1. American Association of State and Highway Transportation Officials, Highway Safety Manual, First Edition, AASHTO, Washington DC, 2010.
2. American Association of State and Highway Transportation Officials, Highway Safety Manual, First Edition, 2014 Supplement, AASHTO, Washington DC., 2014.
3. R. Srinivasan, D. Carter, K. Bauer, Safety Performance Function Decision Guide: SPF Calibration vs. SPF Development, FHWA, The University of North Carolina Highway Safety Research Center, NC, USA, 2013.
4. R. Srinivasan, K. Bauer, Safety Performance Function Development Guide: Developing Jurisdiction- Specific SPFs. Report FHWA-SA-14-005. FHWA, The University of North Carolina Highway Safety Research Center, NC, USA, 2013.
5. G. Bahar, E. Hauer, User’s Guide to Develop Highway Safety Manual Safety Performance Function Calibration Factors. Project No. HR 20 — 7(332). National Cooperative Highway Research Program (NCHRP), NAVIGATS Inc., Washington DC, USA, 2014.