Trafic control planBUFFER 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
LEGEND
SIGN
SPACING = X (1)
TAPER
RURAL HIGHWAYS
= L (feet)
60 /65 MPH
800'±
RURAL ROADS
WIDTH
(feet)
45 /55 MPH
5D0'±
RURAL ROADS & URBAN
ARTERIALS
35 /40 MPH
350'±
RURAL ROADS & URBAN
RESIDENTAL & BUSINESS
ARTERIALS
DISTRICTS
25 / 30 MPH
200'± (2)
URBAN STREETS
11
25 MPH OR LESS
100'± (2)
(1) ALL SPACING MAY BE ADJUSTED
RAMPS, AT -GRADE INTERSECTIONS
(2) THIS SPACING MAY BE REDUCED
ROADWAY CONDITIONS.
TO ACCOMMODATE INTERCHANGE
AND DRIVEWAYS.
IN URBAN AREAS TO FIT
48'
ROAD
WORK
AHEAD
4e•
W20-1
K
MINIMUM
TAPER
LENGTH
= L (feet)
LANE
Posted Speed (mph)
WIDTH
(feet)
25 30
35 40
45 50
55
60 65 70
10
105 150
205 270
450 500
550
11
115 165
225 295
495 550
605
660 - -
12
125 180
245 320
540 600
660
720 780 -
48'
ROAD
WORK
AHEAD
4e•
W20-1
K
TEMPORARY SIGN LOCATION AHEAD
13
CHANNELIZING DEVICES
t>>D
SEQUENTIAL ARROW SIGN W20 -51L
TRANSPORTABLE ATTENUATOR
PCMS
PORTABLE CHANGEABLE MESSAGE SIGN
E
TEMPORARY SIGN LOCATION (5 -MOUNTING HEIGHT)
LANE SHIFT -THREE LANE ROADWAY
NOT TO SCALE
CHANNELIZATION DEVICE
SPACING feet
MPH TAPER TANGENT
50/60 40 80
35/45 30 60
25/30 20 1 40
PCMS #1
1 2
LEFT 1 MILE
LANE AHEAD
CLOSURE
2.0 SEC 2.0 SEC
FIELD LOCATE IN ADVANCE
OF TEMPORARY SIGNS.
PCMS #2
1 2
LANE 1 MILE
SHIFTS AHEAD
LEFT
2.0 SEC 2.0 SEC
FIELD LOCATE IN ADVANCE
OF TEMPORARY SIGNS.
)R WORK HOUR RESTRICTIONS.
2. FOR SPEED LIMIT OF 30 MPH OR LESS, USE SIGN W1-3 IN LIEU OF SIGN W1-4.
3. RECOMMENDED EXTENDING DEVICE TAPER (U3) ACROSS SHOULDER.
4. ALL SIGNS ARE BLACK ON ORANGE UNLESS OTHERWISE DESIGNATED.
TIME 2:34:58 PMs lE FED.AID PROJ.NO. � xnx Rv xo
DATE 1/212018 �
PLOTTED BY IlddeM x WAS �I/ TC12
DESIGNED BY +oe xU. R
ENTERED BY Washington State ..EET
CHECKED BY cox.Rnm x Eounox xo. Department of Transportation of
PROJ. ENGR. rz DATE TRAFFIC CONTROL PLAN xx
REGIONAL ADM. REVISION DATE BY