sion of this standard to other formats or for incorrect results or damages resulting from its use.
G20-2
48" X 24"
48" X 24"
500’ min.
Median
Work Space
Min.
30’
L
Median
Flagger
Formula
Suggested Maximum
Desirable
Spacing of
Taper Lengths
Channelizing
**
Suggested
Sign
Longitudinal
Spacing
Devices
Buffer Space
"X"
12’
On a
On a
Offset Offset Offset
Taper
Tangent
11’
10’
Minimum
"B"
Distance
150’
165’
180’
30’
60’
120’
90’
205’
225’
245’
35’
70’
160’
120’
40
265’
295’
320’
40’
80’
240’
155’
45
450’
495’
540’
45’
90’
320’
195’
50
500’
550’
600’
50’
100’
400’
240’
55
550’
605’
660’
55’
110’
500’
295’
60
600’
660’
720’
60’
120’
600’
350’
65
650’
715’
780’
65’
130’
700’
410’
70
700’
770’
840’
70’
140’
800’
475’
75
750’
825’
900’
75’
150’
900’
540’
2
WS
L=
60
L=WS
(See notes
* Conventional Roads Only
** Taper lengths have been
rounded off.
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
B
100’ Min.
FRONTAGE RD.
TYPICAL USAGE
L
30’ Min.
Flag
*
4 & 5)
Work Space
Traffic Flow
Speed
(See notes 4 & 5)
Message Sign (PCMS)
Sign
Minimum
Posted
35
48" X 42"
Portable Changeable
M
Flashing Arrow Board
30
E5-1
Attenuator (TMA)
Trailer Mounted
Shoulder
Shoulder
500’ Min.
Min.
Heavy Work Vehicle
G20-2
Work Space
500’ Min.
30’
Shoulder
Shoulder
Shoulder
Shoulder
G20-2
48" X 24"
MOBILE
E5-2
48" X 36"
SHORT
SHORT TERM
DURATION
STATIONARY
INTERMEDIATE
LONG TERM
TERM STATIONARY
STATIONARY
GENERAL NOTES
1. Flags attached to signs where shown, are REQUIRED.
1/3 L
B
1000’
(See notes 4 & 5)
Median
2. All traffic control devices illustrated are REQUIRED, except those
denoted with the triangle symbol may be omitted when stated elsewhere
in the plans, or for routine maintenance work, when approved by the
Engineer.
L
with the Chevron Alignment Sign placed on every other channelizing
device.
L
Shoulder
3. Channelizing devices used to close lanes may be supplemented
Chevrons may be attached to plastic drums as per BC Standards.
4. Shadow Vehicle with TMA and high intensity rotating, flashing,
oscillating or strobe lights.
A Shadow Vehicle with a TMA should be
used anytime it can be positioned 30 to 100 feet in advance of the area
1/3 L
of crew exposure without adversely affecting the performance or
quality of the work. If workers are no longer present but road or
Barricades or other channelizing devices may be substituted for the
1/3 L
1000’
work conditions require the traffic control to remain in place, Type 3
CW20-5TR
48" X 48"
Shadow Vehicle and TMA.
5. Additional Shadow Vehicles with TMAs may be positioned in each
closed lane, on the shoulder or off the paved surface, next to those
1600’
CW25-1T
48" X 48"
For construction or maintenance contract work, specific
Channelizing
Devices at
20’ spacing
project requirements for shadow vehicles can be found
in the project GENERAL NOTES for Item 502,
Barricades, Signs and Traffic Handling.
CW20-5TR
48" X 48"
See TCP(1-5a)
for traffic
control
devices
See TCP(1-4a) for lane
for lane
closure
500’
FILE: P:\82\87\02\Design\Civil\Standards\TCP\tcp1-5.dgn
shown in order to protect a wider work space.
48" X 30"
n.
Mi
DATE: 3/21/2015
’
10
10:37:38 AM
R11-2bT
2600’
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conver-
Channelizing Devices
Truck Mounted
DISCLAIMER:
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
LEGEND
Type 3 Barricade
Texas Department of Transportation
closure details if a
Traffic Operations Division
lane closure is needed
to close a lane which
is normally required
See TCP(1-5a)
TRAFFIC CONTROL PLAN
to enter the ramp.
for advance
warning signs
LANE CLOSURES FOR
for lane closure
CW20-1F
TCP (1-5a)
See note 1)
DIVIDED HIGHWAYS
See TCP(1-5a)
48" X 48"
for advance
(Flags-
warning signs
TCP (1-5b)
for lane closure
TCP (1-5c)
TCP(1-5)-12
CW20RP-3D
48" X 48"
C TxDOT February 2012
ONE LANE CLOSURE
LANE CLOSURE NEAR EXIT RAMPS
REVISIONS
LANE CLOSURE NEAR ENTRANCE RAMPS
DN: TXDOT
CONT
SECT
0902 48
155
CK: TXDOT
DW: TXDOT
CK: TXDOT
JOB
HIGHWAY
058
VA
DIST
COUNTY
SHEET NO.
FTW
TARRANT
34