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California D&DICD20l2Edition <br /> Page 1136 <br /> (FHWA'x& UTCD2N09 Edition,uoamended for use in California) <br /> � <br /> Table 4t� <br /> WSJ <br /> Ab mph 0 <br /> 00 <br /> -49 Mph Or rnor� Ws <br /> 'woero L ~IaW 109th M feet <br /> W widih of 066t In feet <br /> o = <br /> Table .Taper Length Criteria for TemporaryTraffic 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) Stream <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-peak85th-percentile uooad prior tnwork Starting,or the anticipated operating <br /> speed in mph. <br /> For other offsets use the following merging taper length formula for L: <br /> For speeds of40mph orless,L=VVG9OO <br /> For speeds of4Smph ormore,L=VVS <br /> VVhonu: L=taper length infeet <br /> VV=width ofoffset infeet <br /> G=posted speed limit,off-peak 85m-pomonti/espeed prior towork <br /> starting,orthe anticipated operating speed|nmph <br /> �°-Maximum downstream taper length in10Ofeet.See Section 0C.O8. <br /> Chapter 0D—Typical Applications January l3,2V12 <br /> Part 6—Temporary Traffic Control <br /> Temporary Traffic Control(Parts 1 &0)Page 104of320 <br />