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California MUTCD 2014 Edition Page 113G <br />(FHWA's MUTCD 2000 Edition, including Revisions 1& 2, as amended for use in California) <br />Tante 6rs1-3. Reco3nrr1endecl Advat-we Wgirning Sig I <br />Poad T <br />-type <br />A <br />uisiance HeiWeen signs" <br />I S I <br />C <br />Urban•IFeserctzaed}- 25 mph of less"' <br />100 reel <br />100 Feet <br />100 feet <br />Urban -more than 25 mph to 40 mph", <br />250 feet <br />250 feet <br />250 feet <br />Urbanmore then 40 mph" <br />350 feel <br />350 feet <br />350 feel <br />Rural <br />500 feel <br />500 feet <br />500 feet <br />Expres%vay f Freeway <br />1,000 feet <br />1,500 feel <br />2,644 feet <br />" The column headings A, 8, and C are the dimensions shown in Figures 614.1 through 6111-46. The A <br />dimension Is the dislance from the transition or point of ostnciion to the first sign. The 6 dimension <br />is tho distance between the first and second signs. The C dimension is the dislance between the <br />second and third signs. (The'first sign" Is the sign in a three -sign series that is closest to the TTC <br />zone. The 'third sign' is the sign that is furthest upstream from the TfC zone.) <br />Posted speed limit, off-peak 05111-percemile speed prior to work starting, or other anticipated opereling zpaed <br />in mph. <br />Table 6H=4. Formulas for Determining Taper Length <br />Speed (S) <br />Taper Length (L) in feet <br />Ws2 <br />40 mph or less <br />L= — <br />60 <br />45 mph or more <br />L= WS <br />Where: L =laperlength infeet <br />W = tvidih of offset in feet <br />S -= posted speed limit, or of -peak 85th percentile <br />speed prior to work starling, or the anticipntcd <br />operating speed in mph <br />Chapter 6H –Typical Applications November 7, 2014 <br />Put 6 – Tenrporary'rmfflc Control <br />