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.
TM2 US Trials
The WDM® texture meter, the TM2, took part in Network Level Macrotexture Measurement Equipment trials in the USA. The ‘rodeo’ style trials were held at Virginia Tech Transportation Institute in Blacksburg. The various machines were first tested against accurate material targets with different profiles and then over several routes on the Institute’s test road, with varying materials. The TM2 uses a transversely mounted laser to measure the road surface to calculate sensor measured texture depth (SMTD) and mean profile depth (MPD) and delivers raw data on a grid of 1mm x 1mm. Machines from Australia...
USDOT Release Fatal Crash Data Report
A report outlining fatal crash data for the year 2016 has been released from the U.S Department of Transportation’s National Highway Traffic Safety Administration. The U.S Department of Transportation’s National Highway Traffic Administration released fatal traffic crash data for the calendar year 2016. The data collected proved that there is an increase in the number of lives lost on U.S roads, an increase of 5.6% compared to the previous year (2015). The 3 largest killers stated in the report are as follows: 1. Drunk driving deaths (10,497 fatalities) – saw an increase of 1.7%. 2. Unbelted deaths (10,428 fatalities) – saw an increase...
A road survey vehicle that measures the skid resistance of the road surface has been rated as ‘exceptional’ by the US Federal Highways Administration. The SCRIM® road survey vehicle manufactured exclusively by a road risk assessment and road surveying 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 surveying machine to be built for use in the Unites States, has been marked in the FHWA’s interim report as ‘exceptional’...
SCRIM® reaches gold standard
A road surveying vehicle which revolutionized the way governments and highway authorities around the world monitor the safety of their roads is celebrating its 50th anniversary. The SCRIM® road survey vehicle is manufactured by Bristol-based W.D.M. Limited and is an example of British engineering at its very best. The first road surveying 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 road surveying machines operating in 18 countries. The SCRIM machine...
High Friction Surfacing Seminars
The Road Surface Treatment Association** (RSTA) is a British association for the road surface maintenance industry. The association is organizing two seminars to highlight the benefits of using High Friction Surfacing (HFS) and dispel some myths around durability and using high PSV asphalt. The first seminar will take place on September 27th 2017 at Old Trafford Football Stadium in Manchester, United Kingdom. It will include a presentation from Mark Stephenson, head of Consultancy Services at W.D.M. Limited, who’ll explore the relationship between SCRIM® and accident rates on high risk sites and the use...
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 a 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® has built and successfully tested the first SCRIM road survey machine for use in the United States, which has been marked as “exceptional” in quality by the US Federal Highways Administration.
UK based WDM® is the country’s largest survey contractor, serving all UK Government agencies and the majority of local authorities. We continue to develop road condition monitoring technology, setting new industry standards and helping clients and partners internationally achieve new levels of best practice in road safety.
SCRIM® celebrates 50th anniversary
To celebrate the 50th anniversary of the SCRIM® road survey vehicle, we shared a SCRIM fact each week during 2017.
Fact #52: In 1990 WDM® was the first to have traffic management employed when SCRIM® measured surface friction of roads in Singapore. Police outriders stopped traffic at junctions to allow the survey to continue without interruption.