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California MUT CD 201' 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 Minimum Spacing <br />Road Type <br />A <br />Distance Between Signs" <br />B <br />c <br />Urban4kwepe884- 25 mph or less'" <br />100 feet <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 />Urban4Wy"pa"r . more than 40 mph— <br />350 feel <br />350 feel <br />350 feet <br />Rural <br />500 feel <br />500 feet <br />500 feet <br />Expressway 1 Freeway <br />1,000 feet <br />1.500 feet <br />2,640 feet <br />" The column headings A, B, and Care the dimensions shown in Figures 611-1 through 61-1-46. 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 We Wen the <br />second and third signs. (The "fist sign' is the sign in a three sign series that is closest to the TTC <br />zona, The 'third sign" is the sign that is furthest upstream from the TTC zone.) <br />"'- Posted speed limit, off-peak 85th-percemile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Table 6H-4. Formulas for Determining Taper Length <br />- U41 <br />Speed (S) Taper Length (L) in feet <br />WSa <br />40 mph or less <br />L= <br />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 oft -peak 85th -percentile <br />7"; 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 />