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California MUTCD 2014 Edition Page 1139 <br /> (FHWA's MUTCD 2009 Edition,including Revisions 1 &2,as amended for use in California) <br /> Table 6H-3. Recommended Advance Warning Sign M+Wff*w&Spacing <br /> Distance Between Signs" <br /> Road Type <br /> Murray Urhan�ler.epsee*}- 25 mph or less••• t0ofeet 1001b8! 110O t <br /> Street Urban-more than 25 mph to 40 mph"' 250 feet 250 feet 250 feet <br /> Urban -more than 40 mph"' 35011M 350 bet 360feet <br /> Rural 500 feet 500 feet 500 feet <br /> Expressway Freeway — I.Ow fee: I 1,5001f9et 2,940 feet <br /> The column headings A.B,and C are the d;mensions shown in Figures 6H-1 through 6H-46. The A <br /> dimension is the distance from ibe transition or point of restriction to the first sign. The B dimension <br /> is the distance between the first and second signs The C dimension is the distance between the <br /> second and third signs. (The'first sign-is the sign in a thtee-sign series that is closest to the TTC <br /> zone. The'third sign-is the sign That is furthest upstream from me TTC zone) <br /> Posted speed limit,off-peak 85th-percentile speed prior to work starting,or other anticipated operating speed <br /> in mph <br /> Table 61-1-4. Formulas for Determining Taper Length <br /> Speed(S) Taper Length(L)in feet <br /> WS2 <br /> 40 mph or less L= <br /> 60 <br /> 45 mph or more L= WS <br /> Where: L =taper length in feet <br /> W =width of offset in feet <br /> S =posted speed limit,or riff-peak 85th-percentile <br /> speed prior to work starting,or the anticipated <br /> operating speed in mph <br /> Chapter 6H-Typical Applications November 7,20t4 <br /> Part 6-Temporary Traffic Control <br />