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.,.'.( <br />"TABLES AND REFERENCE INDEXES ...•••J <br />TABLE 1..Guidelines for length <br />of longitudinal buffer space. <br />TABLE 2. <br />Taper length criteria YOI'temporary traffic control zones <br />This table to be used for determininf)buffer space <br />lengths on all typical appiication diagrams. <br />SPEED'LENGTHMPHinfeet <br />20 35' <br />25 55' <br />30 85' <br />35 120' <br />40 170' <br />45 220' <br />50 280' <br />55 335' <br />60 415' <br />"Posted speed or the anticipated operating speed <br />in mph. <br />TYPE OF TAPER TAPER LENGTH <br />Upstream Tapers: <br />o Merging Tapers LMinimum <br />o Shifting Tapers 1/2 L Minimum <br />o Shoulder Tapers 1/3 L Minimum <br />•Two-Way Traffic 100 Feet Max <br />(Flagger)Tapers . <br />Downstream Tapers:100 Feet Min <br />o (Use is optional) <br />., <br />I'onnula ~orTaper length "'L" <br />L =W x S x S/60 FOR 40 MPH OR LESS <br />L =W x S FOR 45 MPH OR MORE <br />L =MINIMUM LENGTH OF TAPER IN FEETW=WIDTH OF OFFSET IN FEET <br />S =SPEED IN MPH <br />....,. <br />',. <br />PGEFM1A @ Copyright 2002 InCom,Inc.All rights reserved.NOTE:Local regulations may vary.Page 26