1. Roadside design guide;AASHTO,2002
2. Revised chapter 6: median barriers, AASHTO roadside design guide (Ballot Draft);AASHTO,2005
3. Manual for assessing safety hardware;AASHTO MASH-1,2009
4. Ross Jr HE, Sicking DL, Zimmer RA, Michie JD. Recommended procedures for the safety performance evaluation of highway features. In: NCHRP report 350, transportation research board. Washington, D.C.: National Research Council; 1993.
5. Crash testing and evaluation of the WSDOT three strand cable rail system;Bullard,1996