Compléter Fill the Gaps - TRB 2024Version en ligne A fun game to test your knowledge of Continuous friction measurement by filling in the missing words. par Holly Wickham 1 continuous occasional routine Basic : Because pavement friction can vary significantly , friction measurements provide richer safety and materials analysis insights . 2 network project Basic : SCRIM provides both and / segment level friction data . 3 36 30% Basic : Systemic friction management using SCRIM can deliver crash reductions with a benefit - cost ratio of : 1 . 4 Weather friction Traffic Crash Risk : & are often the two strongest predictors of crash risk . 5 size road space Crash Risk : Effect analysis is a method of evaluating the relative importance of variables in SPF calculation . 6 friction speeds enhancements lower Crash Risk : Sharp ( low radii ) curves are an opportunity for safety countermeasures such as & . 7 friction macrotexture Crash Risk : Moderate curves may benefit more from improvements than from improvements . 8 geometry traffic Lifecycle : Pavement friction deterioration is driven by & . 9 decrease increase Lifecycle : Pavement friction tends to for a period of time after installation as more of the aggregate surface becomes exposed . 10 4 3 5 Lifecycle : Friction deterioration tends to follow one of curves . 11 lower higher Lifecycle : Effective binder content is relatively more important in prediciting for road segments with RAP content when compared to road segments with RAP content . 12 Binder content Lifecycle : is the mix design volumetric with the highest overall impact on a predicted friction value . 13 retexturing Treatment Types : Depending on underlying aggregate type , can increase pavement friction and texture for 2 - 4 years . 14 traffic volume Treatment Types : Pavement macrotexture enhancements demonstrate longer performance when is low . 15 HFST Treatment Types : can sustain friction supply >65 MSC for 7 + years , even where polishing forces are greatest . 16 reduction increase Treatment Types : Speed can provide effective friction improvements equal to 10 MSC .
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