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California MU TCD 2014 Edition Page 1136 <br />(FHWA's MUTCD 2009 Edition, including Revisions 1 & 2, as amended for use in California) <br />Table GH -3. Recommended Advance Warning Sign AillnMiril Spacing <br />The column headings A, 0, and C are the dimensions shown in figures 6H-1 tlrrough 61-1-46. The A <br />dimension Is the distance from the transition or point or restriction to rho final 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 TTC <br />zone, The "third sign" is the sign that is furthest upstream from the TTG zone.) <br />Posted speed limit, off-peak 85th -percentile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Table 61­1-1� Formulas for Determining Taper Length <br />Where: L = taper length in feet <br />W = width of offset III feet <br />S = posted speed limit., or off-peak 85th -percentile <br />speed prior to work starting, or the anticipated <br />operating speed in mph <br />Chapter 611 — Typical Applications November 7, 2014 <br />Part 6 — Temporary Traffic Control <br />IMI <br />'ta- <br />Road Type <br />Distance Between Signs - <br />A B <br />Urban"W4- 25 mph or less"' <br />100 feet <br />100 feel J <br />100 feet <br />Urban - mare than 25 mph to 40 mph` <br />250 feet <br />250 feel <br />250 feet <br />Urban (hiSk qpa 41 -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 I Freeway <br />1,000 feet <br />i.500 feel <br />2,640 feet <br />The column headings A, 0, and C are the dimensions shown in figures 6H-1 tlrrough 61-1-46. The A <br />dimension Is the distance from the transition or point or restriction to rho final 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 TTC <br />zone, The "third sign" is the sign that is furthest upstream from the TTG zone.) <br />Posted speed limit, off-peak 85th -percentile speed prior to work starting, or other anticipated operating speed <br />in mph. <br />Table 61­1-1� Formulas for Determining Taper Length <br />Where: L = taper length in feet <br />W = width of offset III feet <br />S = posted speed limit., or off-peak 85th -percentile <br />speed prior to work starting, or the anticipated <br />operating speed in mph <br />Chapter 611 — Typical Applications November 7, 2014 <br />Part 6 — Temporary Traffic Control <br />IMI <br />'ta- <br />