HomeMy WebLinkAboutCM_Constuction_Mitigation_Description_SapphireOnTalbot_181101_v1.pdfBUFFER 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 Ibs. I > 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'
ONE LANE .�
ROAD
AHEAD
48"
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
FLAGGING STATION
b TEMPORARY SIGN LOCATION
D CHANNELIZING DEVICES
PROTECTIVE VEHICLE
SIGN SPACING = X (1)
FED.AID PROJ.NO.
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'
6 DEVICE
MIN I I R
O AREA
59TO 100'
6 DEVICE
W20 -7A
ONE LANE
ROAD
AHEAD�
W20-4
W20_7B (OPTIONAL IF
40 MPH OR LESS)
48" 48'
BE ROAD
PREPARED WORK
To STOPrr AHEAD
48" 48" 48. 48'
Or . W20-713ONE LANE W20.1
ROAD
AHEAD
48" 48"
W20 -7A W20-4
BE
PREPARED > W20-713 IONAL IF
40 MPH ..RPT
LESS)
TO STOP
48'
W20 -7B
48'
ROAD
CHANNELIZATION DEVICE
SPACING (FEET)
MPH TAPER TANGENT
50/65 10 TO 20 80
35/45 10 TO 20 60
25/30 1 10 TO 20 40
WORK NOTES
AHEAD
48' 1. ALL SIGNS ARE BLACK ON ORANGE.
ONE -LANE, TWO-WAY TRAFFIC CONTROL
WITH FLAGGERS
NOT TO SCALE
2. EXTENDING THE CHANNELIZING DEVICE TAPER ACROSS
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 PMs•"•s
"WAS
FED.AID PROJ.NO.
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Washington State
Department of Transportation
.ss
TC7�
DATE 1/212018
PLOTTED BY Ilddelf
DESIGNED BY +". x ... Ex
sx.E.
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ENTERED BY
CHECKED BY c"x.xnm x"wnox
xo.
TRAFFIC CONTROL PLAN
PROJ. ENGR.
REGIONAL ADM. REVISION DATE BY