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ROAD SURFACE PROFILER (RSP) MARK III
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ROAD SURFACE PROFILER (RSP) MARK III - 1

ROAD SURFACE PROFILER (RSP) MARK III Dynatest Road Surface Profiler (RSP) 5051 Mark III is designed to provide advanced, automated, high quality pavement longitudinal and transverse profile measurements for engineers, construction superintendents, and pavement network managers. The RSP Mark III is capable of real time continuous highway speed measurements of longitudinal profile, International Roughness Index (IRI), Ride Number (RN), transverse profile, rut depth, macro texture, and road geometrics (crossfall, curvature and gradient), GPS data and digital photo logging.

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ROAD SURFACE PROFILER (RSP) MARK III - 2

■ MEASURING PRINCIPLE The longitudinal profile measurement is based on the “South Dakota” method. An accelerometer is used to obtain vertical vehicle body movement, and a laser sensor is used for measuring the displacement between the vehicle body and the pavement. Road profile measurements are obtained by summing the body movement with the appropriate body-road displacements. IRI is calculated in accordance with Word Bank guidelines for “Conducting and Calibrating Road Roughness Measurements”. Transverse profile and rut depth are based on a minimum of 5 lasers Road geometrics (crossfall,...

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