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LANE SHIFT ON A <br />Twn-WAY <br />W20-1 <br />'ROAD <br />WORK <br />.AHEAD <br />CENTER - <br />W20-5MOD LANE <br />CLOSED <br />AHEAD <br />tad <br />fry <br />ci�/ <br />(0PTiuNAL) <br />(OPTIONAL) <br />(OPTIONAL) <br />MINIMUM <br />LANE <br />LANE WIDTH <br />(FEET) <br />25 <br />10 <br />_ <br />105 <br />11 <br />115 <br />1? <br />125 <br />THREE -LANE, <br />ROAD <br />I <br />d <br />1 od <br />1 o d <br />i Cl <br />P q <br />s 1 0 <br />POO 1 00 <br />P 10 <br />w P to <br />u' P I <br />P 10 <br />u� p 10 <br />z p 10 <br />o ls 10 <br />o le I0 <br />b li0 / <br />0 <br />b I <br />b0 I O <br />b o 1 <br />b d 0 <br />b a <br />b.m q <br />b00 1 <br />b I <br />I: <br />1 �I <br />SIGN SPACING <br />= X <br />H k)ffi'VAYS t� EXPRESS`I AY`.)' <br />55-7U <br />MPH <br />1500'� <br />RURAL HIGHWAYS <br />60-65 <br />MPH <br />800':: <br />RURAL ROADS <br />45-55 <br />MPH <br />500'± <br />RURAL ROADS & URBAN ARTERIALS <br />35-40 <br />MPH <br />350'± <br />RURAL ROADS & URBAN ARTERIALS <br />25-30 <br />MPH <br />200't (2) <br />RESIDENTIAL & BUSINESS DISTRICTS <br />URBAN STREETS <br />1 25 MPH OR LESS <br />100'± (2) <br />(1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE <br />RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS. <br />(2) THIS SPACING MAY BE REDUCED IN URBAN <br />AREAS TO <br />FIT <br />ROADWAY CONDITIONS. <br />Pace WaU• I (RoRD WORK )9HEAD) s- hs ovn <br />all (All C. a roacGes fo /60 S S� w/ Alm <br />z Z <br />Koo ffi of work Zone _ <br />r� <br />(OPTIONAL) <br />:. <br />N <br />J <br />x W1-4L <br />s <br />N <br />J <br />CENTER, <br />... LANE' CLOSED W20-5MOD <br />AHEAD <br />ROAD <br />i WORK <br />AHEAD <br />CLOSURE TAPER LENGTH = L <br />POSTED S ' ' 'D (MPH) <br />0 <br />'05 <br />40 <br />45 <br />`)0 <br />00 <br />55 <br />60 <br />0 <br />270 <br />450 <br />550 <br />- <br />5 <br />295 <br />495 <br />50 <br />605 <br />660 <br />0 <br />320 <br />5� (" <br />00 <br />660 <br />720 <br />(FEET) <br />780 84.0 <br />'46A 0) � <br />o <br />GENERAL NOTES: <br />1. ALL SIGNS AND SPACING SHALL CONFORM TO THE MUTCD. <br />2. NOTIFY LOCAL EMERGENCY SERVICES OF CLOSURE TIMES AND <br />DATES (OPTIONAL). <br />3. SIGN SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROAD <br />CONDITIONS. <br />4. PROTECTIVE VEHICLE RECOMMENDED -MAY BE A WORK TRUCK. <br />5. ALL SIGNS MINIMUM 48" X 48", UNLESS OTHERWISE SPECIFIED. <br />6. CHANNELIZATION DEVICES ARE 28" REFLECTIVE CONES. SEE TABLE i <br />FOR SPACING DISTANCES. <br />7. ALL SPACING MAY BE ADJUSTED TO ACCOMODATE AT -GRADE <br />INTERSECTIONS AND/OR DRIVEWAYS. <br />BUFFER DATA <br />LONGITUDINAL BUFFER SPACE = B <br />SPEED (MPI1) 25 �O 35 1 40 1 45 50 55 60 1 65 70 <br />LENGTH (FEET)l <br />155 <br />200 <br />250 <br />1 305 <br />1 360 <br />425 <br />1 495 <br />1 570 <br />1 645 <br />730 <br />TRANSPORTABLE ATTENUATOR ROLL AHEAD DISTANCE = R <br />HOST VEHICLE WEIGHT HOST VEHICLE WEIGHT <br />9,900 TO 22,000 LBS. > 22,000 LBS. <br />< 45 MPH <br />45-55 MPHI <br />> 55 MPH <br />< 45 MPH <br />45-55 MPHI <br />> 55 MPH <br />100' 1 <br />123' 1 <br />172' <br />74' 1 <br />100' 1 <br />150' <br />TABLE 1 <br />CHANNELIZATION DEVICE <br />SPACING (FEET) <br />MPH <br />TAPER <br />TANGENT <br />50-70 <br />40 <br />80 <br />35-45 <br />30 <br />60 <br />25-30 <br />20 <br />40 <br />I P_r`_P_NlF)- <br />O CHANNELIZING DEVICE <br />PORTABLE SIGN AND SUPPORT <br />®® WORK VEHICLE WITH FLASHING <br />LIGHT <br />�� WORK AREA <br />