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Callfomia MUTCD 2014 Edition <br />(FHWA's MUTCD 2009 Edition.including Revisions 1 &2;as amended for use in California) <br />Table 6H-3.Recommended Advance Warning Sign MilliftltlFll Spacing <br />Road Type Distance Between Signs~ <br />A B C <br />'~~~.nHa/:..~~~~25'mpl1'or,l~ss.H.,1,00 feet-ldo'fi~t [dOie"l ' <br />Urban ~more than 25 mph to 40 mph,"'H'250 feet 250 feet 250 feel <br />.9rban~i~f;j~~~8,e~~~ore~ha-n40rriphi~•.350 feel 3:5'0 feet '350"r~et <br />Rural 500 feet ?OO feet 500 reet <br />,'E,!p~s:sw~yJ'FreiewaY 1;000 reet ,.1.500feel ?64o:re~1 <br />•Sf 021 pt?9?F;''n !:.g'/"c'prmip?rIb.'Ibo b'gb'''or ?@rnW <br />.••The column headings A,B.and C are the dimensions shown in Figures 6H.'through 6H-46.'The A <br />dimension is the distance from the transi«on or point of restriction to the firsLslgn.The B.dimensionisthedistancebgtweenthefirstandsecondsigns.The C dimensio'n is t~e distance 'bef ••••.:een-the <br />second and third signs.(The ''first sign"is the sign in a three~signsei'ies'lhafis closest to the TIC <br />zone.The "third sign"isthe sign that isfurthest upstream from 1heTTC zone.) <br />•••.•'Posted speed limit;ciff.pea!<85th~percentile speed prIor to work starting,or other anticipated operating speed <br />in mph. <br />Table6H.4.Formulas for lDetermining Taper length <br />Speed(S)Taper Length (L)in feet <br />WS'40 inpilor.Jess L=--60 <br />45 mph or more .L=INs <br />Where:L =laper length inieel <br />W "width of offset .infeelS=posled speed limit,or oif-peak 85th-percenlile <br />speed prior to work starling.or Ihe anticipaledoperatingspeedinmph <br />Page 1136 <br />Chapter 6H -Typical Applications <br />Part 6 -Temp0ralY Traffic Control <br />Novemher 7,2014