Characterising the measurements made by sideways-force skid resistance devices

Published: Jan 2021

ISBN: 978-1-913246-90-7

Author: P D Sanders

Pages: 49

Reference: PPR980


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The effective management of road surface skid resistance is critical in providing a safe means of road travel. The measurement of skid resistance is a key component in the effective management of road surface skid resistance. In the UK the skid resistance properties of the trunk road network are assessed annually using devices utilising the sideways-force measurement principle, the Sideways- force Coefficient Routine Investigation Machine (SCRIM).

Currently, the fundamental measurement characteristics of SCRIM, its percentage slip and operational velocity, are not known. This document presents the results of an experimental study which characterises the measurement properties of SCRIM in terms of percentage slip and operational velocity.

"SCRIM" is a registered trade mark of WDM. 

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