S30072 TRASS Support 2026

The structural condition of the strategic road network (SRN) is one of the fundamental indicators used to both plan and budget for the annual maintenance programme. Traditional methods for the collection of routine structural condition data use devices that operate at slow speed and require lane closures. However, at the network level on the Strategic Road Network these have been replaced with a traffic-speed alternative called the 'Traffic Speed Deflectometer' (TSD). Routine network level structural condition surv...