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California MUTeD 2014 Edition(FHWA's MUTCD 2009 Edition,including Revisions 1 &2,as amended for use in Califomia) <br />Table 6H.3.Recommended Advance Warning Sign Mil'lill'ltlll'l'Spacing <br />Road Type <br />Distance Between Signs- <br />A B I c <br />iUr~~_n{!:e-/,.q~.~'~~r~2S'ftipfl Of less~w"100 reet 1oo"reet 160 ieet <br />Urban -more than 25 mph to 40 mph""'"2S0feet 250 feel 250 feet <br />Urban~higt;J '513888')-more than 40 mph •.•.•,350 feet 35'0 fee't 350 'feel <br />Rural 500 feet 500 feet 500 feet <br />'~pt~ssWMj'F'eeway.l.UOO,ieet 1,500 feel 2,640\eel <br />•Spend n"oQcC)I b "htP'miQpd br Ibg hOBbits;:'8Q'VY' <br />..•.•.The column headings A,B.and C are the dimensions shO\'In in Figures 6H-1 through 6H-46.'The A <br />dimension is the distance'from the transition or point of restriction to the first,slgn.The B.dimension <br />is the distance between the first and second signs.The C dimension is tbe distance 'b~tween the <br />second and third signs.(The "'first sign"is the sign in a three.sign sei'ies.-ihafis closest fo the TIC <br />zone.The "third .sign~is the sign that is furthest upstream frain-the TIC zone.) <br />•.••.Posted speed limit;ciff-peal<85th~percentile speed prior to work starting,or other anticipated operath19 speed <br />in mph. <br />Table6H-4.Formulas for Determining Taper Length <br />Speed (S)Taper Length (L)in feet <br />WS'40 mph or.!ess L=--60 <br />45 mph or more L=WS <br />Where:L =taper lenglh infeel <br />W '"width of offset in feetS=posted speed limit.or off-peak 85th.percentilespeedprior10workslarting.or the anticipated <br />operating.spi:!ed in mph <br />Page 1136 <br />Chapter fiR -Typical Applications <br />Part 6 -Tempormy Traffic Control <br />Novemher 7,2014