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California MIFI CD 2014 Edition <br />(FHWA's MUTCD 2009 Edition, im <br />Table 6H-3. <br />Revisions 1 & 2, as amended for use in Califomia <br />Advance Warning Sign <br />Road Type <br />Speed(S} <br />Distance Between Signs <br />A B <br />C <br />Urbanliewepeseil- 25 mph or,less"` <br />10o feet <br />100 feet <br />100 feet <br />Urban - more than 25 mph to 4a mph"` <br />250 feet <br />250 feet <br />250 feet <br />Urban 1d) thanl40 mph`- <br />350 feet <br />350 feet <br />350 feet <br />Rural i i <br />500 feet <br />500 feet <br />500 feet <br />F�cpressway 7 Freeway <br />1,000 feet <br />1,500 feet', <br />2,840 feet <br />" The column heath s A, B, and C are the dimensions shown in Figures 6N-1 through 6FI-46. The A <br />dimension is the distance from the transition or point of restriction to the first sign. The 8 dimension <br />is the distance betty' een 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 tb the TTC <br />zone. The"ihird sign' is the sign that is furthest upstream from the TTC zone.) <br />'^ Posted speed limit, off-peak 85th -percentile speed prior to work starting, or other anticipated operating speed <br />in mph - <br />Table <br />Formulas for Determining Taper Length <br />L = taper length in feet <br />W = width of offset ill feet <br />S = posted speed limit, or off-peak 85th -percentile <br />speed prior to work starting, or the anticipated <br />operating speed in mph <br />Page 1136 <br />Chapter 6H - Typical Applications November 7, 2614 <br />Part 6 - Temporary Traffic Control <br />Speed(S} <br />Taper Length (L) in feet <br />WSa <br />40 Mph or Less <br />L = fid <br />45 mph or more <br />L= WS <br />L = taper length in feet <br />W = width of offset ill feet <br />S = posted speed limit, or off-peak 85th -percentile <br />speed prior to work starting, or the anticipated <br />operating speed in mph <br />Page 1136 <br />Chapter 6H - Typical Applications November 7, 2614 <br />Part 6 - Temporary Traffic Control <br />