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California MDTCD20l2Edition Page 1136 <br /> (FBWA'oB0JTCD2009Edition,asamended for use in California) <br /> � <br /> Table PHA P-6irmu �f — Le"glth <br /> .40 Mph Ole 19S5 <br /> 'Whd*�L ~taper 16noth feel <br /> W.- <br /> o = <br /> v��moyn�*m�m <br /> Table 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 L/3 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 1 420 280 50 <br /> Posted speed limit,off-peak 851h-percentile speed prior to work starting,or the anticipated operating <br /> 0000d in mph. <br /> For other offsets use the following merging taper length formula for L <br /> For speeds of4Omph O[less,L=VVG900 <br /> For speeds Of45mph O[more,L=VVS <br /> Whom: L=taper length infeet <br /> W=width of offset in feet <br /> 8=posted speed limit,off-peak 85m'porcmnU|aspeed prior towork <br /> starting,nrthe anticipated operating speed inmph <br /> Maximum downstream taper length is100feet.See Section 8C.O8. <br /> Chapter 0B—Typical Applications January 13,202 <br /> Part 6—Temporary Traffic Control <br /> Temporary Traffic Control(Parts 1 &0)Page 1O4of320 <br />