Quality Testing Measuring Principle:
The longitudinal profile measurement is
based on the "Dakota" method. An accelerometer is used to obtain
vertical vehicle movement, and a laser sensor is used for measuring
displacement between the vehicle body and pavement. Road profile
measurements are then obtained by separating the body movement with
the appropriate body displacements. IRI is calculated in accordance
with World Specifications. The Measured longitudinal profile meets
the Class 1 profile and bias specifications as defined by ASTM
The Dynatest Road Surface Profiler (RSP) is
carefully designed to provide an advanced, automated, high-quality
pavement roughness and related measurements solution for engineers
nationwide. The RSP is capable of real-time continuous
highway-speed measurements of longitudinal profile (International
Roughness Index (IRI) and Ride Number (RN)), transverse profile,
bumps, profile index (PI) number, rut depth, faulting, macro
texture and geometrics (cross-fall, curvature and gradient).
Measurements can be referenced with linear chainage or GPS,
allowing easy integration to GIS.
Advantages of Using
• Guaranteed high accuracy
according to rigorous standards.
• All indices are computed in
• Measurements taken at all traffic
• Data collection in urban areas with
"stop and go" feature.
• Easy calibration feature.
• Dynatest worldwide support
• Designed by pavement specialists.