Traffic speed Structural Surveys 4 (TRASS4)

National Highways is looking to appoint a supplier to deliver surveys of the strategic road network in England using a survey vehicle owned by National Highways. The surveys are to collect data on the structural condition of the road with the vehicle being operated at traffic speed.

Tenderers must have experience with conducting machine based road condition surveys at traffic speed on a live carriageway.

The Traffic speed Structural Survey (TRASS) is used to monitor the structural condition of the strategic road network in England. The survey utilises equipment operating at traffic speed to collect information on the structural condition of the network that can be used to support a range of business activities, including network maintenance requirements and network asset valuation, scheme identification and scheme design. TRASS has become an important part of the toolkit used by National Highways to manage the strategic road network. It must therefore deliver data reliably, regularly and consistently throughout the period of the surveys.

The supplier uses the equipment to carry out the TRASS survey, and applies accreditation, quality assurance and audit procedures to ensure that the data provided remains valid throughout the duration of the surveys.

The contract value is £400,000 per year with an initial period of 3 years and an optional extension period of 2 years, making a total potential value of £2,000,000