1. The Highway Safety Manual;AASHTO,2010
2. A Policy on Geometric Design of Highways and Streets;AASHTO,2018
3. Development of Accident Reduction Factors. KTC-96-13;Agent,1996
4. Safety evaluation of permanent raised pavement markers;Bahar,2004
5. Pavement Marking Materials and Markers: Real-World Relationship Between Retroreflectivity and Safety Over Time, NCHRP Web-Only Report 92;Bahar,2006