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California MDTCD20l2Edition <br /> Page 1136 <br /> (PBWA'oMDT{D2OO9Edition,noamended for use iuCalifornia) <br /> � <br /> 'Tmbye � h <br /> 60 <br /> 'Wmw L <br /> W^ <br /> a ~p6sW sp'Q&d R60,pr off-peak 65th-percentile <br /> Table 6H-4(CA).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 /> (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 /> 70 840 280 50 <br /> Posted speed limit,off-peak speed prior towork starting,orthe anticipated <br /> speed in mph. <br /> For other offsets use the following merging taper length formula for L: <br /> For speeds of4Omph orless,L=W8216O <br /> For speeds of45mph ormore, L=YVS <br /> VVkena: L=taper length infeet <br /> W=width of offset in feet <br /> G=posted speed limit,off-peak speed prior to work <br /> starting,o[the anticipated operating speed inmph <br /> Maximum downstream taper length io1UOfeet.See Section OC.08. <br /> cuuytez6B—Typical A0pb,xdnuo January l3,20\2 <br /> Part 0—Temporary Traffic Control <br /> Temporary Traffic Control(Parts 1 &0)Page 104of32O <br />