The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
CW20-4
Warning Sign Sequence
Channelizing Devices
Type 3 Barricade
48" X 48"
in Opposite Direction
Truck Mounted
Same as Below
Heavy Work Vehicle
Attenuator (TMA)
CW3-4
Trailer Mounted
48" X 48"
Message Sign (PCMS)
X
48" X 24"
R1-2
Portable Changeable
M
Flashing Arrow Board
(See note 2)
G20-2
Sign
Traffic Flow
Flag
Flagger
CW20-1D
42" X 42 " X 42"
48" X 48"
(Flags-
X
Temporary
See note 1)
100'
Yield Line
Minimum
(See Note 2)
Posted
Formula
Spacing of
Channelizing
**
Devices
X
Speed
*
R1-2aP
Approx.
30'
60'
120'
90'
200'
35'
70'
160'
120'
250'
40
265'
295'
320'
40'
80'
240'
155'
305'
45
450'
495'
540'
45'
90'
320'
195'
360'
50
500'
550'
600'
50'
100'
400'
240'
425'
G20-2
55
550'
605'
660'
55'
110'
500'
295'
495'
48" X 24"
60
600'
660'
720'
60'
120'
600'
350'
570'
65
650'
715'
780'
65'
130'
700'
410'
645'
70
700'
770'
840'
70'
140'
800'
475'
730'
75
750'
825'
900'
75'
150'
900'
540'
820'
60
* Conventional Roads Only
** Taper lengths have been rounded off.
2
0
0
'
Work Space
2
WS
L=
L=WS
at night
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
(See Note 2)
100
'
100' Approx.
Shadow Vehicle with
TMA and high intensity
rotating, flashing,
TYPICAL USAGE
Devices at
Min.
30'
"B"
180'
illuminated
Min.
Distance
245'
shall be
24" Stop Line
On a
Tangent
Distance
165'
flagger stations
Temporary
On a
Taper
Sight
Buffer Space
225'
24" X 18"
emergencies,
12'
11'
Longitudinal
150'
CW16-2P
Except in
"X"
Stopping
Suggested
Sign
205'
X
100'
spacing on the Taper
30
35
Min.
100'
Devices at 20'
48" X 48"
Minimum
Spacing
Offset Offset Offset
10'
CW20-7
48" X 36"
(See note 9)
Suggested Maximum
Desirable
Taper Lengths
20' spacing
MOBILE
SHORT
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
oscillating or strobe
lights.(See notes 6 & 7)
DISCLAIMER:
spacing on the Taper
42" X 42 " X 42"
15'
Yield Line
high intensity
rotating,
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.
3. The CW3-4 "BE PREPARED TO STOP" sign may be installed after the CW20-4 "ONE LANE
ROAD XXX FT" sign, but proper sign spacing shall be maintained.
4. Flaggers should use two-way radios or other methods of communication to control traffic.
flashing,
R1-2aP
Temporary
with TMA and
Min.
R1-2
1. Flags attached to signs where shown, are REQUIRED.
Work Space
50' Min.
Devices at 20'
100' Max.
Shadow Vehicle
30'
B
GENERAL NOTES
oscillating or
5. Length of work space should be based on the ability of flaggers to communicate.
strobe lights.
6. A Shadow Vehicle with a TMA should be used anytime it can be positioned 30 to 100 feet
in advance of the area of crew exposure without adversely affecting the performance or quality of
(See notes 6 & 7)
48" X 36"
the work.
(See note 9)
B
Vehicle and TMA.
20' spacing
on the Taper
Except in
48" X 48"
X
in order to protect a wider work space.
TCP (2-2a)
8. The R1-2 "YIELD" sign traffic control may be used on projects with approaches that have adequate sight
emergencies,
distance. For projects in urban areas, work space should be no longer than one half city block.
flagger stations
In rural areas, roadways with less than 2000 ADT, work space should be no longer than 400 feet.
shall be
9. The R1-2aP "YIELD TO ONCOMING TRAFFIC" sign shall be placed on a support at a 7 foot minimum
illuminated
mounting height.
X
at night
CW3-4
48" X 48"
Temporary
(See note 2)
24" Stop Line
(See Note 2)
TCP (2-2b)
10.Channelizing devices on the center line may be omitted when a pilot car is leading traffic and
approved by the Engineer.
X
11.If the work space is located near a horizontal or vertical curve, the buffer distances should be
increased in order to maintain stopping sight distance to the flagger and a queue of stopped vehicles.
CW20-4D
X
7. Additional Shadow Vehicles with TMAs may be positioned off the paved surface, next to those shown
CW16-2P
24" X 18"
X
48" X 48"
100' Max.
Devices at
50'Min.
X
CW20-7
W3-2
If workers are no longer present but road or work conditions require the traffic control
to remain in place, Type 3 Barricades or other channelizing devices may be substituted for the Shadow
(See Note 2)
(See table above).
48" X 48"
12.Flaggers should use 24" STOP/SLOW paddles to control traffic. Flags should be limited to
X
emergency situtations.
CW20-4
48" X 48"
Texas Department of Transportation
G20-2
Traffic Operations Division
48" X 24"
TRAFFIC CONTROL PLAN
For construction or
maintenance contract
CW20-1D
48" X 48"
G20-2
(Flags-
48" X 24"
CW20-1D
48" X 48"
See note 1)
(FlagsSee note 1)
TCP (2-2a)
TCP (2-2b)
2-LANE ROADWAY WITHOUT PAVED SHOULDERS
2-LANE ROADWAY WITHOUT PAVED SHOULDERS
FILE:
DATE:
ONE LANE TWO-WAY
CONTROL WITH YIELD SIGNS
(Less than 2000 ADT - See Note 9)
ONE LANE TWO-WAY
work, specific project
ONE-LANE TWO-WAY
requirements for
shadow vehicles can
TRAFFIC CONTROL
be found in the project
GENERAL NOTES
for Item 502,
TCP(2-2)-12
Barricades, Signs and
Traffic Handling.
C TxDOT December 1985
REVISIONS
8-95
CONTROL WITH FLAGGERS
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
4-98
3-03
162
DIST
COUNTY
SHEET NO.
Channelizing Devices
Type 3 Barricade
48" X 24"
48" X 24"
Truck Mounted
X
CW20-1D
Heavy Work Vehicle
48" X 48"
(Flags-
See note 1)
See note 1)
X
X
R4-2
Raised Pavement
Flashing Arrow Board
Markers Ty II-AA
Sign
Traffic Flow
Flag
Flagger
24" X 30"
If applicable
Minimum
R4-1
24" X 30"
4" Double
R4-1
24" X 30"
24" X 30"
X
X
Yellow
1/2 L
R4-2
Posted
Formula
in Buffer
Island
*
B
1/2 L
X
CW1-6aT
100'
48" X 48"
36" X 36"
1/2 L
CW13-1P
24" X 24"
Approx.
CW1-4R
24" X 24"
48" X 48"
24" X 24"
Type II-A-A
Raised
Pavement
48" X 48"
Markers on
Work Space
CW13-1P
Edgeline
30'
White
Min.
100'
Approx.
B
4" Solid
Shadow Vehicle with
Suggested
Sign
Spacing
Buffer Space
"X"
12'
On a
On a
Offset Offset Offset
Taper
Tangent
11'
Longitudinal
"B"
Distance
150'
165'
180'
30'
60'
120'
90'
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'
60
* Conventional Roads Only
** Taper lengths have been rounded off.
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
TYPICAL USAGE
MOBILE
SHORT
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
TCP(2-3b)ONLY
1"-2"
40' C-C.
TMA and high intensity
+4"
4" Double
Yellow Line
Devices spaced at 500' to
1/4 to 1/2 mile in rural
rotating, flashing,
areas betweem recurrent
30'
lights. (See notes 7 & 8)
B
CW1-6aT
36" X 36"
work spaces
3. When work space will be in place less than three days existing pavement
markings may remain in place. Channelizing devices shall be used to separate
traffic.
4. Flagger control should NOT be used unless roadway conditions or heavy traffic
volume require additional emphasis to safely control traffic.
Flagger should
be positioned at end of traffic queue.
5. The R4-1 "DO NOT PASS," R4-2 " PASS WITH CARE" and construction
regulatory speed zone signs may be installed within CW20-1D "ROAD WORK
AHEAD" signs. Proper spacing of signs shall be maintained.
7. A Shadow Vehicle with a TMA should be used anytime it can be positioned
B
CW1-4L
48" X 48"
CW1-4L
30 to 100 feet in advance of the area of crew exposure without adversely
48" X 48"
affecting the performance or quality of the work. If workers are no longer
X
present but road or work conditions require the traffic control to remain
CW1-4L
CW13-1P
48" X 48"
24" X 24"
1/2 L
in place, Type 3 Barricades or other channelizing devices may be substituted.
CW1-6aT
(See note 2)
CW13-1P
24" X 24"
8. Additional Shadow Vehicles with TMAs may be positioned off the paved surface,
next to those shown in order to protect a wider work space.
TCP (2-3a)
9. Conflicting pavement markings shall be removed for long-term projects.
For shorter durations where traffic is directed over a yellow centerline,
channelizing devices which separate two-way traffic should be spaced on
X
24" X 24"
X
CW13-1P
1/3 L
X
36" X 36"
or for routine maintenance work, when approved by the Engineer.
6. Conflicting pavement marking shall be removed for long term projects.
X
1/3 L
1/2 L
(See note 2)
Work Space
1000' in urban areas, or
TMA and high intensity
Min.
Shadow Vehicle with
48" X 48"
X
2. All traffic control devices illustrated are REQUIRED, except those denoted
with the triangle symbol may be omitted when stated elsewhere in the plans,
oscillating or strobe
1/2 L
1. Flags attached to signs where shown, are REQUIRED.
Transverse Channelizing
CW1-4L
CW13-1P
100'
24" X 24"
Work Space
lights. (See notes 7 & 8)
30'
CW13-1P
Min.
oscillating or strobe
50'-
GENERAL NOTES
rotating, flashing,
24" X 24"
**
Devices
Minimum
CW1-4R
36" X 36"
CW1-4R
Channelizing
205'
2
WS
L=
L=WS
CW13-1P
CW1-6aT
Spacing of
Taper Lengths
10'
35
CW1-4R
Suggested Maximum
Desirable
Speed
30
48" X 48"
Attenuator (TMA)
Trailer Mounted
If applicable
X
48" X 48"
(Flags-
X
CW20-1D
1/2 L
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
DISCLAIMER:
LEGEND
G20-2
G20-2
CW1-6aT
R4-1
tapers at
24" X 30"
sections, at 1/2(S) where S is the speed in mph.
20' or 15' if posted speeds are 35 mph or slower, and for tangent
This tighter device spacing
is intended for the area of the conflicting markings, not the entire work zone.
R4-2
24" X 30"
X
Texas Department of Transportation
Traffic Operations Division
For construction
X
24" X 30"
Paved Shoulder
If applicable
(See note 2)
R4-1
Paved Shoulder
24" X 30"
Paved Shoul
der
R4-2
Paved Shoul
der
36" X 36"
contract work,
specific project
G20-2
(Flags-
requirements for
48" X 24"
See note 1)
shadow vehicles
If applicable
TRAFFIC CONTROL PLAN
or maintenance
CW20-1D
48" X 48"
TRAFFIC SHIFTS ON
TWO-LANE ROADS
can be found in
CW20-1D
48" X 48"
TCP (2-3a)
2-LANE ROADWAY WITH PAVED SHOULDERS
(Flags-
G20-2
the project
48" X 24"
TCP (2-3b)
See note 1)
2-LANE ROADWAY WITH PAVED SHOULDERS
GENERAL NOTES
Barricades, Signs
and Traffic
Handling.
DATE:
FILE:
ONE LANE CLOSED
ADEQUATE FIELD OF VIEW
ONE LANE CLOSED
TCP(2-3)-12
for Item 502,
C TxDOT December 1985
REVISIONS
8-95
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
INADEQUATE FIELD OF VIEW
4-98
3-03
163
DIST
COUNTY
SHEET NO.
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
Channelizing Devices
Type 3 Barricade
Truck Mounted
Heavy Work Vehicle
Attenuator (TMA)
Trailer Mounted
Portable Changeable
M
Flashing Arrow Board
Message Sign (PCMS)
X
CW20-1D
48" X 48"
Traffic Flow
Sign
(Flags-
48" X 24"
Shoulder
(Flags-
Shoulder
X
48" X 48"
G20-2
CW20-5TL
G20-2
48" X 24"
Posted
Formula
X
3X for over 50 MPH
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'
35
2
WS
L=
60
30" X 12"
L
(See note 4)
L=WS
X
B
rotating, flashing,
oscillating or
strobe lights.
200'
Approx.
(See note 8)
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
TYPICAL USAGE
CW1-4R
X
high intensity
Work Space
30'
with TMA and
MIN.
36" X 36"
Shadow Vehicle
* Conventional Roads Only
** Taper lengths have been rounded off.
CW1-6aT
1/2 L
100'
Approx.
X for 50 MPH or less
Spacing of
Channelizing
**
*
30
CW16-3aP
Suggested Maximum
Desirable
Taper Lengths
Speed
48" X 48"
See note 1)
Flagger
Minimum
X
CW20-1D
Flag
Shoulder
Shoulder
See note 1)
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
48" X 48"
CW13-1P
(See notes 5 & 6)
MOBILE
SHORT
24" X 24"
GENERAL NOTES
1. Flags attached to signs where shown, are REQUIRED.
Work Space
30'
1/3 L
L
DISCLAIMER:
Min.
B
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.
3. The downstream taper is optional. When used, it should be 100 feet minimum
length
legend may be shown on the sign face rather than on a CW16-3aP supplemental
Shadow Vehicle with
plaque.
TMA and high intensity
5. A Shadow Vehicle with a TMA should be used anytime it can be positioned
rotating, flashing,
B
oscillating or strobe
X
per lane.
4. For short term applications, when post mounted signs are not used, the distance
1/2 L
lights.(See notes 5 & 6)
30 to 100 feet in advance of the area of crew exposure without adversely affecting
CW1-6aT
36" X 36"
the performance or quality of the work. If workers are no longer present but road
or work conditions require the traffic control to remain in place, Type 3
Barricades or other channelizing devices may be substituted for the Shadow
Vehicle and TMA.
6. Additional Shadow Vehicles with TMAs may be positioned in each closed
L
X
X
lane, on the shoulder or off the paved surface, next to those shown in order
to protect a wider work space.
TCP (2-4a)
CW20-5TR
7. If this TCP is used for a left lane closure, CW20-5TL "LEFT LANE CLOSED"signs
48" X 48"
CW1-4L
L
48" X 48"
30" X 12"
closed lane near the end of the merging taper.
CW13-1P
1/3 L
(See note 4)
24" X 24"
TCP (2-4b)
8. For shorter durations where traffic is directed over a yellow centerline,
channelizing devices which separate two-way traffic should be spaced on tapers
X
X
CW16-3aP
shall be used and channelizing devices shall be placed on the centerline to
protect the work space from opposing traffic with the arrow board placed in the
at 20' or 15' if posted speeds are 35 mph or slower, and for tangent sections, at
1/2(S) where S is the speed in mph.
X
X
CW20-5TR
48" X 24"
48" X 48"
Texas Department of Transportation
48" X 48"
Traffic Operations Division
CW16-3aP
X
CW20-1D
Shoulder
G20-2
Shoulder
Shoulder
48" X 24"
Shoulder
G20-2
This tighter devices spacing is intended for
the area of conflicting markings, not the entire work zone.
30" X 12"
For construction
(See
or maintenance
note 4)
(Flags-
TRAFFIC CONTROL PLAN
contract work,
specific project
See note 1)
requirements for
LANE CLOSURES ON MULTILANE
shadow vehicles
CONVENTIONAL ROADS
can be found in
the project
TCP (2-4a)
GENERAL NOTES
TCP (2-4b)
TCP(2-4)-12
for Item 502,
Barricades, Signs
FILE:
DATE:
ONE LANE CLOSED
TWO LANES CLOSED
CW20-1D
and Traffic
48" X 48"
Handling.
C TxDOT December 1985
(FlagsSee note 1)
REVISIONS
8-95
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
4-98
3-03
164
DIST
COUNTY
SHEET NO.
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
Channelizing Devices
CW20-1D
48" X 48"
Truck Mounted
Shoulder
Shoulder
Type 3 Barricade
Heavy Work Vehicle
Trailer Mounted
48" X 48"
Flashing Arrow Board
Portable Changeable
M
Message Sign (PCMS)
(Flags-
(Flags-
See note 1)
G20-2
See note 1)
G20-2
48" X 24"
Shoulder
Shoulder
X
48" X 24"
3X for over 50 MPH
Traffic Flow
Flag
Flagger
Formula
X
*
Spacing of
Channelizing
**
Devices
30" X 12"
X
Suggested
Longitudinal
Spacing
Buffer Space
"X"
12'
On a
On a
Taper
Tangent
11'
"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'
35
X
Minimum
Sign
Offset Offset Offset
10'
30
CW16-3aP
Suggested Maximum
Desirable
Taper Lengths
Speed
48" X 48"
2
WS
L=
60
L=WS
L
100'
Sign
Minimum
Posted
CW20-5TL
Approx.
X for 50 MPH or less
Attenuator (TMA)
CW20-1D
*
** Taper lengths have been rounded off.
B
or strobe lights.
X
(See notes 3 & 4)
20' spacing
oscillating
36" X 36"
devices at
flashing,
200'Approx.
intensity rotating,
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
CW1-6aT
1/2 L
TMA and high
Work Space
30'
Shadow Vehicle with
MIN.
Conventional Roads Only
TYPICAL USAGE
MOBILE
SHORT
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
B
GENERAL NOTES
L
Markings
Work Space
30'
DISCLAIMER:
48" X 48"
Pavement
Min.
1. Flags attached to signs where shown, are REQUIRED.
CW1-4R
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.
3. A Shadow Vehicle with a TMA should be used anytime it can be
positioned 30 to 100 feet in advance of the area of crew eposure
without adversely affecting the performance or quality of the work.
CW13-1P
If workers are no longer present but road or work conditions
require the traffic control to remain in place, Type 3 Barricades or other
channelizing devices may be substitutued for the Shadow Vehicle and TMA.
B
1/3 L
24" X 24"
4. Additional Shadow Vehicles with TMAs may be positioned in each
1/2 L Min.
Shadow Vehicle with
X
TMA and high intensity
rotating, flashing,
oscillating or strobe
lights.(See notes 3 & 4)
CW1-6aT
36" X 36"
closed lane, on the shoulder or off the paved surface, next to those
shown in order to protect a wider work space.
5. The downstream taper is optional. When used, it should be 100 feet
approximately per lane, with channelizing devices spaced at 20 feet.
L
X
X
TCP (2-5a)
6. If this TCP is used for a left lane closure, CW20-5TL "LEFT LANE CLOSED"
signs shall be used and channelizing devices shall be placed on the
Pavement
CW1-4L
Markings
48" X 48"
taper.
L
CW20-5TR
48" X 48"
24" X 24"
X
Texas Department of Transportation
48" X 48"
For construction
30" X 12"
(Flags-
48" X 24"
X
CW20-1D
G20-2
Traffic Operations Division
CW20-5TR
CW16-3aP
48" X 48"
TCP (2-5b)
7. Conflicting pavement markings shall be removed for long-term projects.
X
Shoulder
Shoulder
Shoulder
G20-2
Shoulder
30" X 12"
X
1/3 L
X
CW13-1P
CW16-3aP
48" X 24"
centerline to protect the work space from opposing traffic, with the
arrow board placed in the closed lane near the end of the merging
contract work,
specific project
requirements for
shadow vehicles
See note 1)
TRAFFIC CONTROL PLAN
or maintenance
can be found in
LONG TERM LANE CLOSURES
MULTILANE CONVENTIONAL RDS.
the project
GENERAL NOTES
TCP (2-5a)
Barricades, Signs
CW20-1D
FILE:
DATE:
ONE LANE CLOSED
48" X 48"
TWO LANES CLOSED
TCP(2-5)-12
for Item 502,
TCP (2-5b)
(FlagsSee note 1)
and Traffic
Handling.
C TxDOT December 1985
REVISIONS
8-95
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
4-98
3-03
165
DIST
COUNTY
SHEET NO.
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
Channelizing Devices
Type 3 Barricade
Truck Mounted
G20-2
Heavy Work Vehicle
48" X 24"
Trailer Mounted
500' min.
100'
500' Min.
Spacing of
Channelizing
**
Devices
Work Space
30'
Minimum
Suggested
Sign
Longitudinal
Spacing
Buffer Space
"X"
12'
On a
On a
Offset Offset Offset
Taper
Tangent
11'
10'
"B"
Distance
150'
165'
180'
30'
60'
120'
90'
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'
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
* Conventional Roads Only
** Taper lengths have been rounded off.
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
6 & 7)
B
FRONTAGE RD.
MOBILE
L
Min.
30'
TYPICAL USAGE
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
1. Flags attached to signs where shown, are REQUIRED.
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.
3. Channelizing devices used to close lanes may be supplemented
with the Chevron Alignment Sign placed on every other channelizing
device.
B
(See note 5)
SHORT
GENERAL NOTES
1/3 L
Marking
B
Suggested Maximum
Desirable
Taper Lengths
205'
35
Pavement
Median
Formula
30
6 & 7)
DISCLAIMER:
Flagger
*
(See notes
(See notes 6 & 7)
(See notes
Min.
Median
Work Space
Median
100'
Work Space
30' Min.
Approx.
(See note 5)
(See note 5)
Flag
55
Marking
Marking
Traffic Flow
Speed
Pavement
Message Sign (PCMS)
Sign
Minimum
Posted
Approx.
100'
Approx.
Shoulder
Shoulder
48" X 24"
Pavement
Portable Changeable
M
Flashing Arrow Board
Shoulder
Shoulder
500' Min.
Shoulder
Shoulder
48" X 24"
G20-2
Attenuator (TMA)
G20-2
Chevrons may be attached to plastic drums as per BC Standards.
4. Channelizing devices used along the work space or along tangent sections
L
channelizing device. If night time conditions make it difficult to see at
least two VPs, the VPs may be placed on each channelizing device.
5. The placement of pavement markings may be omitted on Intermediate-term
stationary work zones with the approval of the Engineer.
L
6. Shadow Vehicle with TMA and high intensity rotating, flashing,oscillating
1/3 L
Shoulder
may be supplemented with vertical panels (VP) placed on everyother
E5-1
or strobe lights. Shadow Vehicle with TMA and high intensity rotating,
48" X 42"
flashing, oscillating or strobe lights.
of the area of crew exposure without adversely affecting the performance
48" X 48"
Min.
R11-2bT
100'
1000'
A Shadow Vehicle with a TMA
should be used anytime it can be positioned 30 to 100 feet in advance
CW20-5TR
or quality of the work. If workers are no longer present but road or work
48" X 30"
CW25-1T
48" X 48"
conditions require the traffic control to remain in place, Type 3
Barricades or other channelizing devices may be substituted for the
CW16-3aP
Shadow Vehicle and TMA.
30" X 12"
7. Additional Shadow Vehicles with TMAs may be positioned in each
1000'
1600'
CW20-5TR
closed lane, on the shoulder or off the paved surface, next to those
10'Min.
shown in order to protect a wider work space.
CW13-2
Channelizing
48" X 60"
Devices at
20' spacing
L
2600'
For construction or maintenance contract work, specific project
requirements for shadow vehicles can be found in the project GENERAL
48" X 48"
E5-1
See TCP(2-5a)
48" X 42"
for lane closure
CW16-3aP
details if a lane
Marking
30" X 12"
closure is needed
(See notes 5)
to close a lane
1/3 L
500'
Pavement
NOTES for Item 502, Barricades, Signs and Traffic Handling.
Texas Department of Transportation
Traffic Operations Division
which is normally
required to enter
the ramp.
TRAFFIC CONTROL PLAN
LANE CLOSURES ON
See TCP(2-6a)
for advance
warning signs
CW20-1F
for lane closure
48" X 48"
See TCP(2-6a)
DIVIDED HIGHWAYS
for advance
warning signs
for lane closure
TCP(2-6)-12
(FlagsSee note 1)
TCP (2-6a)
CW20RP-3D
TCP (2-6b)
TCP (2-6c)
48" X 48"
C TxDOT December 1985
FILE:
DATE:
REVISIONS
ONE LANE CLOSURE
LANE CLOSURE NEAR EXIT RAMPS
LANE CLOSURE NEAR ENTRANCE RAMPS
2-94
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
8-95
1-97
4-98
166
DIST
COUNTY
SHEET NO.
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
Traffic Control Devices
Traffic Control Devices
G20-2
shown for one direction
G20-2
shown for one direction
48" X 24"
Channelizing Devices
Type 3 Barricade
48" X 24"
Truck Mounted
Heavy Work Vehicle
If applicable
Attenuator (TMA)
Trailer Mounted
Raised Pavement
Flashing Arrow Board
Markers Ty II-AA
CW1-6
New pavement
48" X 24"
surface should
(See note 2)
Sign
Traffic Flow
Flag
Flagger
R4-2
extend to
24" X 30"
this point.
(See note 2)
Warning Reflectors may be added on
Minimum
top of channelizing devices for
additional conspicuity
Posted
Formula
*
be added if drums or longitudinal
(Both directions)
48" X 24"
**
Devices
30
CTB with safety end
and equipment to
treatment, or other
enter and exit work
barrier system as
space.
detailed elsewhere
in the plans.
On a
On a
Tangent
White
11'
"B"
Distance
150'
165'
180'
30'
60'
120'
90'
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'
WS
L=
60
L=WS
4" Solid
Buffer Space
205'
35
offset to permit workers
Suggested
Longitudinal
Spacing
"X"
12'
Taper
2
(See note 2)
Barricades may be
Minimum
Sign
Offset Offset Offset
10'
channelizing devices are used.
CW1-6
Spacing of
Channelizing
Speed
steady-burn warning lights may
Suggested Maximum
Desirable
Taper Lengths
at night.
Warning Reflectors, chevrons or
Edgeline
CW1-4R
*
** Taper lengths have been rounded off.
Conventional Roads Only
48" X 48"
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
CW13-1P
24" X 24"
TYPICAL USAGE
MOBILE
OM-3
SHORT
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
Object
Markers
R11-2
48" X 30"
4" Double
Yellow Line
4" Solid
10'
White
Edgeline
1"-2"
CW1-6
48" X 24"
GENERAL NOTES
1. Flags attached to signs where shown are REQUIRED.
DISCLAIMER:
2. All traffic control devices illustrated are REQUIRED, except those
Type II-A-A
+4"
Raised
Pavement
Type II-A-A
Markers on
Raised
40' C-C.
Pavement
Markers on
in the plans, or for routine maintenance work, when approved by the
Engineer.
TCP (2-7a)
3. Raised pavement markers shall be placed 40 feet c-c on centerline
1"-2"
40' C-C.
denoted with the triangle symbol may be omitted when stated elsewhere
throughout project.
4. Roadway diversion design requirements should be based on posted
4" Double
speed limit or prevailing speed.
+4"
5. New pavement surface should be extended across existing roadway
Yellow Line
edge to a point where existing pavement markings left in place
during project do not conflict with construction area pavement
X
marking.
TCP (2-7b)
New pavement
CW5-2
X
surface should
extend to
48" X 48"
CW1-4L
this point.
(See note 6)
6. The CW5-2 "Narrow Bridge" sign may be omitted if lane and shoulder
widths are maintained.
X
(See note 5)
CW13-1P
X
48" X 48"
For construction or maintenance contract work, specific
24" X 24"
project requirements for shadow vehicles can be found
(See note 2)
in the project GENERAL NOTES for Item 502,
Barricades, Signs and Traffic Handling.
R4-1
X
X
24" X 30"
Texas Department of Transportation
CW20-1A,B or C
Traffic Operations Division
48" X 48"
TRAFFIC CONTROL PLAN
DIVERSIONS AND
NARROW BRIDGES
CW20-1D
48" X 48"
TCP (2-7a)
(Flags-
CW20-1D
48" X 48"
TCP (2-7b)
TCP(2-7)-12
See note 1)
(FlagsSee note 1)
C TxDOT December 1985
FILE:
DATE:
REVISIONS
ROADWAY DIVERSION
BRIDGE WIDENING
8-95
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
4-98
3-03
167
DIST
COUNTY
SHEET NO.
The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of any
kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion of this standard to other formats or for incorrect results or damages resulting from its use.
LEGEND
Warning Sign Sequence
Warning Sign Sequence
in opposite direction
G20-2
in opposite direction
48" X 24"
same as below
Channelizing Devices
Sign
Traffic Flow
Flag
Flagger
Raised Pavement
Temporary or Portable
Markers Ty II-AA
Traffic Signal
X
same as below
Type 3 Barricade
X
G20-2
48" X 24"
Temporary
24" Stop Line
R1-2
If applicable
42" X 42 " X 42"
Minimum
R4-2
24" X 30"
24" X 30"
R10-6L
R1-2aP
24" X 36"
48" X 36"
(See note 7)
Temporary
Formula
*
be located across
**
Devices
DO NOT PASS sign
30
50'-100'
On a
Offset Offset Offset
Taper
Tangent
100' Max.
48" X 48"
MINIMUM LANE WIDTH
11' - Rural
Stopping
Longitudinal
Buffer Space
Sight
Distance
"B"
Distance
150'
165'
180'
60'
120'
90'
200'
205'
225'
245'
35'
70'
160'
120'
250'
40
265'
295'
320'
40'
80'
240'
155'
305'
45
450'
495'
540'
45'
90'
320'
195'
360'
50
500'
550'
600'
50'
100'
400'
240'
425'
35
2
WS
L=
60
550'
605'
660'
55'
110'
500'
295'
495'
60
600'
660'
720'
60'
120'
600'
350'
570'
65
650'
715'
780'
65'
130'
700'
410'
645'
70
700'
770'
840'
70'
140'
800'
475'
730'
75
750'
825'
900'
75'
150'
900'
540'
820'
L=WS
CW1-4R
12'
11'
Suggested
Sign
Spacing
30'
in the opposing
direction)
Minimum
"X"
On a
55
100' Max.
Spacing of
Channelizing
10'
from the R4-1
Suggested Maximum
Desirable
Taper Lengths
(This sign should
Yield Line
100'
Posted
Speed
150'
40' to
R4-2
* Conventional Roads Only
** Taper lengths have been rounded off.
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
10' - Urban (Urban Street
CW13-1P
Speed Conditions 30-40 mph)
24" X 24"
MINIMUM LANE WIDTH
CW1-4R
11' - Rural
TYPICAL USAGE
48" X 48"
10' - Urban (Urban Street
MOBILE
Speed Conditions 30-40 mph)
4" Solid
White
SHORT TERM
INTERMEDIATE
LONG TERM
DURATION
STATIONARY
TERM STATIONARY
STATIONARY
CW13-1P
R1-2
Edgeline
SHORT
24" X 24"
42"X 42"X 42"
R1-2aP
1. Flags attached to signs where shown are REQUIRED.
48" X 36"
2. When this TCP is used at a location which does not involve a bridge,
(See note 7)
a 48" x 48" CW20-4D "ONE LANE ROAD AHEAD" signs should be used in lieu
Type B High
Intensity
Flashing Warning
Light or Flashing
Beacon.
Temporary
(See note 6)
Yield Line
50'-100'
of the CW5-3 "ONE LANE BRIDGE" signs. The CW13-1P Advisory Speed Plaque
100'-150'
DISCLAIMER:
100'-150'
50' - 100'
GENERAL NOTES
is required with either warning sign.
R10-6L
3. Raised pavement markers shall be placed 40 feet c-c on centerline between
24" X 36"
DO NOT PASS signs and stop
pavement markings, the channelization must be made dominant by using a very
close spacing. This is especially important in locations of conflicting
information, such as where traffic is directed over a double yellow centerline.
4" Solid
White
In such locations a maximum channelizing device spacing of 20 feet is
Edgeline
recommended.
4" Solid
150'
CW3-2
48" X 48"
40' to
X
or yield lines.
4. For intermediate term situations, when it is not feasible to remove and restore
TCP (2-8a)
CW3-3
5. Traffic control by CW3-2 "YIELD AHEAD" symbol signs for one lane two-way
48" X 48"
White
Edgeline
(Red Ball on Top)
24" Stop Line
traffic control operations should be limited to work spaces less than
400 feet long and roadways with less than 2000 ADT.
X
X
Temporary
The 20 foot channelizing device spacing recommendation is
intended for the area of conflicting information and not the entire work zone.
Otherwise, portable
traffic signals should be used.
OR
6. If power is available, a flashing beacon should be attached to the CW3-2
CW5-3
"YIELD AHEAD" symbol sign for emphasis.
48" X 48"
X
7. The R1-2 "YIELD" and R1-2aP "TO ONCOMING TRAFFIC" signs and other
OR
regulatory signs shall be installed at 7 foot minimum mounting height.
X
CW20-4D
8. A list of approved Portable Traffic Signals can be found in the "Compliant
Type II-A-A
Raised
Raised
Pavement
Pavement
X
1"-2"
40' C-C.
48" X 48"
24" X 30"
(See note 2)
Work Zone Traffic Control Devices" list.
9. Portable traffic signals should be located to provide adequate stopping sight
distance for approaching motorist (See table above).
24" X 24"
1"-2"
40' C-C.
Texas Department of Transportation
X
R4-1
+4"
4" Double
CW20-4D
CW13-1P
Markers on
Markers on
TCP (2-8b)
48" X 48"
(See note 2)
24" X 24"
X
CW13-1P
Type II-A-A
CW5-3
48" X 48"
4" Double
+4"
Traffic Operations Division
Yellow Line
Yellow Line
R4-1
For construction
24" X 30"
or maintenance
TRAFFIC CONTROL PLAN
contract work,
specific project
LONG TERM ONE-LANE
requirements for
shadow vehicles
TCP (2-8a)
CW20-1D
can be found in
48" X 48"
the project
GENERAL NOTES
(FlagsSee note 1)
TCP (2-8b)
CW20-1D
48" X 48"
FILE:
DATE:
ONE LANE TWO-WAY
TRAFFIC CONTROL WITH YIELD SIGNS
(Less Than 2000 ADT-See Note 5)
TWO-WAY CONTROL
(Flags-
ONE LANE TWO-WAY
TCP(2-8)-12
for Item 502,
Barricades, Signs
and Traffic
Handling.
C TxDOT December 1985
See note 1)
REVISIONS
8-95
DN: TXDOT
CONT
SECT
CK: TXDOT
JOB
DW: TXDOT
CK: TXDOT
HIGHWAY
2-12
1-97
TRAFFIC CONTROL WITH TRAFFIC SIGNAL
4-98
3-03
168
DIST
COUNTY
SHEET NO.