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California MUTCD 2014 Edition Page 1136 <br />(FHWA's MUTCi7 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table SH -3. Recommended rAdvarweUtlirrrlirrg <br />Bistonce Between Signs" <br />Road Yyp2 <br />A H C <br />Urban# wapestl}- 25 mph of lese" Ion reel <br />log feel <br />loo feet <br />Urban - more than 25 mph to 40 mph"' 250 feet <br />250 feet <br />250 feet <br />Urban4tilsh* eedp-more then 40 mph"' 350 feel <br />350 feat <br />350 feet <br />Rural 500 feel <br />500 feet <br />500 feet <br />Expressway r Freeway 1,000 feel <br />1,500 feel <br />2,840 feet <br />The column headings A, B, and C are the dimensions shown in Figures 011-1 through GH -40. The A <br />dimension is file distance from the transition or point of restriction to the First sign. The B dimension <br />is the distance behveen the first and second signs. The C dimension is the distance between the <br />second and third signs. (The 'first sign" Is (fie sign in a three -sign sedges that Is cfo-sest to the T(C <br />zone. The 'third sign- is the Sign that is furthest upstream from the TTC zone.) <br />• •' Posted speed limit, off-peak 85111 -percentile speed prior to vwrk starting, or other anticipated operating spend <br />in mph. <br />Table 66-4. Forrriulas for Deterrr ming Taper Length <br />Speed (S) <br />'raper Length (L) in feet <br />WSz <br />40 mph or less <br />L= — <br />60 <br />45 mph or more <br />L= WS <br />Where: L =taper length in feel <br />W = width of offset in feet <br />S= posted speed limit, of off-peak 8501 -percentile <br />speed prior to work starting, or the anticipated <br />operating screed in mph <br />Chapter OH –Typical Applications November 7, 2014 <br />Part 6 – Tempo ary Traffic Control <br />