The Complete Management Solution

Road Assessment Vehicles (RAVs) carry out high speed data acquisition and recording of surface conditions, including automatic recognition of surface cracking. This gives performance indicators to enable maintenance work to be prioritised and National Indicators to be calculated.

WDM® has been undertaking high speed data acquisition surveys since the late 1980’s and has been using RAVs, which include the automatic measurement of cracking, since 2000. Over that period the Company has developed expert knowledge and skills to undertake the surveys quickly, but safely, and to process and deliver the data accurately to agreed timescales.

Helping to lower accident rates by identifying where there is a risk of wet-road skidding.

Since the mid-70’s Highway Authorities have used the Sideway-force Coefficient Routine Investigation Machine (SCRIM®) method to indicate those lengths of road where the skid resistance is below investigatory levels*

The standards are based on over 30 years of research and have been shown to correlate strongly with the excessive risk of wet road skidding accidents.

Recent studies in England Scotland Wales and New Zealand have confirmed that the current standards published in 2004 are highly cost effective as well as appropriate to current traffic flows, road conditions and materials.

Studies in both the United Kingdom and in New Zealand have shown that introducing a wet road skidding policy will reduce accidents by between 30 and 40% over and above the results of other safety improvement programmes.

The introduction of regular SCRIM® surveys together with a skid policy based on the current standards offers a very cost effective option for local authorities to achieve and maintain reductions in their road casualty rates.