Intercity Transit 526 Pattison St TC-3 Single-Lane Closure Plan for Multi-Lane RoadwaysSIGN SPACING = X (1)
MINIMUM LANE CLOSURE TAPER LENGTH = L (feet)
FREEWAYS & EXPRESSWAYS 55 /70 MPH
LANE
Posted Speed (mph)
800'±
WIDTH
(feet)
25 30 35 40 45 50
55
60
65
70
10
105 150 205 270 450 500
550
1 730
TRANSPORTABLE ATTENUATOR ROLL AHEAD DISTANCE = R
HOST VEHICLE WEIGHT HICLE WEIGHT
9,900 TO 22,000 lbs. ,000 lbs.
11
115 165 225 295 495 550
605
660
-
-
12
125 180 245 320 540 600
660
720
780
840
SINGLE -LANE CLOSURE FOR MULTI -LANE
MINIMUM SHOULDER TAPER LENGTH = L/3 (feet)
SHOULDER
Posted Speed (mph)
20'(FT).
WIDTH
(feet)
25 1 30 35 40 45 50 55 60 65
70
81
40 40 60 90 120 130 150 1 160 170 1
190
10'
40 60 90 90 150 170 190 1 200 220 1
240
S:1Desi n R P& S41-Standardsl2-Plan Sheet Libra 102
USE A MINIMUM 3 DEVICES TAPER FOR SHOULDER LESS THEN 8'.
SIGN SPACING = X (1)
LONGITUDINAL BUFFER SPACE = B
FREEWAYS & EXPRESSWAYS 55 /70 MPH
1500'±
RURAL HIGHWAYS 60 /65 MPH
800'±
RURAL ROADS 45 /55 MPH
500'±
RURAL ROADS & URBAN ARTERIALS 35 /40 MPH
350'±
RURAL ROADS & URBAN ARTERIALS 25 /30 MPH
RESIDENTIAL & BUSINESS DISTRICTS
200'± (2)
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.
CHANNELIZATION DEVICE
SPACING (feet)
MMPTAPER TANGENT
480 30 60
20 40
BUFFER DATA
LONGITUDINAL BUFFER SPACE = B
SPEED (MPH) 40
25 30 35
45
50
55
60
65
70
LENGTH (feet) 155 1 200 1 250 1 305
360
425
495
1 570
1 645
1 730
TRANSPORTABLE ATTENUATOR ROLL AHEAD DISTANCE = R
HOST VEHICLE WEIGHT HICLE WEIGHT
9,900 TO 22,000 lbs. ,000 lbs.
55 MPH > 55 MPH
< 45 MPH 45-55 MPH > 55 MPHL2T1.
100' 123' 172' 150'
PCMS
1 2
RIGHT 1 MILE
LANE AHEAD
CLOSURE
2.0 SEC 2.0 SEC
FIELD LOCATE 1 MILE ± IN
ADVANCE OF LANE CLOSURE SIGNING.
9°
NOTES
RIGHT LANE
CLOSED
1. SEE SPECIAL PROVISIONS FOR WORK HOUR RESTRICTIONS.
LEGEND AHEAD
2. EXTEND DEVICE TAPER AT L/3 ACROSS SHOULDER.
48
3. DEVICES SHALL NOT ENCROACH INTO THE ADJACENT LANE.
N
TEMPORARY SIGN LOCATION
W20-51`11
4. USE TRANSVERSE DEVICES IN CLOSED LANE EVERY 1000'(FT)
®
TRAFFIC SAFETY DRUM
(RECOMMENDED).
�D
SEQUENTIAL ARROW SIGN
SINGLE -LANE CLOSURE FOR MULTI -LANE
5. DEVICE SPACING FOR THE DOWNSTREAM TAPER SHALL BE
ROADWAYS
TRANSPORTABLE ATTENUATOR
20'(FT).
PCMS
PORTABLE CHANGEABLE MESSAGE SIGN
6. ALL SIGNS ARE BLACK ON ORANGE.
NOT TO SCALE
FILE NAME
S:1Desi n R P& S41-Standardsl2-Plan Sheet Libra 102
-PSL Work in Pro ressTeml TCI -TC -17 Buffer Data table re IacementlTC-3.dgn
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DATE
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Washington State
Department of Transportation
Plot 1
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TIME 8,18,31 AM
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FED.AID PROJ.NO.
DATE 1/312018
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ENTERED BY
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TRAFFIC CONTROL PLAN
PROJ. ENGR.
REGIONAL ADM. REVISION DATE BY