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California MUTCD 2014 Edition Page 1136 <br />(FHWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table ffl-3. Recorrim wide Adv`tr11,1; IfiJarn kik Si ii ; SPaciric) <br />Road Type <br />A <br />Distance Between Signs— <br />B I <br />C. <br />Urhio -': _ ; - 25 rnph or love" <br />IW feet <br />100 feet <br />60 <br />100 feet <br />Urhen - more than 25 mph to 40 mph... <br />250 feet <br />250 feel <br />250 feet <br />Urban JW#o4 eed}-more than 40 mph"' <br />350 lee[ <br />350 real <br />350 reef <br />Rural <br />500 feet <br />5500 feet <br />500 feel <br />Expresw• ay I Freavvay <br />1,o00 feel <br />1,500 feet <br />2,640 feet <br />" The column headings A, B, and C are the dimensions shown in Figures 61-7 dvough 61-1-46- The A <br />dimension is the dislance from the transition or point of restriction to the first sign. The B dimension <br />Is the dislane2 betr:een the first and second signs. The C dimension is the dislance between the <br />second and third signs. (The Tisl sign" Is Via sign In a three -sign series that is closest to the T7 <br />zone. The "third sign' is the sign that is furthest upstream from Ura TTC zone.) <br />Posted speed limit, off-peak 051i1-peroentile speed prior to 4ork Moiling. or other anticipated operating speed <br />in mph. <br />Tak)le 6VI=4. Formulas -for Detemining Taper Length <br />Speed (S) <br />Taper Length (L) in feet <br />WS= <br />40 mph or less <br />L= — <br />60 <br />,h mph or more <br />L= WS <br />Where: L = taper length in feet <br />W = wrdfh of offset in feet <br />S = posted speed limit, or off-peak 05th-percenille <br />speed prior to work starting, or the anticipated <br />operating speed In mph <br />Chapter 6H —Typical Applications November 7, 2015 <br />Pati 6 — Temporary Traffic Control <br />