ABSTRACT
This paper evaluates the benefit of modeling safety performance functions as a function of skid resistance and other measured road surface characteristics as a tool for identifying road segments for surface treatment as a strategy for reducing friction-related crashes in one U.S. state. The case study incorporates the developed safety performance function into an economic cost-benefit analysis using friction, macrotexture, and road surface geometry measured with a Sideway-force Coefficient Routine Investigation Machine (SCRIM). Crash counts from 2010–2014, average annual daily traffic, and other additions roadway-related data were collected using state department of transportation records. The results from this research can improve our current understanding of how crashes occur, and therefore provide engineers a more effective method for identifying and mitigating crashes at high risk locations.
