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OCT-6-2007 02:31P FROM:DEE JASPAR ASSOC 6613934799 T0:12094689324 P.4/8 <br /> California MUTCD Page 6H-5 <br /> THWA's MUTCD 2003 Revision 1,as amended for use in California) <br /> Table 6H-3 Meaning of Letter Codes on <br /> Typical Application Diagrams <br /> Road Type Distance Between Signs" <br /> A B C <br /> Urban (low speed)" 30 (100) 30 (100) 30 {100) <br /> Urban (high speed)* 100 (350) 100 (350) TOO (350) <br /> Rural 150 (500) 150 (500) 150 (500) <br /> Expressway/Freeway 300 (1,000) 450 (l.500) 800 (2,640) <br /> Speed category to be determined by highway agency <br /> '*Distances are shown in meters (feet).The column headings A, B, and C are the dimensions <br /> shown in Figures 6H-1 through 6H-46.The A dimension is the distance from the transition or <br /> point of restriction to the first sign.The B dimension is the distance between the first and second <br /> signs.The C dimension is the distance between the second and third signs.(The third sign is the <br /> first one in a three-sign series encountered by a driver approaching a TFC zone.) <br /> Table 6H-4. Formulas for Determining Toper Lengths <br /> Taper Length (L) Taper Length {L! <br /> Speed Limit {S) Speed Limit {Sy <br /> Meters Feet <br /> 60 km/h or less L= W52 40 mph or less L= -IS-2 <br /> 60 <br /> 70 km/h or more L= WS 45 mph or more L=WS <br /> 1.6 <br /> Where: L=taper length in meters (feet) <br /> W=width of offset in meters(feet) <br /> S =posted speed limit,or off-peak 85th-percentile speed prior to work starting,or the <br /> anticipated operating speed in km/h (mph) <br /> (This space left intentionally blank) <br /> Chapter 6H—Typical Applications September 26,2006 <br /> Part 6—Temporary Tragic Control <br />