State Practices to Reduce Wet Weather Skidding Crashes

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Section 1.0 – Introduction and Background >>

Abbreviations

AASHTO – American Association of State Highway and Transportation Officials

AWI – Aggregate Wear Index

ASTM – American Society for Testing and Materials

CAR – Crash Analysis Reporting

CRASH – Crash Reduction Analysis System Hub

CRF – Crash Reduction Factor

DOT – Department of Transportation

FARS – Fatality Analysis Reporting System

FHWA – Federal Highway Administration

FN – Friction Number

HFST – High-Friction Surface Treatment

HRTIS – Highway Traffic Records Inventory System

HSIP – Highway Safety Improvement Program

IFI – International Friction Index

NCDC – National Climatic Data Center

NCHRP – National Cooperative Highway Research Program

NTSB – National Transportation Safety Board

OGAC – Open-Grade Asphalt Concrete

PCC – Portland Cement Concrete

PDO – Property Damage Only

PIL – Priority Investigation Location

PWAH – Potential Wet Accident Hotspot

SHSP – Strategic Highway Safety Plan

SKARP – Skid Accident Reduction Program

SN – Skid Number

Sp – Speed Gradient

TRB – Transportation Research Board

TASAS – Traffic Accident Surveillance and Analysis System

VMT – Vehicle Miles Traveled

VTRC – Virginia Transportation Research Council

WARP – Wet Accident Reduction Program

WSF – Wet Safety Factor

<< Table of Contents

Section 1.0 – Introduction and Background >>