ISSUE WITH ROW PERMIT TC-1BUFFER 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
9,900 TO 22,000 lbs.
HOST VEHICLE WEIGHT
> 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
300'
4;'
ONE LANE IT
ROAD
AHEAD
4a"
48" W20-4 48" W20-7A
ROAD BE
WORK PREPARED
AHEAD TO STOP
48" 48"
W20-1 W20-7111
W20-7B (OPTIONAL IF
40 MPH OR LESS)
LEGEND
4(4
FLAGGING STATION
K
TEMPORARY SIGN LOCATION
G
CHANNELIZING DEVICES
PROTECTIVE VEHICLE
SIGN SPACING = X (1)
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
INTERSECTIONS AND DRIVEWAYS.
(2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT
ROADWAY CONDITIONS.
50' TO 100,
I 6 DEVICE f
MI I
50' TO 100'
6 DEVICE
B I MIN.
E 13
KZ
x
x
WW2220-77AA
x
x
ONE LANE
ROAD
AHEAD
48"
W20.4
W20-7B (OPTIONAL IF
40 MPH OR LESS)
48" 48"
BE ROAD
PREPARED WORK
TO STOP AHEAD
48". 48" 48E 48"
. W20_711 ONE LANE W20-1
ROAD
AHEAD
48" 48"
W20-7A W20-4
X I X X I X
BE
PREPARED W20-713 (OPTIONAL IF
40 MPH OR LESS)
TO STOP
48"
W20-7B
48"
ROAD
CHANNELIZATION DEVICE
SPACING FEET
MPH
TAPER
TANGENT
50/65
10 TO 20
SO
35145
10 TO 20
60
25130
10 TO 20
40
WORK NOTES
AHEAD
48" 1. ALL SIGNS ARE BLACK ON ORANGE.
W20-1 2 EXTENDING THE CHANNELIZING DEVICE TAPER ACROSS
ONE -LANE, TWO-WAY TRAFFIC CONTROL
WITH FLAGGERS
NOT TO SCALE
SHOULDER IS RECOMMENDED.
3. NIGHT WORK REQUIRES ADDITIONAL ROADWAY LIGHTING AT
FLAGGING STATIONS. SEE THE STANDARD SPECIFICATIONS
FOR ADDITIONAL DETAILS.
4. SEE SPECIAL PROVISIONS FOR WORK HOUR RESTRICTIONS.
Plot 1
TIME 3:05:14 PM
arare
FED.AID PROJ.NO.
w7w
Washington State
Department of Transportation
uR RER
TC1
DATE 11212018
WAS
PLOTTED BY Ilddelf
DESIGNED BY
a°a eurean
EREET
"R
a"EET.
ENTERED BY
CHECKED By
TRAFFIC CONTROL PLAN
PROD. ENGR.
REGIONAL ADM.
REVISION
DATE
BY