1. FHWA. How Do Weather Events Impact Roads?. Online http://www.ops.fhwa.dot.gov/weather/q1_roadimpact.htm
2. Adverse weather conditions and fatal motor vehicle crashes in the United States, 1994-2012;Saha;Environ. Health: A Global Access Sci. Sour.,2016
3. FHWA. Analyzing Driver Behavior to Understand the Factors Contributing to Highway Crashes. http://www.its.dot.gov/research_archives/road_weather/index.htmhttp://www.fhwa.dot.gov/goshrp2/Solutions/Safety/NDS/Concept_to_Countermeasure__Research_to_Deployment_Using_the_SHRP2_Safety_Data
4. New safety data available to tackle tough safety issues;FHWA,2012
5. USDOT, Road weather connected vehicle applications, Res. Innov. Technol. Administ. http://www.its.dot.gov/research_archives/road_weather/index.htm