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California MUTCl7 2014 Edition Page 1136 <br />(FIIWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table BH -3. Recommended Advance Warning Sign AllininwmSpacing <br />Road Type <br />Distance Between signs" <br />40 mph or less <br />A B <br />45 mph or more <br />Urban '. r26 mph or less'•" <br />1o0 feet <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 />Urban {61yp:epe"f-more than 40 mph*- <br />350 feet <br />350 feet <br />350 feet <br />Rural <br />500 feet <br />500 feet <br />500 feet <br />Expressway l Freeway <br />1,006 feet <br />1.500 feel <br />2,640 feel <br />The column headinbQA gs A, B, and C are 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 6 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 three -sign series that is closest to the TTG <br />zone. The "011rd sign" Is the sign that is furthest upstream from the TTG zone.) <br />�• Posted speed limit, off-peak 05th -percentile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />able 61-1-4. Formulas for Determining Taper Length <br />Chapter 6H — Typical Applications <br />Part 6 — Temporary Traffic Control <br />Speed (S) Taper Length (L) in feet <br />ws <br />40 mph or less <br />L= 80 <br />45 mph or more <br />L= WS <br />Where., L = taper length in feet <br />W = width of offset in feel <br />S = posted speed limit, oroff-peak 85t11 -percentile _ <br />o <br />speed prior to work starting, or the anticipated <br />operating speed in mph <br />November 7, 2014 <br />