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California MUTCD 2014 Edition Page 1136 <br />(FHWA's MUTCD 2009 Edition, including Revisions I & 2, as amended for use in California) <br />Table 6N-3. RecomMended .Advance Warning Sign Minimum Spacing <br />Road Type <br />A <br />Distance Petween Signsx <br />g <br />G <br />Urban+ewepeed}-25.mphorless`" <br />100feet <br />too feet <br />L= WS <br />100 feet <br />Urban - more than 25 mph to 40 mph-" <br />250 feet <br />250 feet <br />250 feet <br />Urban " igiwps ad) -more than 40 mph'" <br />350 feet <br />350 feet <br />350 feet <br />Rural <br />500 feet <br />500 feet <br />500 feet <br />Expressway f Freeway <br />i,coo feel <br />1,500 feet <br />2,640 feet— <br />" The column headings A, 0, and C are the dimensons shown in Figures 8H-1 through 61140- The A <br />dimension is the distance from the transition or point of restriction to the first sign. The 0 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 tie sign that is furthest upstream from the TTC zone.) <br />•'• posted speed limit, off-peak 85th -pe denale speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Table 6H-4: 1:ormulala for Deterknining Taper Length <br />Speed (S) <br />Taper Length. (L) in feet <br />W <br />40 mph or less <br />L= 00 <br />45 mph or more <br />L= WS <br />Where: L = taper length In feet <br />W = width of offset in feet <br />5 = poste�..s.peed limit, or off-peak 85th•percentile <br />spel nor to work starting, or the anticipated <br />operating speed in mph <br />Chapter 6H - Typical Applications <br />Part 6 - Temporary Traffic Control <br />November 7, 2014 <br />