ENG20190385 Revision Rec'd 11.20.19.pdfTCP 708: to be used for pole attachment work through intersection.
TCP 29: for short duration traffic hold for overlashing
Note: Spotter to escort pedestrians through work zone.
ROAD I I
WORK ► I I
AHEAD
KEEP ( I W4-2R W9-311 W20-1
L~ I I WITH
W4-7A o I ( RIGHi ROAD
<#>IANE WORK
Spotter WITH I ( ( ( I Spotter pj{ p
< >
50' MIN 100'MAX TRUCK AHEAD
ROLL SPACING TAPER LENGTH
M111��� t �. (SEE TABLE A)
WISEE SEE SEE
TH
WORK FLASHING J
AREA BEACON ( '_ / _ , NOTE 1 NOTE 1 _, _ NOTE 1
1—
Hwy 212
--►
Uniformed police office
and flaggers to direct /
hold traffic for overlash
work crossing
intersection (TCP 29
TABLE A
SPEED
(MPH)
TAPER LENGTH
FOR SHIFT WIDTH
CONE SPACING
ALONG TAPER
(FT)
10'
12'
25
105'
1 125'
25
30
150'
180'
30
35
205'
245'
35
40
270'
320'
40
45
j 450'
540'
1 45
Overlash
I �t1T o
ROAD
WORK
AHEAD
W20-1
Hwy 99
TCP I For Overlash
work south of intersection
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— ---I-- -- I — — — — — ——
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NOTES
1. DISTANCE BETWEEN SIGNS SHALL BE 100' FOR
RESIDENTIAL STREETS (25 MPH) AND 350' FOR
ARTERIAL ROADWAYS
2. FLASHING BEACON INSTALLED AT EACH SIGN FOR
NIGHT-TIME USE (OPTIONAL).
3. DISTANCES MAY VARY AS APPROVED BY THE
ENGINEER.
4. SPOTTERS REQUIRED WHENEVER THE CONTRACTOR
MUST INTERRUPT TRAFFIC FLOW TO ACCESS THE
WORK SITE WITH MATERIALS OR EQUIPMENT
(FLAGGING REQUIRES 3 OR 4 SIGN SETUP).
5. SIGN SIZE PER MUTCD.
6. THIS PLAN IS PROVIDED AS A GUIDE ONLY. FOR
SPECIFIC INFORMATION ON TRAFFIC CONTROL PLANS
SEE CURRENT MUTCD.
LEGEND
�O CONE OR CHANNELIZING DEVICE SEE STANDARD
DRAWING 713.
TRAFFIC CONTROL PLAN
5 LANE ROADWAY WITH RIGHT LANE 708
CLOSURE FAR SIDE OF INTERSECTION
v
0
WORK ZONE CONDITION (SEE CHAPTER 1.9.10)
A - ALLOWED - CONSIDER USING A SPOTTER.
B - ALLOWED - SPOTTER RECOMMENDED
CONSIDER ADDITIONAL WARNING SIGNS.
C - NOT ALLOWED - SEE TCP 14 & 15 FOR
ADDITIONAL WORK ZONE REQUIREMENTS.
UNIFORMED POLICE OFFICER TO
DIRECT/HOLD TRAFFIC FOR SHORT
DURATION DURING OVERLASH WORKAT
INTERSECTION OF HWY 99 & 212TH ST SW.
N------------------ ------------------------------------
Overlash
I Fr:Fnln
® WORK VEHICLE W/ WARNING BEACON
° (LOCATE TO SHIELD WORK VEHICLE)
SO SPOTTER
ME
Iv A
O 4
N O
00 ON
HWY 99
SIGHT DISTANCE DATA
MINIMUM STOPPING SIGHT DISTANCE = S
SPEED LIMIT
25
30
35
40
45
50
55
60
65
70
MPH
DISTANCE
FEET
155
200
250
305
360
425
495
570
645
730
DISTANCES SHOWN ARE MINIMUMS, USE ADDITIONAL DISTANCE WHEN POSSIBLE.
GENERAL LIMITS OF
CHANNELIZED INTERSECTION
---- Z12th--Sf-SW--------- -----------
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NOTES:
1. Work vehicle w/beacon located in same quadrant as
work location.
2. Repeated access to work lane not allowed. see tcp
14 & 15 for work zone requirements - condition "C".
3. Restricted sight distance requires additional advance
warning devices or signs, see sight distance data chart.
4. Recommend working during red phase if signalized.
5. See chapter 1.9.10 - 1.9.11 for additional direction .
TYPICAL VERY SHORT DURATION WORK OPERATION
(INTERSECTION APPLICATION)
TCP 29
0
0
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Cfl
L1
C
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v1
TCP 708- to be used for pole attachment work through intersection.
TCP 29: for short duration traffic hold for overlashing
Note: Spotter to escort pedestrians through work zone.
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
TMA ROLL AHEAD DISTANCE = R
HOST VEHICLE WEIGHT
9,900 TO 22,000 Ibs.
HOST VEHICLE WEIGHT
> 22,000 Ibs.
< 45 MPH
1 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
MINIMUM TAPER LENGTH = L (feet)
LANE
WIDTH
(feet)
Posted Speed (mph)
25 30 35 40 45 50 55 60 65 70
10
105
150
205
270
450
500
550
1 -
I -
I -
11
115
165
225
295
495
550
605
660
-
-
12
125
180
245
320
540
600
660
720
1 780
840
MINIMUM SHOULDER TAPER LENGTH = L/3 (feet)
SHOULDER
Posted Speed (mph)
WIDTH
WIDTH
25
1 30
1 35
1 40
1 45
50
55
60
65
70
8'
40
1 40
1 60
1 90
1 120
11 130
150
160
170
190
10'
40
1 60
1 90
1 90
1 150
1 170
1 190
1 200
1220
240
USE A MINIMUM 3 DEVICES TAPER FOR SHOULDER LESS THEN W,
SIGN SPACING = X (FEET) ( 1 )
FREEWAYS & EXPRESSWAYS
55170 MPH
1500'+-
RURAL HIGHWAYS
60/65 MPH
800'±
RURAL ROADS
45/55 MPH
500'±
RURAL ROADS & URBAN ARTERIALS
35/40 MPH
3501±
RURAL ROADS, URBAN ARTERIALS
RESIDENTIAL & BUSINESS DISTRICTS
25130 MPH
200'± (2)
URBAN STREETS
25 MPH OR LESS
100'± (2)
ALL SIGNS ARE 48" X 48" BLACK ON ORANGE UNLESS OTHERWISE
DESIGNATED.
(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.
HWY 99
— — — — — — — — ®®—® --
O ®® ® ¢ WORKAREA
a a a
SEE
NOTE4
X X X Ug L B R
ROAD Spotter
WORK nni-N
AHEAD
W20-1 W4-2(L) NIGHT LANECLOSED FA,
AHEAD
W20-5N
DI
SIGN LOCATION
CDD
ARROW BOARD
® ® ®
TRAFFIC SAFTEY DRUMS/TALL CHANNELIZATION DEVICES
a ® ®
CHANNELIZING DEVICES
TMA
PCMS
PORTABLE CHANGEABLE MESSAGE SIGN (RECOMMENDED)
NOTES
1. A TMA is required for roadway 45 mph or higher. For roads 40 mph or less -
If a TMA is not available, the protective vehicle shall be strategically located in
the field to shield workers and no roll ahead distance is specified.
2. Extend device taper across shoulder.
3. Devices should not encroach into adjacent lanes, see sheet TCP 16 for
encroachment detail. The 2' lateral buffer is recommended.
4. Use transverse devices in closed lane every 1000' - when work operation
allows.
5. Traffic safety drums or tall channelization devices required for all lane
closure tapers on roadway 45 mph or higher. (Half spacing required for tall
channelization devices).
6. When used, device spacing for the downstream taper should be 20' O.C.
7. Coordinate with Region Traffic office for work hour restrictions.
(SAMPLE MESSAGE)
PCMS
1 2
RIGHT 1
LANE MILE
CLOSED AHEAD
2.0 SEC 2.0 SEC
FIELD LOCATE 1 MILE ± IN
ADVANCE OF LANE CLOSURE TAPER.
TYPICAL SINGLE -LANE CLOSURE FOR MULTI -LANE ROADWAYS
TCP 3
CHANNELIZING DEVICE SPACING (FEET)
MPH
TAPER
TANGENT
/ 70
50/70
40
80
35 / 45
30
60
25 / 30
20
40
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