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California MUTCD 2011 Edition Page 1136 <br />(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California) <br />Table ki1-1-3. Recommended mended AdvaricFWarviling Sign <br />Road type <br />A <br />Distance between Signa" <br />f3 <br />U <br />Urban#wPersetl}-25 mph or lass— <br />lonreet <br />IOU feet <br />60 <br />100feet <br />Urban - more than 25 mph to 40 mph"" <br />250 feet <br />250 reel <br />250 feet <br />Urban more than 40 mph"' <br />350 feet <br />350 feel <br />350 feet <br />Rural <br />500 feet <br />500 feet <br />500 feet <br />Expressway / Frea:vay <br />1,000 feel <br />1,500 feel <br />2,640 feet <br />e_I+_='ul hA _ -db. .. I,b F•ut�eijRO.:]�S <br />" The coiumnheadings A,`B, and C are the dimensions shown in Figures 61-1 0irough 6H-46. The A <br />dimension is the distance from the transition or point of restriction to the fifst sign. The B dimension <br />is the distance beh: can the first end second signs. The C dimension is the distance 11-Mleen the <br />second and third signs. (Tile 'first sign" is lire sign in a three -sign series that is closest to the Ti <br />zone. The "third sign -is the sign that is furthest upstream from lha TTC zone.) <br />"' Posted speed limit, off-peak 05th-peroc_nlile speed prior to work sterling, or other anticipated operating speed <br />in mph. <br />Table SH -4. Formulas or Determining Taper Length <br />Speed (S) <br />Taper Length (L) in feet <br />WS2 <br />40 mph or toss <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 />S -- posted speed limit, or off-peak 85th -percentile <br />speed prior to Work starling, or the anticipated <br />operating speed in mph <br />Chapter OH - Typical Applications NfeVelilher 7, 2014 <br />Part 6 -Temporary Traffic Control <br />