A1.2_BPFAL-TCP-RTA-4-20-15.pdf

DN: CK: DW: CK:FILE:

JOB

COUNTY

SECT

DIST

REVISIONS

TxDOT TxDOT TxDOT TxDOT

HIGHWAY

SHEET NO.

C TxDOT o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d i s m a d e b y

T x

D O

T f o r a n y p u r p o e w h a t s o e v e r

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i o n e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x

E g i n e e r i g

P a c t i c

A t

N r r a n t y o f a n y

D I

S C

L A I

M E

R

CONTNovember 2002

F I

L E

D A

T E

SHEET 1 OF 12

AND REQUIREMENTS

GENERAL NOTES

BARRICADE AND CONSTRUCTION

4-03

9-07

5-10

7-13

Standard Division

Operations Traffic

BC(1)-14

8-14 bc-14.dgn http://www.txdot.gov

THE DOCUMENTS BELOW CAN BE FOUND ON-LINE AT

COMPLIANT WORK ZONE TRAFFIC CONTROL DEVICES LIST (CWZTCD)

TEXAS MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (TMUTCD)

STANDARD HIGHWAY SIGN DESIGNS FOR TEXAS (SHSD)

TRAFFIC ENGINEERING STANDARD SHEETS

MATERIAL PRODUCER LIST (MPL)

ROADWAY DESIGN MANUAL - SEE "MANUALS (ONLINE MANUALS)"

DEPARTMENTAL MATERIAL SPECIFICATIONS (DMS)

Phone (512) 416-3118

Traffic Operations Division - TE

Texas Department of Transportation below or by contacting:

and their sources and may be found on-line at the web address given

Traffic Control Devices List" (CWZTCD) describes pre-qualified products

Only pre-qualified products shall be used. The "Compliant Work Zone

BARRICADE AND CONSTRUCTION (BC) STANDARD SHEETS GENERAL NOTES:

or as approved by the Engineer.

right-of-way line as possible, or located behind a barrier or guardrail, must be parked away from travel lanes. They should be as close to the

13. Inactive equipment and work vehicles, including workers’ private vehicles devices.

12. The Engineer has the final decision on the location of all traffic control exists.

be in place only while work is actually in progress or a definite need

11. Except for devices required by Note 10, traffic control devices should shall be erected at or near the CSJ limits.

strips. The BEGIN ROAD WORK NEXT X MILES, CONTRACTOR and END ROAD WORK signs solely of mobile operation work, such as striping or milling edgeline rumble the TRAFFIC FINES DOUBLE sign will not be required on projects consisting sign with plaque shall be erected in advance of the CSJ limits. However, TEXT LATER (see Sign Detail G20-10T) and the WORK ZONE TRAFFIC FINES DOUBLE

10. As shown on BC(2), the OBEY WARNING SIGNS STATE LAW sign, STAY ALERT TALK OR appropriate traffic control devices to be used.

BC sheets are examples. As necessary, the Engineer will determine the most

9. The temporary traffic control devices shown in the illustrations of the provide a detail to the Contractor before the sign is manufactured.

not shown in this manual shall be shown in the plans or the Engineer shall

"Standard Highway Sign Designs for Texas," latest edition. Sign details

8. All signs shall be constructed in accordance with the details found in the justify the signing.

divided highways where median width will permit and traffic volumes

7. The Engineer may require duplicate warning signs on the median side of revised to show appropriate work zone distance.

directed by the Engineer. The BEGIN ROAD WORK NEXT X MILES sign shall be necessary warning signs as shown on these sheets, the TCP sheets or as adjacent project is completed first, the Contractor shall erect the redundant and the work areas appear continuous to the motorists. If the

FINES DOUBLE, and other advance warning signs if the signing would be

6. When projects abut, the Engineer(s) may omit the END ROAD WORK, TRAFFIC

Design Manual" or engineering judgment.

"A Policy on Geometric Design of Highways and Streets," the TxDOT "Roadway

Association of State Highway and Transportation Officials (AASHTO), applicable design criteria contained in manuals such as the American

5. Geometric design of lane shifts and detours should, when possible, meet the the approximate location of any device without the approval of the Engineer.

control devices as shown in the plans. The Contractor may not move or change

4. The Contractor is responsible for installing and maintaining the traffic sign and seal Contractor proposed changes.

by a licensed professional engineer for approval. The Engineer may develop,

3. The Contractor may propose changes to the TCP that are signed and sealed responsibility of the Engineer.

2. The development and design of the Traffic Control Plan (TCP)is the shown in the "Texas Manual on Uniform Traffic Control Devices" (TMUTCD).

The information contained in these sheets meet or exceed the requirements devices, construction pavement markings, and typical work zone signs.

to show typical examples for placement of temporary traffic control

1. The Barricade and Construction Standard Sheets (BC sheets) are intended

WORKER SAFETY APPAREL NOTES:

considered for high traffic volume work areas or night time work.

performance for Class 2 or 3 risk exposure. Class 3 garments should be

Apparel," or equivalent revisions, and labeled as ANSI 107-2004 standard the requirements of ISEA "American National Standard for High-Visibility within the right-of-way shall wear high-visibility safety apparel meeting

1. Workers on foot who are exposed to traffic or to construction equipment

3.0" Radius, 1.25" Border, 0.75" Indent, Black on Yellow;

3.0" Radius, 1.25" Border, 0.75" Indent, Black on Orange;

.75"

2"

BACKGROUND

ORANGE

AND SYMBOL

BORDER

LEGEND,

BLACK

R=1.1"

.31" 1"

.67" .67"

1" .31"

9"

R=.44"

R=.79"

R=.13"

R=.75"

6.38"

1.68"1.68" 1.68"

8.38"

4.9" 19.7" 6" 24.5" 4.9"

D

1.25"

C

20" 20" 20"

3.5" 12" 2.8" 6.3"2.8" 11.7" 2.8" 14.6" 3.5"

60"

1.25"

SIGN DETAIL (G20-10T)

LEGEND

BORDER AND

BLACK

BACKGROUND

YELLOW

COLORS:

[STAY ALERT] Font: D

[TALK OR TEXT LATER] Font: C specified length;

WHITE

BLACK

WHITER=.26"

R=1.5"

COUNTY

SECT

DIST

REVISIONS

TxDOT TxDOT TxDOT

HIGHWAY

SHEET NO.

C TxDOT o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R

CONT

bc-14.dgn

November 2002

F I

L E

D A

T E

SHEET 2 OF 12

R11-2

ROAD

CLOSED

XX

ROAD

WORK

AHEAD

END

ROAD WORK

END

ROAD WORK

CW20-1D

CW1-6

ROAD

WORK

AHEAD

CW20-1D

NAME

ADDRESS

CITY

STATE

CONTRACTOR

ROAD WORK

NEXT X MILES

BEGIN

ROAD

WORK

AHEAD

ROAD

WORK

AHEAD

P R

O J

E C

T

1 Block - City

1 Block - City

ROAD WORK

NEXT X MILES

ROAD WORK

END

ROAD WORK

NEXT X MILES

P R

O J

E C

T

CROSSROAD

X

X

X

X

ROAD

WORK

AHEAD

END

ROAD WORK

END

ROAD WORK

CW20-1D

NAME

ADDRESS

CITY

STATE

CONTRACTOR

WORK

ZONE

TRAFFIC

FINES

DOUBLE

WHEN

WORKERS

ARE PRESENT

ROAD WORK

BEGIN

T-INTERSECTION

ROAD

WORK

AHEAD

CW20-1D

CW20-1D

CW20-1D

3X

3X

XX

ROAD WORK

NEXT X MILES

ROAD WORK

NEXT X MILES

NEXT X MILES

INTERSECTED

ROADWAY 1000’-1500’ - Hwy

1000’-1500’ - Hwy

CSJ Limit

CSJ Limit

XXXXX

XXXXX

1,5,6

X

X

TYPICAL LOCATION OF CROSSROAD SIGNS

X

X

WORK

ZONE

TRAFFIC

FINES

DOUBLE

WHEN

WORKERS

ARE PRESENT

WORK

ZONE

TRAFFIC

FINES

DOUBLE

WHEN

WORKERS

ARE PRESENT

R20-5T

G20-5T

G20-5T

CW1-4R

WORK AREAS IN MULTIPLE LOCATIONS WITHIN CSJ LIMITS

SAMPLE LAYOUT OF SIGNING FOR WORK BEGINNING AT THE CSJ LIMITS

SAMPLE LAYOUT OF SIGNING FOR WORK BEGINNING DOWNSTREAM OF THE CSJ LIMITS

CW1-4L

CW20-1E

WORK

ROAD

G20-5T

/ MILE

NEXT X MILES

TYPICAL CONSTRUCTION WARNING SIGN SIZE AND SPACING

MPH

Posted

Speed

Sign

Spacing

(Apprx.)

65 700

70 800

"X"

Feet

75 900 2

80 1000 2

SPACING

SIZE

9-07

Devices Channelizing

Devices Channelizing min.

80’

AREA

WORK

Limit

CSJ

1 and 4) see Note

(Optional

1 and 4) see Note

(Optional

G20-2

G20-1aT

G20-1aT

NEXT X MILES

G20-2

CW13-1P

SPACE

WORK

CW13-1P

MPH

MPH

G20-2

SPACE

WORK

Channelizing Devices

LEGEND

Sign

Type 3 Barricade spacing requirements.

TMUTCD for sign

Spacing chart or the

Warning Sign Size and

See Typical Construction

G20-1bTR G20-1bTL

R20-5T

R20-5aTP G20-6T

G20-2

R20-5aTP

R20-5T

G20-5aP G20-5aP

G20-2

G20-6T channelizing devices

Type 3 Barricade or devices channelizing

Barricade or

Type 3

G20-6T

GENERAL NOTES

or Series

Number

Sign

Freeway

Expressway/

Road

Conventional

CW20

CW21

CW22 48" x 48" 48" x 48"

CW23

CW25

CW1, CW2,

CW7, CW8, 36" x 36" 48" x 48"

CW9, CW11,

CW14

CW3, CW4,

CW5, CW6, 48" x 48" 48" x 48"

CW8-3,

CW10, CW12

CSJ LIMITS AT T-INTERSECTION

R20-3T

TxDOT

G20-5aP

R20-5aTP

Operations Traffic

X channelizing devices.

within the project limits. See the applicable TCP sheets for exact location and spacing of signs and

"ROAD WORK AHEAD"(CW20-1D)signs are placed in advance of these work areas to remind drivers they are still

When extended distances occur between minimal work spaces, the Engineer/Inspector should ensure additional

(G20-1bTR)" signs shall be replaced by the detour signing called for in the plans.

The "ROAD WORK NEXT X MILES" left arrow(G20-1bTL) and "ROAD WORK NEXT X MILES" right arrow

NAME"(G20-6T) sign behind the Type 3 Barricades for the road closure (see BC(10) also).

2. If construction closes the road at a T-intersection the Contractor shall place the "CONTRACTOR being performed at or near an intersection.

such as a flagger and accompanying signs, or other signs, that should be used when work is

1. The Engineer will determine the types and location of any additional traffic control devices, PROJECT LIMIT

BARRICADE AND CONSTRUCTION

WARNING

SIGNS

STATE LAW

OBEY

**R20-3T*

WARNING

SIGNS

STATE LAW

OBEY

WORK

ZONE

TRAFFIC

FINES

DOUBLE

WHEN

WORKERS

ARE PRESENT

BEGIN**G20-9TP

**R20-5T

**R20-5aTP the plans or as determined by the Engineer/Inspector, shall be in place.

6. When work occurs in the intersection area, appropriate traffic control devices, as shown elsewhere in

5. Additional traffic control devices may be shown elsewhere in the plans for higher volume crossroads.

will determine whether a roadway is considered high volume.

motorists of the length of construction in either direction from the intersection. The Engineer

4. The "ROAD WORK NEXT X MILES"(G20-1aT)sign shall be required at high volume crossroads to advise

Zone Standard Sheets.

location and spacing of any sign not shown on the BC sheets, Traffic Control Plan sheets or the Work be considered part of the minimum requirements. The Engineer/Inspector will determine the proper

AHEAD, LOOSE GRAVEL, or other appropriate signs. When additional signs are required, these signs will

3. Based on existing field conditions, the Engineer/Inspector may require additional signs such as FLAGGER in the plans.

crossroads. The Engineer will determine whether a road is low volume. This information shall be shown

Texas" manual for sign details. The Engineer may omit the advance warning signs on low volume

"Typical Construction Warning Sign Size and Spacing"). See the "Standard Highway Sign Designs for with the reduced size 36" x 18" "END ROAD WORK"(G20-2) sign on low volume crossroads (see Note 4 under

2. The Engineer may use the reduced size 36" x 36" ROAD WORK AHEAD (CW20-1D) sign mounted back to back

(G20-2) "END ROAD WORK" sign, unless noted otherwise in plans.

1. The typical minimum signing on a crossroad approach should be a "ROAD WORK AHEAD" (CW20-1D)sign and a

SPEED

LIMIT

XX

X location with sign coordinate line should

NO-PASSING

Beginning of SPEED

LIMIT

XX*

R2-1

R2-1

BC(2)-14

8-14

R2-1

SPEED

LIMIT

XX

X

G20-10T

XX

CW1-4L

MPHCW13-1P

NAME

ADDRESS

CITY

STATE

CONTRACTOR

ROAD WORK

NEXT X MILES

BEGIN

NOTES

* the end of the work zone.

Contractor will install a regulatory speed limit sign at

Control Plan.

and other signs or devices as called for on the Traffic

Area for placement of "ROAD WORK AHEAD" (CW20-1D)sign consisting solely of mobile operations work.

FINES DOUBLE signs will not be required on projects

Required CSJ Limit signing. See Note 10 on BC(1). TRAFFIC if workers are present.

lying outside the CSJ Limits where traffic fines may double motorist of entering or leaving a part of the work zone signs are required outside the CSJ Limits. They inform the shall be used as shown on the sample layout when advance

The "BEGIN WORK ZONE"(G20-9TP) and "END WORK ZONE" (G20-2bT)

No decimals shall be used.

to the nearest whole mile with the approval of the Engineer.

This distance shall replace the "X" and shall be rounded

WORK NEXT X MILES"(G20-5T)sign for each specific project.

to be placed on the G20-1 series signs and "BEGIN ROAD

The Contractor shall determine the appropriate distance

DO

NOT

PASS

appropriate) (as R4-1 sizes.

Sign Designs for Texas" manual for complete list of available sign design

6. See sign size listing in "TMUTCD", Sign Appendix or the "Standard Highway

5. Only diamond shaped warning sign sizes are indicated.

Location of Crossroad Signs".

crossroads at the discretion of the Engineer. See Note 2 under "Typical

4. 36" x 36" "ROAD WORK AHEAD" (CW20-1D)signs may be used on low volume or more advance warning.

3. Distance between signs should be increased as required to have 1/2 mile advance warning.

2. Distance between signs should be increased as required to have 1500 feet

1. Special or larger size signs may be used as necessary.

work area and/or distance between each additional sign.

Minimum distance from work area to first Advance Warning sign nearest the

(TMUTCD) typical application diagrams or TCP Standard Sheets.

see Part 6 of the "Texas Manual on Uniform Traffic Control Devices"

For typical sign spacings on divided highways, expressways and freeways, G20-10T

SPEED

LIMIT

R2-1

XX

X X

X

G20-2bT

END

WORK ZONE

(See note 2 below)

May be mounted on back of "ROAD WORK AHEAD"(CW20-1D) sign with approval of Engineer.

COUNTY

SECT

DIST

REVISIONS

TxDOT TxDOT TxDOT

HIGHWAY

SHEET NO.

C TxDOT o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R

CONT

bc-14.dgn

November 2002

F I

L E

D A

T E

SHEET 3 OF 12

TxDOT

9-07

Operations Traffic

WORK ZONE SPEED LIMIT

BARRICADE AND CONSTRUCTION

SPEED

LIMIT

SPEED

LIMIT

TYPICAL APPLICATION OF WORK ZONE SPEED LIMIT SIGNS

WORK

ZONE

SPEED

LIMIT

WORK

ZONE

WORK

ZONE

SPEED

LIMIT

(750’ - 1500’) (750’ - 1500’)

R2-1

R2-1

R2-1 R2-1

Reduced speeds should only be posted in the vicinity of work activity and not throughout the entire project.

LIMIT

SPEED

CW3-5

See General Note 4 and approved by the Texas Transportation Commission, or by City Ordinance when within Incorporated City Limits.

Work zone speed limits shall be regulatory, established in accordance with the "Procedures for Establishing Speed Zones," or covered during periods when they are not needed.

Regulatory work zone speed signs (R2-1) shall be removed signing.

additional advance

See BC(2) for one direction only.

Signing shown for

LIMITS

CSJ

Note 4

See General

LIMIT

SPEED

CW3-5

G20-5aP

G20-5aP

SPEED

LIMIT

GENERAL NOTES

GUIDANCE FOR USE:

mounting height.

3. Speed zone signs are illustrated for one direction of travel and are normally posted for each direction of travel.

40 mph and greater 0.2 to 2 miles

35 mph and less 0.2 to 1 mile

5. Regulatory speed limit signs shall have black legend and border on a white reflective

B. Flagger stationed next to sign.

A. Law enforcement.

C. Portable changeable message sign (PCMS).

This type of work zone speed limit should be included on the design of the traffic control plans when restricted geometrics with a lower design speed are present in the work zone and modification of the geometrics to a higher design speed is not feasible.

Work activity may also be defined as a change in the roadway that requires a reduced speed for motorists to safely negotiate the work area, including:

a) rough road or damaged pavement surface

b) substantial alteration of roadway geometrics (diversions)

c) construction detours

d) grade

e) width

As long as any of these conditions exist, the work zone speed limit signs

SHORT TERM WORK ZONE SPEED LIMITS

the traffic control plans when workers or equipment are not behind concrete

f) other conditions readily apparent to the driver projects where speed control is of major importance.

E. Speed monitor trailers or signs.

D. Low-power (drone) radar transmitter.

(See Removing or Covering on BC(4)).

Long/Intermediate Term Work Zone Speed Limit signs, when approved as described above, should be posted and visible to the motorist when work activity is present.

motorists only when work activity is present. When work activity is not present, signs shall be removed or covered.

Short Term Work Zone Speed Limit signs should be posted and visible to the background (See "Reflective Sheeting" on BC(4)).

4. Frequency of work zone speed limit signs should be:

8. Techniques that may help reduce traffic speeds include but are not limited to:

2. Regulatory work zone speed limit signs shall be placed on supports at a 7 foot minimum should remain in place.

1. Regulatory work zone speed limits should be used only for sections of construction

LONG/INTERMEDIATE TERM WORK ZONE SPEED LIMITS

zone reduction see TxDOT form #1204 in the TxDOT e-form system.

conditions and factors impacting allowable regulatory construction speed

10.For more specific guidance concerning the type of work, work zone

Work Zone Speed Limits should only be posted as approved for each project.

9. Speeds shown on details above are for illustration only.

This type of work zone speed limit may be included on the design of barrier, when work activity is within 10 feet of the traveled way or actually in the travelled way.

otherwise noted under "REMOVING OR COVERING" on BC(4).

7. Turning signs from view, laying signs over or down will not be allowed, unless as directly, but shall be considered subsidiary to Item 502.

"WORK ZONE"(G20-5aP) plaque and the "SPEED LIMIT"(R2-1)signs shall not be paid for

6. Fabrication, erection and maintenance of the"ADVANCE SPEED LIMIT"(CW3-5)sign, Note 4

See General

R2-1

WORK

ZONE

SPEED

LIMIT

R2-1 signing.

additional advance

See BC(2) for one direction only.

Signing shown for

G20-5aP G20-5aP

SPEED

LIMIT

70 R2-1

LIMITS

CSJ

BC(3)-14

COUNTY

SECT

DIST

REVISIONS

TxDOT TxDOT TxDOT TxDOT

HIGHWAY

SHEET NO.

C TxDOT o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R

CONT

bc-14.dgn

November 2002

F I

L E

D A

T E

SHEET 4 OF 12

Operations Traffic

TEMPORARY SIGN NOTES

BARRICADE AND CONSTRUCTION

C u r b

XX

T r a v e l l a n e e d

12’ min.

FRONT ELEVATION

SIDE ELEVATION

T r a v e l l a n e e d

OR

TYPICAL MINIMUM CLEARANCES FOR LONG TERM AND INTERMEDIATE TERM SIGNS

CONTRACTOR REQUIREMENTS FOR MAINTAINING PERMANENT SIGNS

WITHIN THE PROJECT LIMITS

0’-6’

1. Permanent signs are used to give notice of traffic laws or regulations, call attention to conditions that are potentially hazardous to traffic operations, show route designations, destinations, directions, distances, services, points of interest, and other geographical, recreational, or cultural information.

Drivers proceeding through a work zone need the same, if not better route guidance as normally installed on a roadway without construction.

2. When permanent regulatory or warning signs conflict with work zone conditions,

3. When existing permanent signs are moved and relocated due to construction purposes, they shall be visible to motorists at all times.

4. If existing signs are to be relocated on their original supports, they shall be installed on crashworthy bases as shown on the SMD Standard sheets. The signs shall meet the required mounting heights shown on the BC Sheets or the SMD

Standards. This work should be paid for under the appropriate pay item for relocating existing signs.

5. If permanent signs are to be removed and relocated using temporary supports, the Contractor shall use crashworthy supports as shown on the BC sheets or the

CWZTCD. The signs shall meet the required mounting heights shown on the

BC Sheets or the SMD Standards during construction. This work should be paid for under the appropriate pay item for relocating existing signs.

6. Any sign or traffic control device that is struck or damaged by the Contractor or his/her construction equipment shall be replaced as soon as possible by the

Contractor to ensure proper guidance for the motorists. This will be subsidiary to Item 502.

remove or cover the permanent signs until the permanent sign message matches the roadway condition.

ATTACHMENT FOR SIGN SUPPORTS

Wood

STOP/SLOW PADDLES

10" 10"

24"

24"

24"

24"

8"C 8"B

9" 8�"

R=2" 3"

6.0’ min.

Fiber Reinforced Plastic

Wood, metal or the ground.

SIZE OF SIGNS

SIGN SUBSTRATES

SIGN LETTERS

Hand Signaling Devices in the TMUTCD.

shall only be as specifically described in Section 6E.03

4. Any lights incorporated into the STOP or SLOW paddle faces length of 6’ to the bottom of the sign.

3. STOP/SLOW paddles may be attached to a staff with a minimum retroreflectorized.

2. When used at night, the STOP/SLOW paddle shall be as detailed below.

by flaggers. The STOP/SLOW paddle size should be 24" x 24"

1. STOP/SLOW paddles are the primary method to control traffic curb from minimum

2 ’ min.

6’

9.0’ max.

7.0’ min.

9.0’ max.

7.0’ min.

9.0’ max.

7.0’ min.

shoulder

Paved shoulder

Paved above sign protrude shall not

Support above sign protrude shall not

Support substrate.

back of the sign

1/2 way up the extend more than

Sign supports shall

Legend & Border - White

Background - Red

Legend & Border - Black

Background - Orange

Supplemental plaques (advisory or distance) should not cover the surface of the parent sign.

When plaques are placed on dual-leg supports, they should be attached to the upright nearest the travel lane.

Objects shall NOT be placed under skids as a means of leveling.

When placing skid supports on unlevel ground, the leg post lengths must be adjusted so the sign appears straight and plumb.

MPH

be allowed.

other means.

by splicing or extended or repaired supports shall not be any means. Wood joined or spliced by signs shall not be support. Multiple directly to the sign shall be attached

Each sign

Nails shall NOT sign supports substrates to other types of procedures for attaching sign manufacturer’s recommended or screws. Use TxDOT’s or will be by bolts and nuts

Attachment to wooden supports

FLAGS ON SIGNS

greater

6’ or of at least the same gauge material.

should be at least 5 times nominal post size, centered on the splice and the sign substrate, not near the base of the support. Splice insert lengths above and two below the spice point. Splice must be located entirely behind height will only be allowed when the splice is made using four bolts, two

Splicing embedded perforated square metal tubing in order to extend post

GENERAL NOTES FOR WORK ZONE SIGNS

1. Contractor shall install and maintain signs in a straight and plumb condition and/or as directed by the Engineer.

2. Wooden sign posts shall be painted white.

3. Barricades shall NOT be used as sign supports.

4. All signs shall be installed in accordance with the plans or as directed by the Engineer. Signs shall be used to regulate, warn, and guide the traveling public safely through the work zone.

5. The Contractor may furnish either the sign design shown in the plans or in the "Standard Highway Sign Designs for Texas" (SHSD). The

Engineer/Inspector may require the Contractor to furnish other work zone signs that are shown in the TMUTCD but may have been omitted from the plans. Any variation in the plans shall be documented by written agreement between the Engineer and the Contractor’s

Responsible Person. All changes must be documented in writing before being implemented. This can include documenting the changes in the Inspector’s TxDOT diary and having both the Inspector and Contractor initial and date the agreed upon changes.

6. The Contractor shall furnish sign supports listed in the "Compliant Work Zone Traffic Control Device List" (CWZTCD). The Contractor shall install the sign support in accordance with the manufacturer’s recommendations. If there is a question regarding installation procedures, the Contractor shall furnish the Engineer a copy of the manufacturer’s installation recommendations so the Engineer can verify the correct procedures are being followed.

7. The Contractor is responsible for installing signs on approved supports and replacing signs with damaged or cracked substrates and/or damaged or marred reflective sheeting as directed by the Engineer/Inspector.

8. Identification markings may be shown only on the back of the sign substrate. The maximum height of letters and/or company logos used for identification shall be 1 inch.

DURATION OF WORK (as defined by the "Texas Manual on Uniform Traffic Control Devices" Part 6)

1. The types of sign supports, sign mounting height,the size of signs, and the type of sign substrates can vary based on the type of work being performed. The Engineer is responsible for selecting the appropriate size sign for the type of work being performed. The

Contractor is responsible for ensuring the sign support, sign mounting height and substrate meets manufacturer’s recommendations in regard to crashworthiness and duration of work requirements.

a. Long-term stationary - work that occupies a location more than 3 days.

more than one hour.

c. Short-term stationary - daytime work that occupies a location for more than 1 hour in a single daylight period.

d. Short, duration - work that occupies a location up to 1 hour.

e. Mobile - work that moves continuously or intermittently (stopping for up to approximately 15 minutes.)

SIGN MOUNTING HEIGHT

1. The bottom of Long-term/Intermediate-term signs shall be at least 7 feet, but not more than 9 feet, above the paved surface, except as shown for supplemental plaques mounted below other signs.

2. The bottom of Short-term/Short Duration signs shall be a minimum of 1 foot above the pavement surface but no more than 2 feet above

3. Long-term/Intermediate-term Signs may be used in lieu of Short-term/Short Duration signing.

appropriate Long-term/Intermediate sign height.

5. Regulatory signs shall be mounted at least 7 feet, but not more than 9 feet, above the paved surface regardless of work duration.

REFLECTIVE SHEETING

1. All signs shall be retroreflective and constructed of sheeting meeting the color and retro-reflectivity requirements of DMS-8300 for rigid signs or DMS-8310 for roll-up signs. The web address for DMS specifications is shown on BC(1).

1. All sign letters and numbers shall be clear, and open rounded type uppercase alphabet letters as approved by the Federal Highway

Administration (FHWA) and as published in the "Standard Highway Sign Design for Texas" manual. Signs, letters and numbers shall be of first class workmanship in accordance with Department Standards and Specifications.

REMOVING OR COVERING

1. When sign messages may be confusing or do not apply, the signs shall be removed or completely covered.

2. Long-term stationary or intermediate stationary signs installed on square metal tubing may be turned away from traffic 90 degrees when

3. Signs installed on wooden skids shall not be turned at 90 degree angles to the roadway. These signs should be removed or completely covered when not required.

4. When signs are covered, the material used shall be opaque, such as heavy mil black plastic, or other materials which will cover the

9. The Contractor shall replace damaged wood posts. New or damaged wood sign posts shall not be spliced.

1. The Contractor shall furnish the sign sizes shown on BC (2) unless otherwise shown in the plans or as directed by the Engineer.

intersections where the sign may be seen from approaching traffic.

the sign message is not applicable. This technique may not be used for signs installed in the median of divided highways or near any

1. The Contractor shall ensure the sign substrate is installed in accordance with the manufacturer’s recommendations for the type of sign support that is being used. The CWZTCD lists each substrate that can be used on the different types and models of sign supports.

2. "Mesh" type materials are NOT an approved sign substrate, regardless of the tightness of the weave.

3. All wooden individual sign panels fabricated from 2 or more pieces shall have one or more plywood cleat, 1/2" thick by 6" wide, fastened to the back of the sign and extending fully across the sign. The cleat shall be attached to the back of the sign using wood screws that do not penetrate the face of the sign panel. The screws shall be placed on both sides of the splice and spaced at 6" centers. The Engineer may approve other methods of splicing the sign face.

b. Intermediate-term stationary - work that occupies a location more than one daylight period up to 3 days, or nighttime work lasting

2. White sheeting, meeting the requirements of DMS-8300 Type A, shall be used for signs with a white background.

FL3. Orange sheeting, meeting the requirements of DMS-8300 Type B or Type C , shall be used for rigid signs with orange backgrounds.FL

4. Short-term/Short Duration signs shall be used only during daylight and shall be removed at the end of the workday or raised to

5. Burlap shall NOT be used to cover signs.

SIGN SUPPORT WEIGHTS

6. Duct tape or other adhesive material shall NOT be affixed to a sign face.

1. Where sign supports require the use of weights to keep from turning over, the use of sandbags with dry, cohesionless sand should be used.

2. The sandbags will be tied shut to keep the sand from spilling and to maintain a constant weight.

3. Rock, concrete, iron, steel or other solid objects shall not be permitted for use as sign support weights.

4. Sandbags should weigh a minimum of 35 lbs and a maximum of 50 lbs.

5. Sandbags shall be made of a durable material that tears upon vehicular

6. Rubber ballasts designed for channelizing devices should not be used for ballast on portable sign supports. Sign supports designed and manufactured with rubber bases may be used when shown on the CWZTCD list.

7. Sandbags shall only be placed along or laid over the base supports of the traffic control device and shall not be suspended above ground level or hung with rope, wire, chains or other fasteners. Sandbags shall be placed along the length of the skids to weigh down the sign support.

8. Sandbags shall NOT be placed under the skid and shall not be used to level sign supports placed on slopes.

impact. Rubber (such as tire inner tubes) shall NOT be used.

the sign face.

red-orange in color. Flags shall not be allowed to cover any portion of shall be 16 inches square or larger and shall be orange or fluorescent

1. Flags may be used to draw attention to warning signs. When used the flag entire sign face and maintain their opaque properties under automobile headlights at night, without damaging the sign sheeting.

7. Signs and anchor stubs shall be removed and holes backfilled upon completion of work.

BC(4)-14

DN: CK: DW: CK:

COUNTY

SECT

DIST

TxDOT TxDOT TxDOT TxDOT

HIGHWAY

SHEET NO.

CONT

F I

L E

D A

T E

7-13 o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R

30"

40"

27"

36"

24"

2x6

2x4 x 40"

72"

2x6

Front Side

Top that can be used for each approved sign support.

See the CWZTCD for the type of sign substrate

NOT be allowed. Posts shall be painted white.

Wood sign posts MUST be one piece. Splicing will

See BC(4) for definition of "Work Duration."

post wood

4x4 sign face

21 sq. ft. of

Maximum block

4x4 post wood

4x4 requirement height for sign

See BC(4)

This will be considered subsidiary to Item 502.

foundations shall be removed from the project site.

3. When project is completed, all sign supports and

CWZTCD List.

7 ft. circle, except for specific materials noted on the

2. No more than 2 sign posts shall be placed within a connection.

lag screws must be used on every joint for final supports, but 3/8" bolts with nuts or 3/8" x 3 1/2"

1. Nails may be used in the assembly of wooden sign

GENERAL NOTES

Front post wood

4x4 requirement height for sign

See BC(4) sign face

12 sq. ft. of

Maximum 24"

60"

2x6

2x6

Top block

4x4 skid

2x6 additional stability.

be increased for

Length of skids may

24" 2x4 brace

4x4 block4x4 block

Side screws

(min.) lag or 3/8" x 3 1/2"

3/8" bolts w/nuts

LONG/INTERMEDIATE TERM STATIONARY - PORTABLE SKID MOUNTED SIGN SUPPORTS

SKID MOUNTED WOOD SIGN SUPPORTS

PERFORATED SQUARE METAL TUBING

GROUND MOUNTED SIGN SUPPORTS

Two post installations can be used for larger signs.

The maximum sign square footage shall adhere to the manufacturer’s recommendation.

Refer to the CWZTCD and the manufacturer’s installation procedure for each type sign support.

4" max.

Gr ou nd s ur fa ce

WING CHANNEL

Post

Sign

Post

Base for embedment.

See the CWZTCD

48"

5’ square tubing or 1 3/4" x 1 3/4" with 5/16" holes

1 3/4" galv. round

(DO NOT SPLICE)

12 ga post

1 3/4" x 1 3/4" x 11 foot

CWZTCD LIST. SEE BC(1) FOR WEBSITE LOCATION.

AND SHORT TERM SUPPORTS CAN BE FOUND ON THE

MORE DETAILS OF APPROVED LONG/INTERMEDIATE

Posts of

Number

MOUNTED SIGN SUPPORTS

WOOD POST SYSTEM FOR GROUND

WEDGE ANCHORS

18"

4"

4"

6" of Traffic

Direction

Dia.(typ)

1 1/2"

"5 BOLT (TYP.)

3/8" X 4-1/2 gr.

3" telescopes into sleeve

(hole to hole) 12 ga. support

1 3/4 " x 1 3/4 " x 129" tubing diagonal brace to hole) 12 ga. square perforated

1 3/4 " x 1 3/4 " x 52" (hole tubing cross brace to hole) 12 ga. square perforated

1 3/4 " x 1 3/4 " x 32" (hole above pavement provide 7’ height telescope to

Upright must

5 bolt

3/8 " X 3" gr.

Gr ou nd s ur fa ce

Post

Sign

(Direct Embedment)

OPTION 1

max.

4"

Gr ou nd s ur fa ce

Post

Sign weak soils.

55" min. in strong soils, 34" min. in

(Anchor Stub)

OPTION 2

post) than sign

(1/4" larger

Anchor Stub desirable

9" max.

4"

Gr ou nd s ur fa ce

Post

Sign post) x 18" than sign

(1/2" larger sleeve reinforcing

Optional

18" weak soils.

55" min. in strong soils, 34" min. in

(Anchor Stub and Reinforcing Sleeve))

OPTION 3

post) than sign

(1/4" larger

Anchor Stub desirable

9" bolted anchor Lap-splice/base minimum

48" sign only thinwall plastic

10mm extruded

9 sq. ft. or less-

1/2" plywood is allowed.

the CWZTCD, except 5/8" plywood.

substrate listed in section J.2.d of

16 sq. ft. or less of any rigid sign

OTHER DESIGNS

"Traffic Engineering Standard Sheets" on BC(1)).

if approved by the Engineer. (See web address for face. They may be set in concrete or in sturdy soils sign supports for signs up to 10 square feet of sign on the SMD Standard Sheets may be used as temporary

Both steel and plastic Wedge Anchor Systems as shown

4" sign panel and supports

(2 per support) joining

3/8" x 3" gr. 5 bolt

FILE:

REVISIONS

C TxDOT bc-14.dgn

November 2002

9-07

36" match sideslope needed to pin at angle weld starts here weldhere starts weld back fill puddle.

weld, do not directions. Minimum going in opposite opposite sides

Welds to start on

48"

2"

Side View upright

12 ga.

2" x 2" x

2.5’

60"

3"

SKID MOUNTED PERFORATED SQUARE STEEL TUBING SIGN SUPPORTS

around tubing

Completely welded

7/16"

32’

SINGLE LEG BASE

5’ weld welded to skid tubing sleeve perforated

12 ga. square

(hole to hole)

2" x 2" x 8" tubing upright perforated

12 ga. square

(hole to hole)

1 3/4 " x 1 3/4 " x 129" tubing skid

12 ga. perforated

(hole to hole)

2" x 2" x 59"

Operations Traffic

TYPICAL SIGN SUPPORT

BARRICADE AND CONSTRUCTION

SHEET 5 OF 12

BC(5)-14

DN: CK: DW: CK:

COUNTY

SECT

DIST

REVISIONS

HIGHWAY

November 2002

F I

L E

D A

T E

SHEET 6 OF 12

Operations Traffic

MESSAGE SIGN (PCMS)

PORTABLE CHANGEABLE

BARRICADE AND CONSTRUCTION

TxDOT TxDOTTxDOT TxDOT FILE:

C TxDOT

9-07

PCMS SIGNS WITHIN THE R.O.W. SHALL BE BEHIND GUARDRAIL OR

CONCRETE BARRIER OR SHALL HAVE A MINIMUM OF FOUR (4)

PLASTIC DRUMS PLACED PERPENDICULAR TO TRAFFIC ON THE

LANES SHIFT in Phase 1 must be used with STAY IN LANE in Phase 2.* *

Roadway designation # IH-number, US-number, SH-number, FM-number

1. When Full Matrix PCMS signs are used, the character height and legibility/visibility requirements shall be maintained as listed in Note 15 under "PORTABLE

CHANGEABLE MESSAGE SIGNS" above.

shall maintain the legibility/visibility requirement listed above.

for, or replace that sign.

4. A full matrix PCMS may be used to simulate a flashing arrow board provided it meets the visibility, flash rate and dimming requirements on BC(7), for the same size arrow.

FULL MATRIX PCMS SIGNS

Access Road ACCS RD Major MAJ

Construction

WORDING ALTERNATIVES

1. The words RIGHT, LEFT and ALL can be interchanged as appropriate.

2. Roadway designations IH, US, SH, FM and LP can be interchanged as appropriate.

3. EAST, WEST, NORTH and SOUTH (or abbreviations E, W, N and S) can be interchanged as appropriate.

4. Highway names and numbers replaced as appropriate.

5. ROAD, HIGHWAY and FREEWAY can be interchanged as needed.

6. AHEAD may be used instead of distances if necessary.

7. FT and MI, MILE and MILES interchanged as appropriate.

8. AT, BEFORE and PAST interchanged as needed.

9. Distances or AHEAD can be eliminated from the message if a location phase is used.

3. When symbol signs are represented graphically on the Full Matrix PCMS, they shall only supplement the use of the static sign represented, and shall not substitute

APPLICATION GUIDELINES

1. Only 1 or 2 phases are to be used on a PCMS.

2. The 1st phase (or both) should be selected from the

"Road/Lane/Ramp Closure List" and the "Other Condition List".

3. A 2nd phase can be selected from the "Action to Take/Effect on Travel, Location, General Warning, or Advance Notice

Phase Lists".

4. A Location Phase is necessary only if a distance or location is not included in the first phase selected.

5. If two PCMS are used in sequence, they must be separated by and should be understandable by themselves.

6. For advance notice, when the current date is within seven days of the actual work date, calendar days should be replaced with days of the week. Advance notification should typically be for

CLOSED

BLVD

XXXXXXXX

LANE

IN

STAY

CONST AHD

CROSSING XING RT LN

Vehicles (s) VEH, VEHS

UPR LEVEL

LWR LEVEL

HR, HRS

1. The Engineer/Inspector shall approve all messages used on portable changeable message signs (PCMS).

2. Messages on PCMS should contain no more than 8 words (about four to eight characters per word), not including simple words such as "TO,"

"FOR," "AT," etc.

3. Messages should consist of a single phase, or two phases that alternate. Three-phase messages are not allowed. Each phase of the message should convey a single thought, and must be understood by itself.

4. Use the word "EXIT" to refer to an exit ramp on a freeway; i.e., "EXIT CLOSED." Do not use the term "RAMP."

5. Always use the route or interstate designation (IH, US, SH, FM) along with the number when referring to a roadway.

6. When in use the bottom of a stationary PCMS message panel should be a minimum 7 feet above the roadway, where possible.

7. The message term "WEEKEND" should be used only if the work is to start on Saturday morning and end by Sunday evening at midnight.

Actual days and hours of work should be displayed on the PCMS if work is to begin on Friday evening and/or continue into Monday morning.

8. The Engineer/Inspector may select one of two options which are avail-able for displaying a two-phase message on a PCMS. Each phase may be displayed for either four seconds each or for three seconds each.

9. Do not "flash" messages or words included in a message. The message should be steady burn or continuous while displayed.

10. Do not present redundant information on a two-phase message; i.e., keeping two lines of the message the same and changing the third line.

12. Do not display the message "LANES SHIFT LEFT" or "LANES SHIFT RIGHT" on a PCMS. Drivers do not understand the message.

the face of the sign.

14. The following table lists abbreviated words and two-word phrases that are acceptable for use on a PCMS. Both words in a phrase must be displayed together. Words or phrases not on this list should not be

PORTABLE CHANGEABLE MESSAGE SIGNS

SHOULD BE PLACED WITH ONE DRUM AT EACH OF THE FOUR CORNERS OF THE UNIT.

OF TRAFFIC. WHEN EXPOSED TO TWO WAY TRAFFIC, THE FOUR DRUMS

UPSTREAM SIDE OF THE PCMS, WHEN EXPOSED TO ONE DIRECTION

WHEN NOT IN USE, REMOVE THE PCMS FROM THE RIGHT-OF-WAY OR PLACE THE PCMS

BEHIND BARRIER OR GUARDRAIL WITH SIGN PANEL TURNED PARALLEL TO TRAFFIC

WORD OR PHRASEABBREVIATION ABBREVIATION WORD OR PHRASE

2. When symbol signs, such as the "Flagger Symbol"(CW20-7) are represented graphically on the Full Matrix PCMS sign and, with the approval of the Engineer, it abbreviated, unless shown in the TMUTCD.

bars is appropriate.

PCMS has malfunctioned. A pattern such as a series of horizontal solid not alarm motorists and will only be used to alert workers that the

17. If disabled, the PCMS should default to an illegible display that will left or right justified.

16. Each line of text should be centered on the message board rather than and must be legible from at least 400 feet.

daylight. Truck mounted units must have a character height of 10 inches should be legible from at least 600 feet at night and 800 feet in units. They should be visible from at least 1/2 (.5) mile and the text

15. PCMS character height should be at least 18 inches for trailer mounted

13. Do not display messages that scroll horizontally or vertically across

11. Do not use the word "Danger" in message.

7-13 o f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R no more than one week prior to the work.

a minimum of 1000 ft. Each PCMS shall be limited to two phases, RECOMMENDED PHASES AND FORMATS FOR PCMS MESSAGES DURING ROADWORK ACTIVITIES

Phase 2: Possible Component Lists

CAUTION

USE

Notice List

** Advance

List

Warning

XX MPH

SPEED

ADVISORY

XX MPH

LIMIT

SPEED

XX MPH

SPEED

MAXIMUM

XX MPH

SPEED

MINIMUM

EXIT

LANE

RIGHT

SAFELY

DRIVE

CARE

WITH

DRIVE

X PM

XX AM-

TUE-FRI

MONDAY

BEGINS

MAY XX

BEGINS

XX AM

XX PM -

MAY X-X

X PM-X AM

XX

APR XX-

FRI-SUN

NEXT

XX PM

TO

XX AM

AUG XX

TUE

NEXT

XX AM

XX PM-

TONIGHT

Road/Lane/Ramp Closure List

(The Engineer may approve other messages not specifically covered here.)

DELAYS

EXPECT

Other Condition List

Phase 1: Condition Lists

See Application Guidelines Note 6.

List

Action to Take/Effect on Travel

List

Location

XXX FT

CLOSED

SHOULDER

XXX FT

CLOSED

RIGHT LN

X MILE

CLOSED

EXIT XXX

CLOSED

TO BE

RIGHT LN

CLOSED

ROAD

FRONTAGE

OPEN

LANES

RIGHT X

CLOSURES

LANE

DAYTIME

CLOSED

EXIT

I-XX SOUTH

TUE - FRI

CLOSED

X LANES

XXX FT

ROADWORK

XXXX FT

FLAGGER

XXXX FT

NARROWS

RIGHT LN

XXXX FT

TRAFFIC

MERGING

XXXX FT

GRAVEL

LOOSE

X MILE

DETOUR

SH XXXX

PAST

ROADWORK

XXXX FT

BUMP

XXXX FT

SIGNAL

TRAFFIC

XXXX FT

REPAIRS

ROAD

XXXX FT

NARROWS

LANE

XX MILE

TRAFFIC

TWO-WAY

XXXX FT

LANES

UNEVEN

XXXX FT

ROAD

ROUGH

FRI-SUN

NEXT

ROADWORK

X MILES

EXIT

US XXX

SHIFT

LANES

SOUTH

US XXX

STAY ON

RIGHT

MERGE

X EXITS

NEXT

DETOUR

US XXX N

USE

TRUCKS

TRUCKS

FOR

WATCH

XXX FT

SPEED

REDUCE

ROUTES

OTHER

USE

RIGHT

X LINES

FORM

RD EXIT

XXXXX

USE

NORTH

I-XX

USE EXIT

TO I-XX N

I-XX E

USE

TRUCKS

FOR

WATCH

DELAYS

EXPECT

STOP

TO

PREPARE

USE

SHOULDER

END

WORKERS

FOR

WATCH

FM XXXX

AT

CROSSING

RAILROAD

BEFORE

MILES

X

NEXT

EXIT

US XXX

PAST

XXXXXXX

TO

XXXXXXX

FM XXXX

TO

US XXX

XXX FT

TRAFFIC

CONST

EXIT XXX

USE

CLOSED

EXIT

X MILE

CLOSED

FREEWAY

CLOSED

LANES

RIGHT X

CLOSED

LANES

VARIOUS

AT SH XXX

CLOSED

ROAD

FM XXXX

CLSD AT

ROAD

CLOSED

LANE

CENTER

CLOSURES

LANE

NIGHT

CLOSED

DRIVEWAY

MALL

BC(6)-14

f t h i s s t a n d a r d t o o t h e r f o r m a t s o r f o r i n c o r r e c t r e s u l t s o r d a m a g e s r e s u l t i n g f r o m i t s u s e k i n d d e

D O

T f o r a n y p u r p o a t s o e v e

D O

T a s s u m e s n o r e s p o n s i b i l i t y f o r t h e c o n v e r s i e u s e o f t h i s s t a n d a r d i s g o v e r n e d b y t h e

T e x g i n e e r i a c t i t r r a n t y o f a n y

D I

S C

L A I

M E

R

F I

L E

D A

T E

SHEET 7 OF 12

CONCRETE TRAFFIC BARRIER (CTB)

LOW PROFILE CONCRETE BARRIER (LPCB)

16"

DELINEATION OF END TREATMENTS

BARRIER REFLECTORS FOR CONCRETE TRAFFIC BARRIER AND ATTENUATORS

treatments and manufacturers.

the CWZTCD List for approved end

Highway Research Report 350. Refer to as defined in the National Cooperative zones shall meet crashworthy standards

End treatments used on CTB’s in work

END TREATMENTS FOR

CTB’S USED

IN WORK ZONES

WARNING LIGHTS

1. Warning lights shall meet the requirements of the TMUTCD.

2. Warning lights shall NOT be installed on barricades.

3. Type A-Low Intensity Flashing Warning Lights are commonly used with drums. They are intended to warn of or mark a potentially hazardous

4. Type-C and Type D 360 degree Steady Burn Lights are intended to be used in a series for delineation to supplement other traffic control devices. Their use shall be as indicated on this sheet and/or other sheets of the plans by the designation "SB".

5. The Engineer/Inspector or the plans shall specify the location and type of warning lights to be installed on the traffic control devices.

6. When required by the Engineer, the Contractor shall furnish a copy of the warning lights certification. The warning light manufacturer will certify the warning lights meet the requirements of the latest ITE Purchase Specifications for Flashing and Steady-Burn Warning Lights.

WARNING LIGHTS MOUNTED ON PLASTIC DRUMS

1. Type A flashing warning lights are intended to warn drivers that they are approaching or are in a potentially hazardous area.

2. Type A random flashing warning lights are not intended for delineation and shall not be used in a series.

3. A series of sequential flashing warning lights placed on channelizing devices to form a merging taper may be used for delineation. If used, the successive flashing of the sequential warning lights should occur from the beginning of the taper to the end of the merging taper in order to identify the desired vehicle path. The rate of flashing for each light shall be 65 flashes per minute, plus or minus 10 flashes.

4. Type C and D steady-burn warning lights are intended to be used in a series to delineate the edge of the travel lane on detours, on lane changes, on lane closures, and on other similar conditions.

5. Type A, Type C and Type D warning lights shall be installed at locations as detailed on other sheets in the plans.

6. Warning lights shall not be installed on a drum that has a sign, chevron or vertical panel.

7. The maximum spacing for warning lights on drums should be identical to the channelizing device spacing.

1. A warning reflector or approved substitute may be mounted on a plastic drum as a substitute for a Type C, steady burn warning light at the discretion of the Contractor unless otherwise noted in the plans.

2. The warning reflector shall be yellow in color and shall be manufactured using a sign substrate approved for use with plastic drums listed on the CWZTCD.

3. The warning reflector shall have a minimum retroreflective surface area (one-side) of 30 square inches.

4. Round reflectors shall be fully reflectorized, including the area where attached to the drum.

5. Square substrates must have a minimum of 30 square inches of reflectorized sheeting. They do not have to be reflectorized where it attaches to the drum.

6. The side of the warning reflector facing approaching traffic shall have sheeting meeting the color and retroreflectivity requirements for

7. When used near two-way traffic, both sides of the warning reflector shall be reflectorized.

8. The warning reflector should be mounted on the side of the handle nearest approaching traffic.

9. The maximum spacing for warning reflectors should be identical to the channelizing device spacing requirements.

WARNING REFLECTORS MOUNTED ON PLASTIC DRUMS AS A SUBSTITUTE FOR TYPE C (STEADY BURN) WARNING LIGHTS

Reflectors

Barrier

3. Where traffic is on one side of the CTB, two (2) Barrier Reflectors shall be mounted in approximately the midsection of each section of CTB.

An alternate mounting location is uniformly spaced at one end of each

CTB. This will allow for attachment of a barrier grapple without damaging the reflector. The Barrier Reflector mounted on the side of the CTB shall be located directly below the reflector mounted on top of the barrier, as shown in the detail above.

4. Where CTB separates two-way traffic, three barrier reflectors shall be mounted on each section of CTB. The reflector unit on top shall have two yellow reflective faces (Bi-Directional)while the reflectors on each side of the barrier shall have one yellow reflective face, as shown in the detail above.

5. When CTB separates traffic traveling in the same direction, no barrier reflectors will be required on top of the CTB.

6. Barrier Reflector units shall be yellow or white in color to match the edgeline being supplemented.

7. Maximum spacing of Barrier Reflectors is forty (40) feet.

8. Pavement markers or temporary flexible-reflective roadway marker tabs shall NOT be used as CTB delineation.

9. Attachment of Barrier Reflectors to CTB shall be per manufacturer’s recommendations.

10.Missing or damaged Barrier Reflectors shall be replaced as directed by the Engineer.

11.Single slope barriers shall be delineated as shown on the above detail.

See D & OM (VIA) recommendations.

as per manufacturer’s

3 Barrier Reflectors

Install a minimum of

TRUCK-MOUNTED ATTENUATORS

Type C Warning Light or approved substitute mounted on a drum adjacent to the travel way.

4. The Flashing Arrow Board should be able to display the following symbols:

control devices that should be used in conjunction with the Flashing Arrow Board.

3. The Engineer/Inspector shall choose all appropriate signs, barricades and/or other traffic or work on shoulders unless the "CAUTION" display (see detail below) is used.

2. Flashing Arrow Boards should not be used on two-lane, two-way roadways, detours, diversions moving maintenance or construction activities on the travel lanes.

1. The Flashing Arrow Board should be used for all lane closures on multi-lane roadways, or slow to bottom of panel.

14. Minimum mounting height of trailer mounted Arrow Boards should be 7 feet from roadway flash rate and dimming requirements on this sheet for the same size arrow.

13. A full matrix PCMS may be…