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California MUTCD 2014 Editloti Page 1136 <br />(FI-IWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table GH -3. Recommended Advance Warning Sign *Wrrimw Spacing <br />" The column heatlings A, 0, and <br />Care the dimensions shown in Figures 6H-1 through 6H-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 dimonsion is the distance between the <br />second and third signs. (The 'First sign' Is the sign Ina three-sign series that is closest to the TTC <br />zone. The "thltd 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 6H-4, f=ormulas for Determining Taper Length <br />Speed (S) Taper Length (L) In feet <br />WSz <br />40 mph or less <br />L= <br />60 <br />45 mph or more <br />L= WS <br />Where: L = taper length in feel <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 GH –Typical Applications <br />Part 6 – Temporary Traffic Control <br />November 7, 2014 <br />