TRAFFIC CONTROL PLAN (6)SIGN SPACING = X (1)
RURAL ROADS & URBAN ARTERIALS 35 140 MPH 350'±
RURAL ROADS, URBAN ARTERIALS, 25 130 MPH 200'± (2)
RESIDENTIAL & BUSINESS DISTRICTS
URBAN STREETS 25 MPH OR LESS 1001± (2)
(1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE
INTERSECTIONS AND DRIVEWAYS.
(2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT
ROADWAY CONDITIONS.
BUFFER DATA
MINIMUM SHOULDER TAPER LENGTH = L/3 (feet)
SHOULDER
Posted Speed (mph)
WIDTH
(feet)
25 30 35 40 45 50 55 60 65 70
8'
40 40 60 90 - - - - - -
10'
40 60 90 90
LENGTH (feet)
USE A 3 DEVICES TAPER FOR SHOULDERS LESS THEN 8'
BUFFER DATA
LONGITUDINAL BUFFER SPACE = B
SPEED (MPH)
25
30
35
40
45 50
55 60
65 70
LENGTH (feet)
155
200
250
305
360 425
495 570
645 730
TRANSPORTABLE ATTENUATOR ROLL AHEAD DISTANCE = R
HOST VEHICLE WEIGHT HOST VEHICLE WEIGHT
9,900 TO 22,000 lbs. > 22,000 lbs.
< 45 MPH
45-55 MPH
> 55 MPH < 45 MPH
45-55 MPH
> 55 MPH
100'
123'
172' 74'
100'
150'
PROTECTIVE VEHICLE (WORK VEHICLE) = R
NO SPECIFIED DISTANCE REQUIRED
b 4 ® ® �¢ WORK AREA
X X L/3 B R 50'
48' 48"
ROAD
WORK SHOULDER
AHEAD WORK
48' 48"
W20-1 W21-5
CHANNELIZATION DEVICE
SPACINGfeet
MPH TAPER TANGENT
35/40 30 60
25/30 20 40
NOTES
LEGEND
1. DEVICE SPACING FOR THE DOWNSTREAM TAPER SHALL BE 20'(FT).
K TEMPORARY SIGN LOCATION SHOULDER CLOSURE -LOW SPEED 2. ALL SIGNS ARE BLACK ON ORANGE.
O CHANNELIZING DEVICES
(40 MPH OR LESS)
PROTECTIVE VEHICLE
NOT TO SCALE
FILE NAME S:\Desi n R P& S1-Standardsl2-Plan Sheet Libra 101 -Published PSL\ TC Work Zone Traffic Control\ TC -5 Shoulder Closure - Low Speed 40 MP or Less)\TC-5.dgn Plot 1
TIME 2,59,41 PM —Tr FED.AID PROJ.NO. Amok
Rux Rv
DATE 1/212018 Y�/�
PLOTTED BY Ilddslf WAS �I/ TCS
DESIGNED BY Joe xo..ER
ENTERED BY Washington State ....
CHECKED BY coxTRnm x iounox "". Department of Transportation oR
PROJ. ENGR. re " E TRAFFIC CONTROL PLAN
REGIONAL ADM. REVISION DATE BY