http://mutcd.fhwa.dot.gov/pdfs/2003r1/pdf- index.htmManual on Uniform Traffic Control Devices (MUTCD), 2003 Edition, including Revision 1, U.S. Depart- ment of Transportation, Washington, DC, November 2004 (MUTCD, 2003).U.S. Manual on Uniform Traffic Control Devices (MUTCD)....