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California MUTCD 2014 Ed€f€on Page 1136 <br />(MWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />-table GF1-3. Recorwrierneler_I AdvklrIce VAInIing Sig n 5m IGiII <br />Road Type Distance f3eiweon Signal' <br />A B ---T--- <br />3 C' <br />Urban j%w-W&v* 25 mph or less°" too feet <br />100 feet <br />100 feet <br />Urban - more than 25 mph to 40 mph"' 250 feet <br />250 feet <br />250 feel <br />Urban =to then than 40 mph"350 feel <br />350 feat <br />350 feet <br />Rural 500 reel <br />500 feet <br />500 feet <br />Expressway 1 Freeway 1,000 feet <br />1,500 feel <br />2,640 feel <br />e Cnn..rt �-1e..n�y� i.�ln•s�:n_.l 4..,1..._htn}.,,;.. i.rgBR�•y� <br />" The column headings A, B, and C are the clinic nsions shaven in Figures 611.1 through 611-40. The A <br />dimension is Ilse disla rice from the transition a point of restriction totha first sign. The B dimension <br />is the distance oetveea the first end second signs. The C dimension is the distance bekveen the <br />second and third signs. (The 'first sign' Is tie 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 Ti C zone.) <br />Posted speed limit, off-peak 051h-percwnfle speed prior to vrork slan6i0, of other anticipated operating speed <br />in mph. <br />Table 6H-4. Formulas for Deteaninirng Taper Length <br />Speed (S) `Capar Length (L) In feet <br />WSz <br />40ntphorless <br />L= <br />60 <br />45 mph or more <br />L= WS <br />Where: L =taper length In(eel <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 />operaling speed in mph <br />Chapter OH —Typical Applications November 7, 2014 <br />Part 6 — Temporary Traffic Conhol <br />