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 maximise the use of survey data.
A British-built highway survey machine that measures the skid resistance of the road surface has been rated as ‘exceptional’ by the Federal Highways Administration in America. 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, has just successfully completed a trial in six US states. The SCRIM, the first road survey machine to be built for use in America, has been marked in the FHWA’s interim report as ‘exceptional’ for its quality. ...
Keynote Speaker at 2017 LJMU Annual International Conference
W.D.M. Limited’s Head of Consultancy, Mark Stephenson, will be one of the keynote speakers at the 2017 LJMU Annual International Conference on Asphalt, Pavement Engineering and Infrastructure on 22 and 23 February 2017. Mark, a Chartered Civil Engineer with more than 30 years’ experience in highway design and maintenance, will be speaking on the current practice and research into skid resistance in the UK and New Zealand. For two decades Mark worked in a large local authority in England, fulfilling a number of policy and operational roles. He joined W.D.M. Limited in 2008 and has a responsibility for...
SCRIM® reaches gold standard
A machine which revolutionised 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 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...
W.D.M. Limited will be exhibiting at the Annual Bridges Conference, on the 16th March 2017 at Ricoh Arena, Coventry. Bridges still remains the leading event for highway authority bridge engineers and their private sector partners, and continues to act as the definitive forum for all issues relating to bridge management and maintenance, policy, strategy and funding. For 25 years, the Bridges conference has driven technical knowledge, debate and discussion at the heart of Europe's bridge community. In 2017 the conference will once again focus on delivering a number of informative sessions, detailing all the latest thinking through technical sessions...
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. Fact #4: SCRIM...
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 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 overseas, 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 #12: SCRIM® uses an inertial GPS system to ensure total accuracy of its data.