Continuous Friction Testing
Precision testing for runway safety & compliance
Maintaining adequate runway friction is essential for ensuring safe aircraft operations. ICC-IMS collects friction data using the ICC-DFT™ (formerly known as the NAC DFT) to help airports comply with FAA and ASTM E2340 standards. Our advanced testing solutions identify friction deficiencies before they become safety hazards, supporting proactive maintenance and operational efficiency.
Friction Classification & FAA Standards
A Continuous Friction Measurement Equipment (CFME) measures the peak (maximum) friction between the test tire and the pavement surface, typically occurring between 10% and 20% slip. The friction coefficient measured by a CFME is higher than sliding friction values obtained from a locked wheel friction tester, making it a more precise method for evaluating runway conditions.
During normal testing operations, the measured friction coefficient values (Mu values) are analyzed and compared to FAA standard thresholds for summer operations. These values help airport operators determine maintenance priorities and ensure compliance with safety regulations.
How Continuous Friction Testing Works
Using the ICC-DFT™, our system measures dynamic friction at 40 mph to assess pavement macrotexture—critical for aircraft deceleration and braking performance. Testing involves:
- Fixed-Slip Measurement: The ICC-DFT™ uses a 12% slip ratio to continuously monitor friction levels across the runway.
- Water Dispersion Testing: Simulated wet conditions ensure accurate assessments of hydroplaning risks.
- High-Precision Data Collection: Friction coefficient values (Mu values) are recorded in real-time, pinpointing areas that fall below FAA maintenance standards.
- Comprehensive Reporting: Friction data is visualized through detailed graphs showing the Mu value of the runway, identifying locations where friction falls below FAA standard values, helping airport operators make data-driven maintenance decisions.
FAA-Compliant Testing
Meets and exceeds FAA AC 150/5320-12C standards.
Industry-Leading Accuracy
Uses the ASTM E2340-compliant ICC-DFT™ for precise, repeatable results.
Actionable Insights
Delivers detailed reports highlighting areas requiring maintenance.
Experienced Professionals
Trusted by airports across North America for runway safety assessments.