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California MUTCD 2014 Edition <br />(FHWA's MUTCD 2809 Edition, including Revisions 1 &2, as amended for use in California) <br />Table 6H-3; Recommended Advance Warning Sign #Aiwk4%mwSpacing <br />Road Type <br />Distance Between signsR* <br />A 6 <br />C <br />Urban jWmepeeO- 25 mph or 1059— <br />100 Feet 100 feet <br />100 feel <br />Urban - more than 25 mph to 40 mph"' <br />250 feet 250 feet <br />250 feet <br />Urban 4hgbopesd)-more than 40 mph'— <br />350 feet 350 feel <br />350 feet <br />Rural <br />500 feet 500 feet <br />500 feet <br />Expressway t Freeway <br />1,000 feel 1,500 feet <br />2,640 feet <br />" The column headings A, B. and Care the dimensions shown in Figures OH -1 through 61-1-46. The A <br />dimension is the distance from the transition or point of restriction to the first sign. The S 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' fs the sign in a three -sign series that is closest to the lTC <br />mile. The "ibird sign" is the sign that is iurlhest upstream from the TTC zone.) <br />*" pasted speed limit, off-peak 85th -percentile speed prior to mrk shading, or other anticipated operating speed <br />in mph. <br />Table 61,14: Formulas for <br />11 <br />ing Taper Length <br />Speed (S) Taper Lengtti.(L) in feet <br />W52 <br />40 mph or less <br />L= ---- <br />60 <br />45 mph or more <br />L= Ws <br />Where: L = taper length in feet <br />W =width of offset in feet <br />5 =postespeed limit, or off-peak 85th -percentile <br />apeed'ptior to work starting, or the anticipated <br />operating speed in mph <br />Page 1136 <br />Chapter 6H — Typical Applications November 7, 2614 <br />Pati 6 — Temporary Traffic Control <br />:J. <br />