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California MUTCD 2014 Edition <br />(FHWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table 6H-3. Recommended /advance Warning Sign Mirlifflu t'Spaeing <br />Distance Between Signs'" <br />Road Type n B I c <br />Page 1136 <br />-500 ee - <br />Expressway fFreeway 1,000 feet 1,500 feet 2,840 feet <br />'• The column headings A, 0, and C are the dimensions shorn in Figures 8H-1 through 61-1-46. 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 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 TfC <br />zone. The "third sign' is the sign that Is tudhesl upstream from the 1TC zone.) <br />Posted speed limit, off-peak 85th -percentile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Table 6H-4. f=ormulas for Determining Taper Length <br />Speed (S) Taper Length (L) In feet <br />WS2 <br />40 mph or less <br />L= 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 starting, or the anticipated <br />operating speed in mph <br />Chapter 6H -Typical Applications November 7, 2014 <br />Part 6 - Temporary Traffic Control <br />