TC-15CHANNELIZATION DEVICE
SPACING feet
MPH
TAPER
TANGENT
50170
40
80
35145
30
60
25/30
20
40
MINIMUM TAPER LENGTH = L (feet)
LANE
Posted Speed (mph)
WIDTH
(feet)
25
30
35
40
45
50
55
60
65
70
10
11
105
115
150
165
205
225
270
295
450
495
500
550
550
605
660
-
-
12
125
180
245
320
540
600
660
720
-
-
Irv=uv uu_uaruuvuuuaruv — — — — — — — — — —
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
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
INTERSECTION LANE CLOSURE -FIVE LANE ROADWAY
NOT TO SCALE
SIGN SPACING = X (1)
RURAL HIGHWAYS 60165 MPH
800'1
RURAL ROADS 45/55 MPH
500'1
RURAL ROADS & URBAN ARTERIALS 35/40 MPH
350'±
RURAL ROADS & URBAN ARTERIALS 25 / 30 MPH
RESIDENTAL & BUSINESS DISTRICTS
200'± (2)
URBAN STREETS 25 MPH OR LESS
100'± (2)
(1) ALL SPACING MAY BE ADJUSTED TO ACCOMMODATE INTERCHANGE
RAMPS, AT -GRADE INTERSECTIONS AND DRIVEWAYS.
(2) THIS SPACING MAY BE REDUCED IN URBAN AREAS TO FIT
ROADWAY CONDITIONS.
1O OPTIONAL IF 40 MPH OR LESS
NOTES
1. RECOMMEND EXTENDING DEVICE TAPER (U3) ACROSS SHOULDER.
2. IF A SIGNAL IS PRESENT, IT SHALL BE SET TO "RED FLASH MODE"
OR TURNED OFF DURING FLAGGING OPERATIONS.
3. MAINTAIN A MINIMUM OF ONE ACCESS POINT FOR EACH BUSINESS
WITHIN WORK AREA LIMITS.
4. ALL SIGNS ARE BLACK ON ORANGE.
TIME 7:31:30 AM s lE FED.AID PROJ.NO. Amokxnx xsr xo
DATE 11912018 Y�/�
PLOTTED BY Ilddelf x WAS �I/ TC15
DESIGNED BY +ox xuxsEx
ENTERED BY Washington State sxEE.
CHECKED BY cox.xnm x Lo Tio x Department of Transportation o.
PROJ. ENGR. s DATE TRAFFIC CONTROL PLAN xx�
REGIONAL ADM. REVISION DATE BY