Abstract
Porous friction courses (PFCs) are surface layers of open-graded hot-mix asphalt used to improve wet-weather safety. This paper reports results of analyses done to investigate the safety benefits of PFCs under wet conditions. A number of sections from across Texas constructed between 2003 and 2011 were evaluated. Accident rates on these sections using data from the Crash Records Information System (CRIS) were compared before and after construction of the porous surface. Inconsistencies in the CRIS wet-weather accident data prompted the use of weather station information from around Texas to more accurately identify weather conditions at the time of accidents. This information clearly indicated the benefits of PFC in reducing accidents, injuries and fatalities on roads in Texas, encouraging the continued use of these mixes. A slight but consistent increase in accidents immediately following construction of porous asphalt surfaces was also observed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
