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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 6H-3. Recommended Advance Warning Sign Mini�jIleim Spacing <br />Road Type <br />A <br />Distance Between Signs" <br />B <br />C <br />Urban{kvreMwa 25 mph or less"' <br />100 Leet <br />100 feet <br />100 feet <br />Urban - more than 25 mph to 40 mph... <br />250 feet <br />250 feet <br />250 feet <br />Urban nigh opaN}-more than 40 mph"' <br />350 feet <br />350 feel <br />350 feet <br />Rural <br />500 feet <br />500 feet <br />500 feet <br />Expressway / Freeway <br />1,000 feet <br />1,500 feet <br />2,840 Leet <br />The column headings A, 9, aad G are the dimensions shown in Figures 6H-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 TTG <br />zone. The "third 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 6H44. Formulas for Determining Taper Length <br />Where: L =taper length in feet <br />W =width of offset its -feet <br />5 = 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 />