HWA TC Plan.pdfBUFFER DATA
LONGITUDINAL BUFFER SPACE = B
SPEED (MPH)
25
1 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 bs.
HOST VEHICLE WEIGHT
> 22,000 bs.
< 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
x X
48•
ONE LANE
ROAD
AHEAD
48•
48' W20-4 48-
ROAD BE
WORK PREA
AHEAD TO
48- 48'
W2O7B
40 MP
LEGEND
T4
FLAGGING STATION
11
TEMPORARY SIGN LOCATION
°
CHANNELZING DEVICES
PROTECTIVE VEHICLE
SIGN SPACING = X (1)
RURAL HIGHWAYS 60 165 MPH
800'1:
RURAL ROADS 45155 MPH
500'±
RURAL ROADS 8 URBAN ARTERIALS 35 /40 MPH
3501±
RURAL ROADS, URBAN ARTERIALS, 25 130 MPH
RESIDENTIAL & BUSINESS DISTRICTS
200'± (2)
URBAN STREETS 25 MPH OR LESS
1001±
(1)ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE
INTERSECTIONS AND DRIVEWAYS.
(2) THIS SPACING MAY BE REDUCED N URBAN AREAS TO FIT
ROADWAY CONDITIONS.
Dimension: 101W X 301
50, TO 100, 50' TO 100,
6 DEVICE H� 6 DEVICE
M� I
p w R ° .
I
X X 50- TO
300
48•
• I
0
.�
al
of
48•
W20-7A40CI
UNI F.\T HAS BEEN REI'IF W F.D FOR GENERAL Z I
IP.ATIBII.ITVWITIIDESIGN CONCEPTANDTIIE -I
I
1.011 LNG IS NOTED: I
..0 E\CEP'TIONST.AKEN
MAKE CORRECTIONS NOTED
SCBMIT ' ,F 1 IED ITEM
RE11S AN ESl'BIIJT
REJ / I
f c I .f:
W20.7B (OPTIONAL IF
40 MPH OR LESS)
48' 48-
8E ROAD
PREPARED WORK
TD sraP AHEAD
48' �� 48• 48-
W20-70 ONE LANE W20.1
� ROAD
AHEAD
48• IB'
W20.7A W20-4
X x x x
Moo LAt4a Wit) iN , IC'
W\2�0/7A BE
PREPMEO W20.7B (OPTIONAL IF
40 MPH OR LESS)
TO STOP
x 49. 48"
ONE LANE W20-78
ROAD
AHEAD
x 48' 48'
W20 a ROAD
CHANNELIZATION DEVICE
SPACING (FEET)
!APH
TAPER TANGENT
50/65
10 TO 20 60
35/45
1 10 TO 20 60
2v�o
m TO .o
WORK NOTES
AHEAD
48' 1- ALL SIGNS ARE BLACK ON ORANGE.
W20-1 2 EXTENDING THE CHANNELIZING DEVICE TAPER ACROSS
;M-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.
Pbt
YNE 14 PH •'"^ FEDAID PROJ NO.
DATE 1l
PLATTED BY 040eY
DESIGNED BY As HWA Fig. 6 Tc'I
ENTERED BY m � Washington State
CHECKED BY Department of Transportation a
PROJ. ENDR.
REGIONAL ADM R=V.S IN DATE Lry _- _ TRAFFIC CONTROL PLAN