References

American Association of State Highway and Transportation Officials. The Highway Safety Design and Operations Guide. Washington, DC. 1997.

American Association of State Highway and Transportation Officials. Roadside Design Guide, 4th Edition. Washington, DC. 2011 Edition including 2012 and 2015 Errata.

Transportation Research Board, National Academy of Sciences. National Cooperative Research Program (NCHRP) Report 350, Recommended Procedures for the Safety Performance Evaluation of Highway Features. 1993.

US Department of Transportation, Federal Highway Administration. Manual on Uniform Traffic Control Devices . Washington, DC. 2009 Edition including Revision 1 and Revision 2, dated May 2012. .

American Association of State Highway and Transportation Officials.  Manual for Assessing Safety Hardware (MASH). . Washington, DC. 2016 Edition including June 2022 Errata.