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California MUTO 2014 Edition Page 1146 <br />(PHWA's MUTCD 2009 Pdl6an, including Revisions 1 &2, asammnded lheuse in California) <br />Table W(CA), Taper length Criteria for Temporary Traffic Control Zones <br />(for 12 feat Offset No$) <br />Speed, <br />B <br />(mphJ <br />Minimum Taper Length" <br />for Nth of Offset 12 feet (M <br />Merging <br />feet <br />Shifting <br />(feet) <br />Shoulder <br />U33 <br />ftell <br />Down <br />Stream <br />feet)°'" <br />20 <br />80 <br />40 <br />21 <br />50 <br />25 <br />125 <br />63 <br />42 <br />50 <br />30 <br />180 <br />90 <br />60 <br />50 <br />35 <br />248 <br />123 <br />82 <br />50 <br />40 <br />320 <br />160 <br />101 <br />50 <br />45 <br />540 <br />270 <br />180 <br />50 <br />50 <br />600 <br />300 <br />200 <br />50 <br />55 <br />660 <br />330 <br />220 <br />50 <br />60 <br />720 <br />360 <br />240 <br />50 <br />65 <br />760 <br />390 <br />260 <br />50 <br />i0 <br />840 <br />420 <br />280 <br />50 <br />15 <br />900 <br />450 <br />300 <br />5D <br />' • Posted speed limit, off-peak 6%percentle speed prior to work sterling, or the ant6pated operal'ng <br />speed in mph, <br />For other oifsets use the following merging taper length fomaula li <br />For speeds of 40 mph or less, L-WS260 <br />For speeds of 45 mph or more, AS <br />Where: L=laparlength infeel <br />W - widlh of offset in feet <br />S - posted speed limit, off. peak 85kpercentl,e speed prior to work <br />starting, or the anticipated opening speed In mph <br />"' • Maximum downstream taper length is 100 feet Sae Section BLOB, <br />Chapter6H-Typical Applications November 1, 2014 <br />Part 6—Tempomay Traffic Coon] <br />