering delivered the worlds second Traffic Speed Deflectometer to Highways Agencies in UK.
They have continuously contracted with TRL to develop the framework and quality control for network operations. With the TSD experience TRL participates in several international projects like TRIMM and SHRP2. TRL took iniative to the DARTS forum (Deflection at Road Traffic Speed) for users of devices measuring pavement deflections at traffic speeds.