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California MUTCD 2014 Edition Page 1136 <br />(FHWA's MUTCD 200g Edition, including Revisions 1 & 2, as amended for use in California) <br />Ta61e GH -3. Recommended Advance Warning Sign Miniri mw Spacing <br />"�-- <br />Road Type <br />A <br />Distance Between Signs" <br />8 <br />C <br />Urban{NxrMmo- 25 mph or IeW** <br />1100 feel <br />100 feet <br />too feet <br />Urban - more than 25 mph to 40 mph... <br />250 feet <br />250 feel <br />250 feet <br />Urban NN9lwposo. more than 40 mph'" <br />350 feel <br />350 feet <br />350 feet <br />Rural <br />500 feet <br />500 feet <br />500 feet <br />Expressway I Freeway <br />1,000 feet <br />1,500 feel <br />2,610 feet <br />" The column headings A, B, and C are the dimensions shown in Figures 61-1-1 through 6H-46. The A <br />dimension Is the distance from the transition or point of restriction to the first sign. The B dimension <br />is the distance between the first and second signs. The C dimension Is the distance between the <br />second and 111ird signs. (The 'first sign" Is the sign in a three -sign series that is closest to the TTC <br />zone. The 'third sign- is the sign that is furthest upstream from the TTC zone.) <br />Posted speed limit, off-peak 65111 -percentile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Tab -IR 6H-4. Formulas for Determining Taper Length <br />peed (S) Taper Leng <br />nphorlessmph <br />E <br />N <br />or more <br />L= V <br />Where,' L=laperlength Infeet <br />W =width of offset in feet <br />5 =posted speed limit, or off-peak 85111 -percentile -_I - <br />'�`_ speed prior to work starting, or the anticipated <br />operating speed In mph <br />Chapter 6H - Typical Applications November 7, 2019 <br />Part 6 -Temporary Traffic Control <br />