WDM operates a fleet of survey vehicles to provide safe, reliable and cost effective assessment of road conditions.
WDM systems link road condition data with accidents, structures, customer services, inventory, road maintenance and other data.
Equipment and Manufacturing
WDM expertise is widely recognised in the field of pavement, road and highway survey equipment design.
The WDM consultancy service was developed to help clients maximize the use of survey data.
A highway survey machine that measures the skid resistance of the road surface has been rated as ‘exceptional’ by the US Federal Highways Administration. The Sideway-force Coefficient Routine Investigation Machine (SCRIM®), manufactured exclusively by a road risk assessment and road survey company W.D.M. Limited at its base in Bristol, United Kingdom, has just successfully completed a trial in six US states. The SCRIM, the first road survey machine to be built for use in the Unites States, has been marked in the FWHA’s interim report as ‘exceptional...
SCRIM® reaches gold standard
A machine which revolutionized the way governments and highway authorities around the world monitor the safety of their roads is celebrating its 50th anniversary. The Sideway-force Coefficient Routine Investigation Machine, or SCRIM® as it’s more commonly known, is manufactured by Bristol-based W.D.M. Limited and is an example of British engineering at its very best. The first machine, which measures the wet-road skid resistance, was built for the then British Government-funded Transport and Road Research Laboratory in 1967. Since then WDM, who are the sole licensed manufacturers worldwide, have had machines operating in 18 countries. The SCRIM ...
SCRIM® celebrates 50th anniversary
To celebrate the 50th anniversary of the SCRIM® (Sideway-force Coefficient Routine Investigation Machine), we share a SCRIM fact each week during 2017. Fact #1: W.D.M. Limited celebrate the 50th anniversary of SCRIM in 2017 – it was the machine that resulted in the company first becoming involved in the highway asset management sector. Fact #2: SCRIM is an acronym for Sideway-force Coefficient Routine Investigation Machine. Fact #3: The first SCRIM came off the WDM production line in 1967. It was built for TRRL, the Transport Road Research Laboratory in the UK. Fact #4: ...
All roads lead to Rome….and Milan! New SCRIM® Survey Vehicle for Italy
W.D.M. Limited has completed the manufacture of a new Sideways-force Coefficient Routine Investigation Machine (SCRIM®) road survey vehicle for one of Italy’s largest road services companies. The new SCRIM is the second road survey vehicle that WDM has built for SINECO Spa and was loaded on to a low-loader at WDM’s Bristol works for the journey across to Milan. A team from SINECO travelled across to Bristol for training on the vehicle before it was shipped. SINECO is a limited company engaged in control and maintenance engineering...
American Trials: Reducing off-road and skid related accidents
The SCRIM® built for the FHWA in America by W.D.M. Limited, which is being evaluated by researchers at Virginia Tech Transportation Institute (VTTI), has successfully competed in a comparison trial with locked wheel friction testers in Texas. The Federal Highways Administration took delivery of the Sideway-force Coefficient Routine Investigation Machine more than 18 months ago and is now funding a project to analyze continuous stretches of pavement in six US states to determine whether improving highway materials or design could reduce crashes and save lives. More than 35,000 people die annually on America’s roads, more...
THE COMPLETE MANAGEMENT SOLUTION
W.D.M. Limited offers the complete highway asset management solution and is committed to helping improve road safety and saving lives.
The Company is the UK’s leading manufacturer and provider of highway condition surveying and monitoring WDM offers the complete highway asset management solution and is committed to helping improve road safety and saving lives. The Company is the UK’s leading manufacturer and provider of highway condition surveying and monitoring equipment, with a unique understanding of highway maintenance and road asset management, supported by unrivalled experience and technical expertise. WDM is also the UK’s largest survey contractor, serving all UK Government agencies and the majority of local authorities, and continues to develop road condition monitoring technology, set new industry standards and help clients and partners in the UK and internationally, achieve new levels of best practice in road safety.
SCRIM® celebrates 50th anniversary
To celebrate the 50th anniversary of the SCRIM® (Sideway-force Coefficient Routine Investigation Machine), we share a SCRIM fact each week during 2017.
Fact #8: WDM has built more than 80 SCRIMs since the first one rolled off the production line in 1967.