Prevent Wet-Weather Incidents
Identify low-friction zones before they contribute to collisions, enabling proactive interventions that keep all road users safer.
SCRIM® Surveys
Highway safety, asset performance, and cost-efficiency all depend on reliable insight.
WDM’s SCRIM® surveys deliver high-precision friction data across entire road networks-supporting smarter decisions, earlier interventions, and safer outcomes.
Optimise Your Network with Targeted Friction Data
WDM took the idea of a sideway force friction measuring principle over 50 years ago and developed technology to produce reliable and repeatable results, leading to the design of SCRIM® mechanisms manufactured and mounted onto SCRIM® survey vehicles built by WDM. We’ve been advancing the technology ever since. As the most widely adopted continuous friction measurement system worldwide, SCRIM® survey vehicles and equipment set the standard for repeatability, accuracy, and impact.
By continuously measuring surface friction and capturing geolocated texture and condition data, SCRIM® surveys empower you to monitor risk, inform policy, and invest with confidence.
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Optimise Maintenance Spend
Use accurate, real-time data to prioritise resurfacing and treatments-ensuring budgets are focused where they’ll have the most impact.
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Support Regulatory Compliance
SCRIM® helps meet national and international skid resistance standards, supporting evidence-based safety policies and audits.
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Extend Asset Life
Targeted friction data enables timely maintenance, slowing deterioration and increasing the lifespan of high-risk sections of road.
Why WDM?
We don’t just use SCRIM®-we invented it.
- 50+ years of global leadership
- Certified to national and international standards
- Trusted by national road agencies, consultants, and asset managers
- Supported by in-house engineering, R&D, and survey operations
WDM delivers the data, expertise, and confidence you need to optimise your network and protect your road users.
Book a SCRIM® Survey or Talk to Our Team
Our experts can help you integrate high-precision skid resistance testing into your road safety and maintenance strategy.
More surveying services
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SCRIM® Data
High-precision skid resistance data for safer roads
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Road Condition Monitoring
Understand how SCRIM® data integrates with texture, cracking, rutting, and IRI to give a complete picture of road health.
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Bespoke Condition Surveys
Tailored data strategies for non-standard environments, complex networks, or specific safety concerns.
