1. Driving speed and the risk of road crashes: A review;Aarts;Accident Analysis & Prevention,2006
2. Incidenti Stradali – Anno 2017, 23 July;ACI-ISTAT,2018
3. Highway safety manual;American Association of State Highway and Transportation Officials (AASHTO),2010
4. Highway Safety Manual Supplement;American Association of State Highway and Transportation Officials (AASHTO),2014
5. Safety prediction methodology and analysis tool for freeways and interchanges;Bonneson,2012