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California M-O7CD20l2Edition Page 1136 <br /> (FHWAInMDTCD2009Edition,asamended for use inCalifornia) <br /> -44 rnph or less <br /> qQ <br /> .Whem,L (apef j&nqIff j6 feet <br /> vy <br /> o ~ <br /> 16 '°— <br /> Tablu Taper Length Criteria for Temporary Traffic Control Zones <br /> (for 12feet Offset Width) <br /> Minimum Taper Length** <br /> Speed* for Width of Offset 12 feet(W) <br /> S Merging Shifting Shoulder Down <br /> (mph) L U2 U3 Stream <br /> (feet) (feet) (feet) (feet)*** <br /> 20 80 40 27 50 <br /> 25 125 63 42 50 <br /> 30 180 90 60 50 <br /> 35 245 123 82 50 <br /> 40 320 160 107 50 <br /> 45 540 270 180 50 <br /> 50 600 300 200 50 <br /> 55 660 330 220 50 <br /> 60 720 360 240 50 <br /> 65 780 390 260 50 <br /> 70 840 420 280 50 <br /> Posted speed limit,off-peak speed prior howork starting,or the anticipated operating <br /> speed inmph. <br /> For other offsets use the following merging taper length formula for L <br /> For speeds Uf4Omph n[less,L=VVGI/OO <br /> For speeds of45mph ormore,L=VVS <br /> Wham: L=taper length infeet <br /> VV=width ofoffset|nfeet <br /> S=posted speed limit,off-peak 85m-ponmnti|ospeed prior tnwork <br /> starting,orthe anticipated operating speed inmph <br /> Maximum downstream taper length is10Ofeet.See Section 8C.08. <br /> Chapter 6H Typical Applications January 13,2012 <br /> Part 0—Temporary IhdfioControl <br /> Temporary Traffic Control(Parts 1 &0)Page 1Q4of32O <br />