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Califumia MUTCD 2014 Edition(FHWA's MUTCD 2009 Edition,including Revisions 1 &2;as amended for use in Callfuml.) <br />Table GHo:t Recommended A.dvanceWaming Sign ~Spaeii1g <br />Road Type Distance Between Signs~ <br />A B C <br />;Uip~n((ii,;,,;~<i~c 25'rhp~or less•••,1.00feet 1oo,le'et 100 reet <br />Urban.more than 25 mph to 40 mph••.•k 251)feet 250 feet 250feel <br />.~rbar,{tiigl;l "spaeod).f!1ore ,than 40 mph••'.3S0ieel 350,ieet '"350 'reet <br />Rural 500 feet ?OO feet 500feel <br />,:1;'!pte"'W?'{j Freeway iMOreet ,rSOOfeel 2,640feet <br />••~~=l.f'!i!{£'ZA~d.plp=jpod-b!#,"",-bi£l>\••9tI~ <br />..•.•The column headings A,B.and C are the dimensions shawn in figures 6H~1 througn 6H-46."The A <br />dimension is the distance from tile trans ilion or point of restriction to the first-sign.The B.dimensionisthedistancebetweenthefirstandsecondsigns.The C -dimeflsion is t~e distance 'bet\'o.ieenthe <br />second and third signs.(The "first sign"is the sign in a three-sign se"ries'(hans.dosesl fo the TIC <br />zone.The "third sign~is the sign that is furthest upstream fronltlie TTC zone.) <br />•.•••Posted speed limit;ciff':peak 85th~percent[[e speed prior to work starting,or other anticipated operating speed <br />in mph. <br />'Table6H=4o ftm:nulas for Determining Taperr l~ngth <br />Speed (S)Taper Length (L)in feet <br />T WS'40 inphor.less ,L~--60 <br />45 mph or more L~WS <br />Where:L ~laper length infeetW"width of offsel in feet::;~posted speed limit,or off'peak 85th-percentile'speed prior to work starting.or the anticipatedoperatingspeedInmph <br />" <br />Page 1136 <br />'.'.. <br />Chapter fiH -Typical ApplicationsPartfi-Temporaty Traffic Control <br />Novemher 7,2014