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TC420 Alternating 1-Lane, 2-Way Traffic...pdfRECOMMENDED SIGN SPACING = X (1) RURAL ROADS & URBAN ARTERIALS 35-40 MPH 3504 RURAL ROADS & URBAN ARTERIALS 25-30 MPH 200'± (2) RESIDENTAL & BUSINESS DISTRICTS URBAN STREETS 25 MPH OR LESS 100'± (2) (1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS. (2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROADWAY CONDITIONS, OPTIONAL LONGITUDINAL BUFFER SPACE = B SPEED (MPH) 20 25 30 35 40 B (feet) 115 155 200 250 305 Buffer space may be adjusted (±) based on field conditions. _a �r v I— a a 14 MAXIMUM CHANNELIZATION DEVICE SPACING (feet) MPH TAPER TANGENT 35-40 10-20 60 20-30 10-20 40 1000'± MAX & UP TO 2 DRIVEWAY, BUSINESS ACCESS,AND/OR INTERSECTING ROADWAYS (OTHERWISE, USE PILOT CAR OPERATION) cr w a_w U 0o Q FOR DRIVEWAY, BUSINESS ACCESS, AND INTERSECTING ROADWAY DETAILS: Ln + SEE TC420, SHEET 2. ■ ■ J WORK o AREA 0 ■ ■ ❑❑❑❑El : ■ 0 0 0 0 ■ (OPTIONAL) SEE NOTE 4 300' @ 20' X X I X I X 1 50'- 300' 36" MIN 36" MIN 36" MIN 36" MIN 24" ROAD BE VAHEAD ONROADNEPREPARED AHEAD TO STOP MIN 36" MIN 36, MIN 36" MIN W20-1 W20-4 W20 -7B W20 -7A OPTIONAL IF $� 40 MPH OR LESS W21-1201 (W/R, B/O) LEGEND: K TEMPORARY SIGN LOCATION n 28" REFLECTIVE TRAFFIC CONE (SEE NOTE 3) ❑ OPTIONAL CHANNELIZATION DEVICE 'a PROTECTIVE VEHICLE (SEE NOTE 2) FLAGGER FILE NAME TIME DATE PLOTTED BY DESIGNED BY ENTERED BY CHECKED BY PROJ. ENGR. REGIONAL ADM. CAUsers1LintzF1OneDrive - Washington State 2:05:02 PM 4/2/2024 LintzF A 0 R PROTECTIVE VEHICLE ROLL AHEAD DISTANCE = R STRATEGICALLY POSITION WORK VEHICLE TO PROTECT WORK CREW 40'- 80' RECOMMENDED. 24" 24" o W21-1201 ( N OPTIONAL IF 40 MPH OR LESS Lu *36" MIN 36" MIN 36" MIN 36" MIN o BE _j Lu wQ H H U PREPARED ONE LANE ROAD Z O o _ ROAD WORK O Z 0 w TO STOP AHEAD AHEAD F_ w —0 MIN 36" MIN 36" MIN 36" MIN O W o + W20 -7A W20 -7B W20-4 W20-1 B x x �� x � x 10 El N N 1H ❑ Z o_ NOTES: 1. AVOID PLACING LANE CLOSURE TAPERS WITHIN OR IMMEDIATELY FOLLOWING HORIZONTAL & VERTICAL CURVES BY ADJUSTING LONGITUDINAL BUFFER SPACE. 2. PROTECTIVE VEHICLE MAY ALWAYS BE USED ON ROADWAYS 40 MPH OR LESS, EVEN IF THE LONGITUDINAL BUFFER SPACE IS REDUCED OR ELIMINATED. ADDITIONAL PVs MAY BE ADDED AT SEPARATE WORK CREWS. 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): EXISTING EXISTING EXISTING EXISTING (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA SHOULDER LANE LANE SHOULDER (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC _ WORK AREA _ 10' MIN LANE OPEN (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) TO ALT. TRAFFIC 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL SEE NOTE 3 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. SECTION A -A 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. ACTUAL CENTERLINE PAVEMENT MARKINGS MAY VARY. ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE lent of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Plot 1 NO REGION STATE FED.AID PROJ.NO.dft PLAN REF NO 10 IWAS TI/ TC420 JOB NUMBER Washington State SHEET CONTRACT NO. LOCATION NO. Department of Transportation o GATE DATE TYPICAL TRAFFIC CONTROL PLANS SHEETS REVISION DATE BY P.E. STAMP BOX P.E. STAMP sox ■ • ■ ■ 10' MIN TRAFFIC (OPTIONAL) LANE_ NOTES: 1. AVOID PLACING LANE CLOSURE TAPERS WITHIN OR IMMEDIATELY FOLLOWING HORIZONTAL & VERTICAL CURVES BY ADJUSTING LONGITUDINAL BUFFER SPACE. 2. PROTECTIVE VEHICLE MAY ALWAYS BE USED ON ROADWAYS 40 MPH OR LESS, EVEN IF THE LONGITUDINAL BUFFER SPACE IS REDUCED OR ELIMINATED. ADDITIONAL PVs MAY BE ADDED AT SEPARATE WORK CREWS. 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): EXISTING EXISTING EXISTING EXISTING (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA SHOULDER LANE LANE SHOULDER (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC _ WORK AREA _ 10' MIN LANE OPEN (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) TO ALT. TRAFFIC 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL SEE NOTE 3 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. SECTION A -A 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. ACTUAL CENTERLINE PAVEMENT MARKINGS MAY VARY. ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE lent of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Plot 1 NO REGION STATE FED.AID PROJ.NO.dft PLAN REF NO 10 IWAS TI/ TC420 JOB NUMBER Washington State SHEET CONTRACT NO. LOCATION NO. Department of Transportation o GATE DATE TYPICAL TRAFFIC CONTROL PLANS SHEETS REVISION DATE BY P.E. STAMP BOX P.E. STAMP sox NOTES: 9. FOR LEGEND, TABLES, AND ADDITIONAL NOTES: SEE TC420, SHEET 1. 10. WORK MAY BRIEFLY OCCUR WITHIN LANE CLOSURE ACROSS INTERSECTING ROADWAY APPROACHES, BUSINESS ACCESSES, OR DRIVEWAYS. MAY HOLD APPROACH OR ACCESS TRAFFIC FOR 5 MINUTES OR LESS (ENGINEER MAY ACCEPT HOLDS UP TO 10 MINUTES) WHILE RESTRICTING TURNS FROM MAINLINE. CHANNELIZATION DEVICES DELINEATING APPROACH OR ACCESS MAY BE REMOVED OR RELOCATED AS NEEDED. 11. SINGLE FLAGGER (WITH RED FLAG/ RED GLOW CONE FLASHLIGHT) MAY BE ADDED TO THE INTERSECTING ROADWAY APPROACH TO HELP GUIDE ALTERNATING & TURNING TRAFFIC. x x x 36" MIN 36" MIN BE 36" MIN ROAD ONE LANE PREPARED WORK ROAD AHEAD AHEAD TO STOP 36" MIN 36" MIN 36" MIN W20-1 W20-4 W20-76 OPTIONAL IF 40 MPH OR LESS x 36" MIN 24" 36" MIN • W20 -7A W21-1201 SIGN SEQUENCE A (W/R, B/O) 48"x48" signs required on 45+ mph roadways USE SIGN SEQUENCE A 5' DEVICE SPACING WORK WORK � AREA AREA SEE NOTE 10 �'tl (OPTIONAL) 17 SEE NOTE 11 UNSIGNALIZED INTERSECTING ROADWAY DETAIL SAME SIDE AS LANE CLOSURE (TWO OPEN LANES) USE SIGN SEQUENCE A WORK AREA 50' TAPER 6+ DEVICES 5' SPACING 10' MINL WORK AREA SEE p 1 NOTE 10 1P Ili 4 o AREA 70 SEE G —W; NOTE 10 a� a DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA o a o -c o -0 ■ ■ 10' SPACING ACROSS D/W OR B. ACCESS O (OPTIONAL) z SEE NOTE 11 c') Q / LU w USE SIGN SEQUENCE A �'I > ¢ z 0.0 _ I oo I UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUserslLintzFlOneDrive - Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy40-AltTrafficFlagger.dgn — TIME 2:05:02 PM RNIOON STATE FED.AID PROJ.NO. Y DATE 4/2/2024 —/— PLOTTED BY LintzF 10 WAS -„ DESIGNED BY JOB NUMBER ENTERED BY Washington State CHECKED BY CONTRACT NO. LOCATION NO. Department of Transportation PROD. ENGR. GATE GATE TYPICAL TRAFFIC CONTROL PLANS REGIONAL ADM. REVISION DATE BY P.E. STAMP BOX P.E. STAMP BOX Plot 2 PLAN REF NO TC420 SHEET 2 OF 4 SHEETS } 0 a zS: O 0 z X U W W H O Z o — E■ 5' SPACING 10' MINL WORK AREA SEE p 1 NOTE 10 1P Ili 4 o AREA 70 SEE G —W; NOTE 10 a� a DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA o a o -c o -0 ■ ■ 10' SPACING ACROSS D/W OR B. ACCESS O (OPTIONAL) z SEE NOTE 11 c') Q / LU w USE SIGN SEQUENCE A �'I > ¢ z 0.0 _ I oo I UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUserslLintzFlOneDrive - Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy40-AltTrafficFlagger.dgn — TIME 2:05:02 PM RNIOON STATE FED.AID PROJ.NO. Y DATE 4/2/2024 —/— PLOTTED BY LintzF 10 WAS -„ DESIGNED BY JOB NUMBER ENTERED BY Washington State CHECKED BY CONTRACT NO. LOCATION NO. Department of Transportation PROD. ENGR. GATE GATE TYPICAL TRAFFIC CONTROL PLANS REGIONAL ADM. REVISION DATE BY P.E. STAMP BOX P.E. STAMP BOX Plot 2 PLAN REF NO TC420 SHEET 2 OF 4 SHEETS RECOMMENDED SIGN SPACING = X (1) RURAL ROADS & URBAN ARTERIALS 35-40 MPH 3504 RURAL ROADS & URBAN ARTERIALS 25 30 MPH 200'± (2) RESIDENTAL & BUSINESS DISTRICTS URBAN STREETS 25 MPH OR LESS 100'± (2) (1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS. (2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROADWAY CONDITIONS, mPCMS 1 2 FLAGGER 1 MILE AHEAD WATCH 4 STOPPED TRAFFIC 2.0 SEC 2.0 SEC FIELD LOCATE 1± MILE PRIOR TO FLAGGER OR PRIOR TO EXPECTED TRAFFIC QUEUE PER STD. SPEC. 1-10.3(3)C. MAXIMUM CHANNELIZATION DEVICE SPACING (feet) MPH TAPER TANGENT 35-40 10-20 60 20-30 10-20 40 ❑❑❑❑El (OPTIONAL) 300' @ 20' EPX x x x 80' 36" MIN 36" MIN 36" MIN 36" MIN 24" ROAD BE VNROADNE OPREPARED ■� AHEADTO STOP MIN 36" MIN 36" MIN 36" MIN W20-1 W20-4 W20 -7B W20 -7A OPTIONAL IF $LQW 40 MPH OR LESS W21-1201 (W/R, B/O) SEE NOTE 2 LEGEND: K TEMPORARY SIGN LOCATION ■ 28" REFLECTIVE TRAFFIC CONE (SEE NOTE 3) ° OPTIONAL CHANNELIZATION DEVICE 0 'a PROTECTIVE VEHICLE FLAGGER PCM mini PORTABLE CHANGEABLE MESSAGE SIGN (PCMS OK, SEE NOTE 8) FILE NAME DATE PLOTTED BY DESIGNED BY ENTERED BY CHECKED BY PROJ. ENGR. REGIONAL ADM. CAUserslLintzFlOneDrive - Washington State Department of 2:05:03 PM 4/2/2024 LlntzF REVISION 500' MAX OR 0.1 MILE (SEE NOTE 1) (MINIMIZE DISTANCE BETWEEN MAINLINE FLAGGERS TO MINIMIZE DELAYS & TRAFFIC QUEUES) SEE NOTE 2 24" 24" W21-1201 (W/R, B/O) OPTIONAL IF 40 MPH OR LESS 36" MIN 36" MIN 36" MIN 36" MIN U o U ■� PREPARED ON�EAD LU — FOR DRIVEWAY, BUSINESS ACCESS, w — Q 36" MIN TO STO 36" MIN MIN 36" MIN o w AND INTERSECTING ROADWAY DETAILS: o w � SEE TC420,SHEET 4. � o + A o W20 -7A W20-76 W20-4 W20-1 ko 250'± MAX WORK AREA (SEE NOTE 1) R =40' X X X X El N N N ❑ Za WORK ° o AREA 13 ■ < o ■ o _■❑o❑ SEE NOTE 4 10' MIN 80' 220'@ 2 � TRAFFIC (OPTIONAL) LANE_ EXISTING EXISTING EXISTING EXISTING SHOULDER LANE LANE SHOULDER _ WORK AREA _ 10' MIN LANE OPEN TO ALT. TRAFFIC SEE NOTE 31 0 � SECTION A ALTERNATING (HIGH Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn REGION I STATE FED.AID PROJ.NO. NO. 10 WAS JOB NUMBER CONTRACT NO. LOCATION N0. DATE BY 0 NOTES: 1. DISTANCE GREATER THAN 500' BETWEEN MAINLINE FLAGGERS REQUIRES ACCEPTANCE FROM REGION TRANSPORTATION OPERATIONS. THIS ENHANCED PLAN IS APPLICABLE TO HIGH VOLUME HIGHWAYS WITH 800+ VEHICLES/HOUR IN ALL DIRECTIONS. WORK AREA LENGTH ADJUSTS ACCORDINGLY. 2. FLAGGERS' GOAL IS TO MAXIMIZE TRAFFIC CAPACITY BY MINIMIZING TRAFFIC GAPS & LOST TIME. STRATEGIES: (A) WAVE SLOWER DRIVERS THRU TO "CLOSE THE GAP" (B) DON'T WAIT FOR APPROACHING TRAFFIC AFTER QUEUE RELEASED. LET THEM WAIT FOR THE NEXT TURN (C) EFFECTIVELY USE 2 -WAY RADIOS TO MINIMIZE LOST TIME WHEN CHANGING TRAFFIC RELEASE DIRECTIONS 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. FULL-SIZE PCMS (1 Tx UDISPLAY) MAY BE USED IN LIEU OF mPCMSs. PCMS MESSAGES MAY BE MODIFIED. 9. EXISTING PAVEMENT MARKINGS MAY VARY. 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED VOLUME HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE IP.E. STAMP BOX GATE P.E. STAMP BOX DATE MAW / k A Washington State Department of Transportation Plot 3 PLAN REF NO TC420 SHEET 3 OF TYPICAL TRAFFIC CONTROL PLANS SHEETS NOTES: 10. FOR LEGEND, TABLES, AND ADDITIONAL NOTES: SEE TC420, SHEET 3. 11. WORK MAY BRIEFLY OCCUR WITHIN LANE CLOSURE ACROSS INTERSECTING BUSINESS ACCESSES AND DRIVEWAYS ONLY. MAY HOLD ACCESS TRAFFIC FOR LESS THAN 1 MINUTE WHILE RESTRICTING TURNS FROM MAINLINE. CHANNELIZATION DEVICES DELINEATING APPROACH OR ACCESS MAY BE REMOVED OR RELOCATED AS NEEDED. 12. SINGLE FLAGGER (WITH RED FLAG/ RED GLOW CONE FLASHLIGHT) MAY BE ADDED TO THE INTERSECTING ROADWAY APPROACH TO HELP GUIDE ALTERNATING & TURNING TRAFFIC. 13. FLAGGERS MAY COLLABORATE TO RELEASE APPROACH/ACCESS AND MAINLINE TRAFFIC TRAVELING IN THE SAME DIRECTION CONCURRENTLY. x x x x 36" MIN 36" MIN*36" MIN . 36" MIN 24" ROAD V36' WORK ■AHEAD 36" MIN MIN MIN \%" MIN ' W20-1 W20-4 W20-76 W20 -7A OPTIONAL IF 40 MPH OR LESS 10 W21-1201 SIGN SEQUENCE A (W/R, B/O) 48"x48" signs required on 45+ mph roadways USE SIGN SEQUENCE A } O 0 z P: x LU W W W IL 16 Z 5' DEVICE SPACING WORK AREA SEE NOTE 11'a (OPTIONAL) 1 SEE NOTE 12 UNSIGNALIZED INTERSECTING ROADWAY DETAIL SAME SIDE AS LANE CLOSURE (TWO OPEN LANES) DETAIL NOT USED FOR HIGH VOLUME CONFIGURATIONS SEE D ■13/ NOTE 11 a� a WORK DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA a a a a-0 o-0 o a a 10' SPACING ACROSS �� D/W OR B. ACCESS Q .�, SEE NOTE 13 WLU U I iQ I I �O I UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGH VOLUME HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUsers1LintzF1OneDrive -Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Qw W U SEE NOTE 13 t 00 PACIN WORK R NO.N STATE SEE D ■13/ NOTE 11 a� a WORK DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA a a a a-0 o-0 o a a 10' SPACING ACROSS �� D/W OR B. ACCESS Q .�, SEE NOTE 13 WLU U I iQ I I �O I UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGH VOLUME HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUsers1LintzF1OneDrive -Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn P.E. STAMP BOX DATE P.E. STAMP BOX Washington State Department of Transportation Plot 4 TIME 2:05:03 PM R NO.N STATE FED.AID PROJ.NO. PLAN REF NO TC420 DATE 4/2/2024 10 PLOTTED PLOTTED BY LlntzF DESIGNED BY JOB NUMBER SHEET F SHEETS ENTERED BY CHECKED BY CONTRACT NO. LOCATION NO. PROJ. ENGR.onrE TYPICAL TRAFFIC CONTROL PLANS REGIONAL ADM. REVISION DATE BY RECOMMENDED SIGN SPACING = X (1) RURAL ROADS & URBAN ARTERIALS 35-40 MPH 3504 RURAL ROADS & URBAN ARTERIALS 25-30 MPH 200'± (2) RESIDENTAL & BUSINESS DISTRICTS URBAN STREETS 25 MPH OR LESS 100'± (2) (1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS. (2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROADWAY CONDITIONS, OPTIONAL LONGITUDINAL BUFFER SPACE = B SPEED (MPH) 20 25 30 35 40 B (feet) 115 155 200 250 305 Buffer space may be adjusted (±) based on field conditions. —n v H a a 14 MAXIMUM CHANNELIZATION DEVICE SPACING (feet) MPH TAPER TANGENT 35-40 10-20 60 20-30 10-20 40 70717171© (OPTIONAL) 300' @ 20' M i 1000'± MAX & UP TO 2 DRIVEWAY, BUSINESS ACCESS, AND/OR INTERSECTING ROADWAYS (OTHERWISE, USE PILOT CAR OPERATION) cr w a_w U 0o Q FOR DRIVEWAY, BUSINESS ACCESS, AND INTERSECTING ROADWAY DETAILS: o + SEE TC420, SHEET 2. A ■ ■ ■ ■ WORK Milli AREA ■ ■ ■ SEE NOTE 4 1 X X I X I X 1 50'- 300' 36" MIN 36" MIN 36" MIN 36" MIN 24" ROAD BE VAHEAD DHROADHEPREPARED AHEADTO STOP MIN 36" MIN 36' MIN 36" MIN W20-1 W20-4 W20 -7B W20 -7A OPTIONAL IF 40 MPH OR LESS W21-1201 (W/R, B/O) LEGEND: K TEMPORARY SIGN LOCATION n 28" REFLECTIVE TRAFFIC CONE (SEE NOTE 3) ❑ OPTIONAL CHANNELIZATION DEVICE 'a PROTECTIVE VEHICLE (SEE NOTE 2) FLAGGER FILE NAME TIME DATE PLOTTED BY DESIGNED BY ENTERED BY CHECKED BY PROJ. ENGR. REGIONAL ADM. CAUsers1LintzF1OneDrive - Washington State 2:05:04 PM 4/2/2024 LintzF 0 R PROTECTIVE VEHICLE ROLL AHEAD DISTANCE = R STRATEGICALLY POSITION WORK VEHICLE TO PROTECT WORK CREW 40'- 80' RECOMMENDED. 24" 24" so ( N OPTIONAL IF 40 MPH OR LESS Lu *36" MIN 36" MIN 36" MIN 36" MIN J W Q W BE ROAD Q H H U PREPARED ONE LANE Z O o — ROAD WORK O Z O LLLI TO STOP AHEAD AHEAD CL w MIN 36" MIN 36" MIN 36" MIN O LLJ o + W20 -7A W20 -7B W20-4 W20-1 B X X X X ❑ Za NOTES: 1. AVOID PLACING LANE CLOSURE TAPERS WITHIN OR IMMEDIATELY FOLLOWING HORIZONTAL & VERTICAL CURVES BY ADJUSTING LONGITUDINAL BUFFER SPACE. 2. PROTECTIVE VEHICLE MAY ALWAYS BE USED ON ROADWAYS 40 MPH OR LESS, EVEN IF THE LONGITUDINAL BUFFER SPACE IS REDUCED OR ELIMINATED. ADDITIONAL PVs MAY BE ADDED AT SEPARATE WORK CREWS. 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): EXISTING EXISTING EXISTING EXISTING (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA SHOULDER LANE LANE SHOULDER (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC _ WORK AREA _ 10' MIN LANE OPEN (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) TO ALT. TRAFFIC 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL SEE NOTE 3 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. SECTION A -A 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. ACTUAL CENTERLINE PAVEMENT MARKINGS MAY VARY. ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE lent of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Plot 1 NO REGION STATE FED.AID PROJ.NO.dft PLAN REF NO 171 IWAS TC420 JOB NUMBER Washington State SHEET CONTRACT NO. LOCATION NO. Department of Transportation o GATE DATE TYPICAL TRAFFIC CONTROL PLANS SHEETS REVISION DATE BY P.E. STAMP BOX P.E. STAMP sox ■ • ■ ■ 10' M I N TRAANE _4U1 260' (OPTIONAL) NOTES: 1. AVOID PLACING LANE CLOSURE TAPERS WITHIN OR IMMEDIATELY FOLLOWING HORIZONTAL & VERTICAL CURVES BY ADJUSTING LONGITUDINAL BUFFER SPACE. 2. PROTECTIVE VEHICLE MAY ALWAYS BE USED ON ROADWAYS 40 MPH OR LESS, EVEN IF THE LONGITUDINAL BUFFER SPACE IS REDUCED OR ELIMINATED. ADDITIONAL PVs MAY BE ADDED AT SEPARATE WORK CREWS. 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): EXISTING EXISTING EXISTING EXISTING (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA SHOULDER LANE LANE SHOULDER (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC _ WORK AREA _ 10' MIN LANE OPEN (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) TO ALT. TRAFFIC 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL SEE NOTE 3 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. SECTION A -A 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. ACTUAL CENTERLINE PAVEMENT MARKINGS MAY VARY. ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE lent of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Plot 1 NO REGION STATE FED.AID PROJ.NO.dft PLAN REF NO 171 IWAS TC420 JOB NUMBER Washington State SHEET CONTRACT NO. LOCATION NO. Department of Transportation o GATE DATE TYPICAL TRAFFIC CONTROL PLANS SHEETS REVISION DATE BY P.E. STAMP BOX P.E. STAMP sox NOTES: 9. FOR LEGEND, TABLES, AND ADDITIONAL NOTES: SEE TC420, SHEET 1. 10. WORK MAY BRIEFLY OCCUR WITHIN LANE CLOSURE ACROSS INTERSECTING ROADWAY APPROACHES, BUSINESS ACCESSES, OR DRIVEWAYS. MAY HOLD APPROACH OR ACCESS TRAFFIC FOR 5 MINUTES OR LESS (ENGINEER MAY ACCEPT HOLDS UP TO 10 MINUTES) WHILE RESTRICTING TURNS FROM MAINLINE. CHANNELIZATION DEVICES DELINEATING APPROACH OR ACCESS MAY BE REMOVED OR RELOCATED AS NEEDED. 11. SINGLE FLAGGER (WITH RED FLAG/ RED GLOW CONE FLASHLIGHT) MAY BE ADDED TO THE INTERSECTING ROADWAY APPROACH TO HELP GUIDE ALTERNATING & TURNING TRAFFIC. x x x x 36" MIN 36" MIN*36 MIN /.\3 6" MIN 24" ROAD <AIOEA,LANEWORK RADAHEAD 36" MIN 36" MIN MIN 36" MIN W20-1 W20-4 W20-76 W20 -7A OPTIONAL IF 40 MPH OR LESS W21-1201 SIGN SEQUENCE A (W/R, B/O) 48"x48" signs required on 45+ mph roadways USE SIGN SEQUENCE A X 5' DEVICE T SPACING SEE NOTE 10 (OPTIONAL) SEE NOTE 11 WORK AREA UNSIGNALIZED INTERSECTING ROADWAY DETAIL SAME SIDE AS LANE CLOSURE (TWO OPEN LANES) USE SIGN SEQUENCE A WORK AREA 50' TAPER 6+ DEVICES 5' SPACING ,10'MINL ao, ■ WORK AREA P SEE 1 NOTE 10 Q1 W U iQ � DO � _- 6ACINGi WORK WORK AREA p` b o AREA SEE G ■ — — ■ — — � NOTE 10 a a — ■ — — ■ — DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA o a o -D o -0 ■ ■ 10' SPACING ACROSS D/W OR B. ACCESS O z (OPTIONAL) } -- SEE NOTE 11 � LU 0 }� i Qw D_ w USE SIGN SEQUENCE a zS: LU >< II z O Of o- 00 UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE 0 OPPOSITE OF LANE CLOSURE z X (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE U FILE NAME CAUserslLintzFlOneDrive -Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn W — Y —/— Washington State U TIME 2:05:04 PM REGION I STATE FED.AID PROJ.NO. DATE 4/2/2024 W PLOTTED BY LintzF DESIGNED BY H O Z o — Department of Transportation CHECKED BY CONTRACT NO. 5' SPACING ,10'MINL ao, ■ WORK AREA P SEE 1 NOTE 10 Q1 W U iQ � DO � _- 6ACINGi WORK WORK AREA p` b o AREA SEE G ■ — — ■ — — � NOTE 10 a a — ■ — — ■ — DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA o a o -D o -0 ■ ■ 10' SPACING ACROSS D/W OR B. ACCESS O z (OPTIONAL) -� -- SEE NOTE 11 � LU }� i Qw D_ w USE SIGN SEQUENCE A LU >< II z Of o- 00 UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED (HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUserslLintzFlOneDrive -Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn — Y —/— Washington State TIME 2:05:04 PM REGION I STATE FED.AID PROJ.NO. DATE 4/2/2024 PLOTTED BY LintzF DESIGNED BY JOB NUMBER ENTERED BY Department of Transportation CHECKED BY CONTRACT NO. LOCATION NO. PROJ. ENGR. REGIONAL ADM. REVISION DATE OATE�OATE P.E. STAMP BOX P.E. STAMP BOX TYPICAL TRAFFIC CONTROL PLANS Plot 2 PLAN REF NO TC420 SHEET 2 OF 4 SHEETS RECOMMENDED SIGN SPACING = X (1) RURAL ROADS & URBAN ARTERIALS 35-40 MPH 3504 RURAL ROADS & URBAN ARTERIALS 25 30 MPH 200'± (2) RESIDENTAL & BUSINESS DISTRICTS URBAN STREETS 25 MPH OR LESS 100'± (2) (1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS. (2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT ROADWAY CONDITIONS, mPCMS 1 2 FLAGGER 1 MILE AHEAD WATCH 4 STOPPED TRAFFIC 2.0 SEC 2.0 SEC FIELD LOCATE 1± MILE PRIOR TO FLAGGER OR PRIOR TO EXPECTED TRAFFIC QUEUE PER STD. SPEC. 1-10.3(3)C. MAXIMUM CHANNELIZATION DEVICE SPACING (feet) MPH TAPER TANGENT 35-40 10-20 60 20-30 10-20 40 ■ ■ ■ 500' MAX OR 0.1 MILE (SEE NOTE 1) (MINIMIZE DISTANCE BETWEEN MAINLINE FLAGGERS TO MINIMIZE DELAYS & TRAFFIC QUEUES) SEE NOTE 2 24" 24" W21-1201 (W/R, B/O) OPTIONAL IF 40 MPH OR LESS 36" MIN36" MIN 36" MIN 36" MIN RK W U W U �T> PREPARED ONELu Lu ZLANE ROAD ROAD > Lu > FOR DRIVEWAY, BUSINESS ACCESS, w TO STOP AH AD �AI0EAD o w AND INTERSECTING ROADWAY DETAILS: o w SEE TC420, SHEET 4. Q 36" MIN 36" MIN 36" MIN 36" MIN b +c) W20 -7A W20 -7B W20-4 W20-1 in LD ko 250'± MAX WORK AREA (SEE NOTE 1)R =40' X _x X _ o CI CI ° ■ ■ ■ ■ (OPTIONAL) 300' @ 20' 1 � X X X X 80 36" MIN 36" MIN 36" MIN 36" MIN 24" ROAD �ROAD" BE VAHEAD PREPARED ■� 1 MIN MIN TO STOP' 36" MIN 36" MIN W20-1 W20-4 W20 -7B W20 -7A OPTIONAL IF 40 MPH OR LESS W21-1201 (W/R, B/O) SEE NOTE 2 LEGEND: K TEMPORARY SIGN LOCATION ■ 28" REFLECTIVE TRAFFIC CONE (SEE NOTE 3) ° OPTIONAL CHANNELIZATION DEVICE 0 'a PROTECTIVE VEHICLE FLAGGER PCM mini PORTABLE CHANGEABLE MESSAGE SIGN (PCMS OK, SEE NOTE 8) FILE NAME DATE PLOTTED BY DESIGNED BY ENTERED BY CHECKED BY PROJ. ENGR. REGIONAL ADM. CAUserslLintzFlOneDrive - Washington State Department of 2:05:05 PM 4/2/2024 LlntzF REVISION WORK ° z AREA ■ ■ ■ ■®® SEE NOTE 4 10' MIN 80' 220'@ 20' � TRAFFIC (OPTIONAL) LANE_ EXISTING EXISTING EXISTING EXISTING SHOULDER LANE LANE SHOULDER _ WORK AREA _ 10' MIN LANE OPEN TO ALT. TRAFFIC SEE NOTE 31 0 � SECTION A ALTERNATING (HIGH Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn REGION I STATE FED.AID PROJ.NO. NO. 10 WAS JOB NUMBER CONTRACT NO. LOCATION N0. DATE BY 0 NOTES: 1. DISTANCE GREATER THAN 500' BETWEEN MAINLINE FLAGGERS REQUIRES ACCEPTANCE FROM REGION TRANSPORTATION OPERATIONS. THIS ENHANCED PLAN IS APPLICABLE TO HIGH VOLUME HIGHWAYS WITH 800+ VEHICLES/HOUR IN ALL DIRECTIONS. WORK AREA LENGTH ADJUSTS ACCORDINGLY. 2. FLAGGERS' GOAL IS TO MAXIMIZE TRAFFIC CAPACITY BY MINIMIZING TRAFFIC GAPS & LOST TIME. STRATEGIES: (A) WAVE SLOWER DRIVERS THRU TO "CLOSE THE GAP" (B) DON'T WAIT FOR APPROACHING TRAFFIC AFTER QUEUE RELEASED. LET THEM WAIT FOR THE NEXT TURN (C) EFFECTIVELY USE 2 -WAY RADIOS TO MINIMIZE LOST TIME WHEN CHANGING TRAFFIC RELEASE DIRECTIONS 3. MAY SHIFT LATERALLY. 36" TRAFFIC CONES, 42" TALL CHANNELIZATION DEVICES, OR TRAFFIC SAFETY DRUMS OK. 4. PEDESTRIAN & BICYCLIST ACCOMMODATIONS (ENGINEER TO ACCEPT ANY ALTERNATIVE STRATEGIES): (A) ALLOW PEDESTRIANS TO USE THE PAVED SHOULDER OR ADJACENT PATH OPPOSITE THE WORK AREA (B) COMBINE BIKES & VEHICULAR TRAFFIC. BIKES TO CLEAR PRIOR TO RELEASING ONCOMING TRAFFIC (C) PROVIDE FREE SHUTTLE (WORK TRUCK, VAN, OR BUS MAY BE USED) 5. SEE STANDARD SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS: 1-07.8(1) HIGH -VISIBILITY APPAREL 1-10.3(1)A FLAGGERS AND NIGHTTIME ILLUMINATION 1-10.3(2)A TRAFFIC CONTROL PROCEDURES 9-35.1 24 -INCH STOP/SLOW PADDLE SIZE 6. FOR PROJECT -SPECIFIC REQUIREMENTS, SEE SPECIAL PROVISIONS. 7. SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE INDICATED. 8. FULL-SIZE PCMS (1 Tx UDISPLAY) MAY BE USED IN LIEU OF mPCMSs. PCMS MESSAGES MAY BE MODIFIED. 9. EXISTING PAVEMENT MARKINGS MAY VARY. 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED VOLUME HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE OATE�DATE P.E. STAMP BOX P.E. STAMP BOX A Washington State Department of Transportation Plot 3 PLAN REF NO TC420 SHEET 3 OF TYPICAL TRAFFIC CONTROL PLANS SHEETS NOTES: 10. FOR LEGEND, TABLES, AND ADDITIONAL NOTES: SEE TC420, SHEET 3. 11. WORK MAY BRIEFLY OCCUR WITHIN LANE CLOSURE ACROSS INTERSECTING BUSINESS ACCESSES AND DRIVEWAYS ONLY. MAY HOLD ACCESS TRAFFIC FOR LESS THAN 1 MINUTE WHILE RESTRICTING TURNS FROM MAINLINE. CHANNELIZATION DEVICES DELINEATING APPROACH OR ACCESS MAY BE REMOVED OR RELOCATED AS NEEDED. 12. SINGLE FLAGGER (WITH RED FLAG/ RED GLOW CONE FLASHLIGHT) MAY BE ADDED TO THE INTERSECTING ROADWAY APPROACH TO HELP GUIDE ALTERNATING & TURNING TRAFFIC. 13. FLAGGERS MAY COLLABORATE TO RELEASE APPROACH/ACCESS AND MAINLINE TRAFFIC TRAVELING IN THE SAME DIRECTION CONCURRENTLY. x x x 36" MIN 36" MIN*36" MIN ROAD V36' WORK AHEAD 36" MIN MIN MIN W20-1 W20-4 W20-76 OPTIONAL IF 40 MPH OR LESS x 36" MIN 24" ■ 36" MIN • W20 -7A W21-1201 SIGN SEQUENCE A (W/R, B/O) 48"x48" signs required on 45+ mph roadways } USE SIGN SEQUENCE A o 0 z I— x LU L Qw W WUH 00 SEE NOTE 13 SEE NOTE 13t 5' DEVICE 5' SPACING PACIN Z WORK °o, WORK WORK WORK AREA AREA AREA p a o AREA SEE 0 OlQ SEE NOTE 11 'a 13 13 � NOTE 11 " _ ■ _ _ ■ (OPTIONAL) 1 j SEE NOTE 12 UNSIGNALIZED INTERSECTING ROADWAY DETAIL SAME SIDE AS LANE CLOSURE (TWO OPEN LANES) DETAIL NOT USED FOR HIGH VOLUME CONFIGURATIONS DRIVEWAY OR BUSINESS ACCESS DETAIL SAME SIDE AS LANE CLOSURE WORK AREA a 0 a 0 0 0 0 0 a 10' SPACING ACROSS D/W OR B. ACCESS 0 z U -- - i SEE NOTE 13 LU �'I U)j Ly W USE SIGN SEQUENCE A > z 00 UNSIGNALIZED INTERSECTING ROADWAY DETAIL UNSIGNALIZED INTERSECTING ROADWAY DETAIL DRIVEWAY OR BUSINESS ACCESS DETAIL OPPOSITE OF LANE CLOSURE SAME SIDE AS LANE CLOSURE (SINGLE OPEN LANE) OPPOSITE OF LANE CLOSURE ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGG ER -CONTROLLED (HIGH VOLUME HIGHWAYS, 40 MPH OR LESS) NOT TO SCALE FILE NAME CAUsersli-intzF10neDrive -Washington State Department of TransportationlDesktoplWork Zone TCPsl420Hwy4O-AitTraff!cFlagger.dgn Washington State Plot 4 TIME 2:05:05 PM R NO.N STATE FED.AID PROJ.NO. PLAN REF NO TC420 DATE 4/2/2024 10 was PLOTTED BY LintzF DESIGNED BY JOB NUMBER SHEET ENTERED BY P.E. STAMP BOX DATE P.E. STAMP BOX Department of Transportation F SHEETS CHECKED BY CONTRACT NO. LOCATION NO. PROJ. ENGR.onrE TYPICAL TRAFFIC CONTROL PLANS REGIONAL ADM. REVISION DATE BY WORK ZONE MICROSTATION CELLS: Updated work zone cells incorporated (April 2024). WSDOT CAE automatically updates cell libraries on WSDOT and on-site consultant staff computers (no action needed); however, external users or off-site consultants must manually install them. For additional information e-mail HQCAEHelpDesk@wsdot.wa.gov. Division 4 in WSDOT Plans Preparation Manual, Section 400.06(29), provides updated work zone cell library policy and information for PS&Es. See https://wsdot.wa.gov/engineering-standards/all-manuals-and-standards/manuals/plans-preparation-manual TYPICAL TCP USAGE EXPLANATION: Plot 1: Flagger-controlled 1 -lane, 2 -way alternating traffic on the mainline for 2 -lane highways 40 mph or less with a shared bicycle -vehicle lane. Plot 2: Details for intersecting roadways and driveway/business access for Plot 1. Plot 3: Flagger-controlled 1 -lane, 2 -way alternating traffic on the mainline for 2 -lane highways 40 mph or less with a shared bicycle -vehicle lane for high traffic volumes (800+ vehicles/hour in all directions) by minimizing the distance between mainline flaggers. Plot 4: Details for intersecting roadways and driveway/business access for Plot 3. Other Alternating Traffic TCPs (45+ mph): See Typical Traffic Control Plan Library (https://wsdot.wa.gov/engineering-standards/a II-manuals-and-standards/plan-sheet-Ii brary/work-zone-typical-traffic-control-plans-tcp) * TC320s for flagger-controlled alternating traffic plans * TC330s for AFAD-controlled alternating traffic plans * TC340s for temporary signal -controlled alternating traffic plans * TC350s for traffic holds If not published yet, they will be added in the future. Other Alternating Traffic TCPs (40 mph or less): See Typical Traffic Control Plan Library (https:Hwsdot.wa.gov/engineering-standards/a II-manuals-and-standards/plan-sheet-Ii brary/work-zone-typical-traffic-control-plans-tcp) * TC420s for other variations of flagger-controlled alternating traffic * TC430s for AFAD-controlled alternating traffic * TC440s for temporary signal -controlled alternating traffic plans * TC450s for traffic holds If not published yet, they will be added in the future. DESIGNER NOTES: A. Contact Region Transportation Operations to determine which Typical TCP(s) to utilize, as their are several variations available (or soon will be). B. These typical traffic control plans may be modified for site specific situations and/or WSDOT Region Transportation Operations standard practices. Typical TCPs are not "Standard Plans". C. Do not use intermittent (old: "variable") regulatory work zone speed limit reductions for flagging or AFAD operations. Instead, maintain the existing speed limit (or continuous regulatory work zone speed limit reduction, if applicable). See WSDOT Traffic Manual Section 5-18 and Executive Order E1060 regulatory speed limit reductions & advisory speed approval policy for work zones thru Region Transportation Operations. D. See MUTCD Table 6F-1 for additional temporary sign size information. Work zone signs are usually smaller than those used permanently. E. WAC 468-95-300 modifies MUTCD Table 6-1 "Recommended Advance Warning Sign Minimum Spacing". Sign spacing may be adjusted for field conditions based on engineering judgement. The Sign Spacing table is acceptable to use in Typical TCPs; however, site-specific traffic control plans should include actual sign spacing values (with A) that have been verified in the field, on SR view, or via Google Maps. F. When positioned behind channelizing devices, temporary signs should be mounted at 5' minimum. G. For this Typical TCP, the work zone design speed is based on the existing posted speed limit for sign spacing, channelizing device spacing, buffer, and roll ahead distances. H. "Flagger tapers" are always 50'-100' per closed lane with 6 devices minimum (10'-20' spacing on the taper), regardless of the posted speed limit or lane width per MUTCD 6C.08, Paragraph 15. Never use "L" for these tapers. I. Channelization devices types may be modified (vertical panel channelizing devices prohibited). 28" reflective traffic cones are recommended on flagger-controlled alternating traffic (especially for access delineation to maintain visibility for turning motorists). 36" reflective traffic cones, 42" tall channelizing devices, or traffic safety drums may be used. Warning lights on channelizing devices is being phased out in Washington. Contact Region Transportation Operations for information regarding their standard practices. J. Maximum channelizing device spacing table for tangents is based on WAC 468-95-301 and may ALWAYS be reduced. K. Sequential arrow boards are prohibited at flagger tapers per WSDOT standard practice and per MUTCD Guidance TA -10. L. Per MUTCD Section 6C.06, longitudinal buffer spaces are optional. Using longitudinal buffer spaces listed in MUTCD Table 6C-2 is recommended as best practice when feasible, but may be adjusted based on engineering judgement. The Longitudinal Buffer Space table is acceptable in Typical TCPs; however, site-specific traffic control plans should include actual buffer distances that have been verified in the field, on SR view, or via Google Maps. M. The lateral buffer (transverse distance between open travel lanes and work area) is optional. No lateral buffer has been provided in these Typical TCPs due to the low speeds of alternating traffic. Actual work area limits may be modified. N. On roadways 40 mph or less, WSDOT best practice is to place a protective vehicle (PV) in the closed lane in advance of the work area with a full longitudinal buffer space to provide errant vehicles an opportunity to stop before impacting the PV. On roadways 40 mph or less, the longitudinal buffer is optional and may be eliminated (still okay to use PV, upgrading to transportable attenuator is not required). Additional PVs (or TAs) may be added prior to multiple work crews within a work area. Contact Region Transportation Operations for their standard practice. 0. Placing channelizing devices transversely (at 450 and 5 -foot spacing) is an optional strategy to stop move errant drivers traveling within the closed lane(s) but is not shown in the Typical TCP. P. The downstream taper of 50'-100' is required on 1 -lane, 2 -way traffic configurations. Q. Duration of traffic holds for driveways, business accesses, and/or roadway approaches is listed as 5 minutes (1 minute on high volume highways) in this Typical Traffic Control Plan, but may be adjusted. Contact Region Transportation Operations for additional guidance. ALTERNATING 1 -LANE, 2 -WAY TRAFFIC: FLAGGER-CONTROLLED (HIGHWAYS, 40 MPH OR LESS) INFORMATIONAL USE ONLY DO NOT INCLUDE THIS SHEET IN CONTRACT PS&Es or TCP SUBMITTALs. DESIGNER GUIDANCE Plot 5 TC420