Appendix A. References

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2. A Policy on Geometric Design of Highways and Streets, 6th Edition, American Association of State Highway and Transportation Officials, Washington, D.C., 2011.
3. Warrants for the Installation and Use of Technology Devices for Transportation Operations and Maintenance, FHWA ENTERPRISE Pooled Fund Study, http://acconsultants.org/itswarrants/forms/vsl.html (accessed on April 17, 2012).
4. Lunenfeld, H. and G.J. Alexander, A User's Guide to Positive Guidance, 3rd Edition. U.S. Department of Transportation, Federal Highway Administration, Washington, D.C., September 1990.
5. Traffic Engineering Handbook, 6th Edition, Institute of Traffic Engineers, Washington, D.C., 2009.
6. Campbell, J.L., C. M. Richard, and J. Graham, Human Factors Guidelines for Road Systems. NCHRP Report 600A, Transportation Research Board of the National Academies, Washington D.C., 2008.
7. Highway Statistics 2010, Licensed Drivers, Vehicle Registrations, and Resident Population (In Millions), U.S. Department of Transportation, Federal Highway Administration, Washington, D.C., https://www.fhwa.dot.gov/policyinformation/statistics/2010/ (accessed on April 17, 2012).
8. Potts, I., J. Stutts, R. Pfefer, T. R. Neuman, K.L. Slack, and K.K. Hardy, NCHRP Series 500 Guidance for Implementation of the AASHTO Strategic Highway Safety Plan. Volume 9: A Guide for Reducing Collisions Involving Older Drivers, Transportation Research Board of the National Academies, Washington D.C., 2004.
9. Wet Weather Accident Reduction Program (WWARP), Texas Department of Transportation, Austin, Texas, 2006.
10. Hall, J.W., K.L. Smith, L. Titus-Glover, J.C. Wambold, T.J. Yager, and Z. Rado, Guide for Pavement Friction, NCHRP Web-Only Document 108, Transportation Research Board of the National Academies, Washington D.C., 2009.
11. 2009 Manual on Uniform Traffic Control Devices, Federal Highway Administration, U.S. Department of Transportation, December 2009, http://mutcd.fhwa.dot.gov/.
12. Survey of Speed Zoning Practices, Institute of Transportation Engineers, Washington, D.C., 2001.
13. Shadle, S.G., L.H. Emery, and H.K. Brewer, Vehicle Braking, Stability, and Control, SAE Transactions, Vol. 92, paper 83062, 1983.
14. Mannering, F.L. and S.S. Washburn, Principles of Highway Engineering and Traffic Analysis, Fifth Edition, John Wiley & Sons, Hoboken, NJ, 2013.
15. Systems Engineering for Intelligent Transportation Systems: An Introduction for Transportation Professionals. Federal Highway Administration, U.S. Department of Transportation, January 2007, http://ops.fhwa.dot.gov/publications/seitsguide/seguide.pdf.
16. Systems Engineering Guidebook for ITS, V3.0, Federal Highway Administration, U.S. Department of Transportation, January 2007, https://www.fhwa.dot.gov/cadiv/segb/views/document/sections/Section8/8_4_12.htm.
17. Uniform Vehicle Code. National Committee on Uniform Traffic Laws and Ordinances.
18. Judicial Enforcement of Variable Speed Limits, Legal Research Digest No. 47, National Cooperative Research Program, March 2002, http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_lrd_47.pdf.
19. Best Practices for Road Weather Management, Version 2.0, U.S. Department of Transportation, Federal Highway Administration, Washington, D.C., May 2003, http://ops.fhwa.dot.gov/weather/best_practices/CaseStudiesFINALv2-RPT.pdf (accessed May 31, 2012).
20. South Carolina: Decrease Hydroplaning on US 25 in Greenville County, University of Minnesota Rural Highway Safety Clearinghouse, http://www.ruralsafety.umn.edu/clearinghouse/rsip/southcarolina/ (accessed March 28, 2012).
21. "Wyoming Department of Transportation Policy Memorandum: Variable Speed Limit," Wyoming Department of Transportation, GIS/ITS, Cheyenne, WY, February 16, 2011.