CONTRACT: 26PSX0014

Electrical Service Units and Sign Installation Units

Attachment 1

CTDOT Standard Sheets and

Special Provisions

LEGEND AS SHOWN ON TRAFFIC CONTROL SIGNAL PLAN:

HANDHOLE

RIGID METAL CONDUIT

SAW CUT

INDUCTIVE LOOP DETECTOR

LOOP

ACCEPTABLE SAW CUT

NOT ACCEPTABLE SAW CUT

DETAIL "B"

DETAIL "A"

DETAIL "D"

DETAIL "J"

DETAIL "L"DETAIL "K"

DETAIL "E"

OF SAWCUT SEALANT.

TO PREVENT ENTRANCE

DUCT SEAL END OF LFNC

CURB OR EDGE OF ROAD IN NON-CURBED AREAS

(WHERE REQUIRED)

CONCRETE HANDHOLE

TAMPED SAND

SEALING COMPOUND

ƒ" (19) CRUSHED STONE

TO CONTROLLER.

WITHOUT SPLICE

CONTINUOUS

14/2 LEAD-IN

FRONT VIEW

DETAIL "C"

OUTSIDE OF HANDHOLE.

ENOUGH TO MAKE SPLICE

48" (1200) MAX SLACK - ONLY

#8 AWG BONDING WIRE

CUT OFF DRAIN WIRE

NYLON TIE WRAP

14/2 LEAD-IN.

IMSA SPEC 50-2.

LOSS OF SEALANT.

OR DUCT SEAL TO PREVENT

AND HOLE WALL WITH SAND

PACK SPACE BETWEEN LFNC

1" (25) LFNC

HANDHOLE

CURB OR EDGE OF PAVEMENT

K K

RMC

PRESSURE - TYPE WIRE

CONNECTORS ARE POINTED UP.

TIE WRAP SO WIRE

NOTE:

HOME RUN LOOP CONDUCTORS:

NOTES:

RECOMMENDED SAW BLADE: 14" x …" (350 x 10) PRODUCES ‹" (11) SLOT.

DO NOT OVERLAP MORE THAN TWO SAWCUTS.

SEGMENTED LOOPS, 3 TURNS EACH

TYPICAL WINDING

PREVENT FLOATING.

IN PLACE EVERY 24" (600) TO

FOAM BACKER ROD WEDGED

1" (25) OF ‚" (6) OD TUBING OR

TWIST, SOLDER AND

WIRE CONNECTOR.

CHISEL INSIDE OF

TWIST HOME RUN LOOP CONDUCTORS

IN CONDUIT - 5 TURNS PER FOOT

(16 TURNS PER METER)

TO CREATE A UNIFORM MAGNETIC FIELD, WIND

ADJACENT LOOPS IN OPPOSITE DIRECTIONS.

1ƒ" TO 3"

(45 TO 75)

(50|)

2"|

EDGE OF ROAD.

IS WITHIN 36" (900) OF CURB OR

RMC NOT REQUIRED IF HANDHOLE

(300)

12"

12" |

(300|)

(600)

24"

6" (150)

HOME RUN LOOP WIRE

OFF EXCESS - 2 MIN.

2"|

(50)|

(100)|

4"|

14 AWG. XLP INSULATED IN ‰" (5) ID

POLYETHYLENE TUBING. IMSA SPEC 51-7.

HAND TIGHT. CUT

AND SHIELD FLUSH

WITH INSULATION.

(13)

TRIM TO •"| (13|)

INSERT SPLICE SO

IS INSIDE CASE OF

THAT INSULATION

FOR WET, DAMP AND CORROSIVE

APPLICATIONS. ONE TIME USE ONLY.

DISCARD ALL REMOVED CONNECTORS.

DRILL HOLE FOR LFNC AT 45°| SLANT

12"| (300|)

DETECTOR LOOP CORNERS,

FULL DEPTH OF SAWCUT.

(TYP INSIDE CORNERS)

…" (10)

…" (10)

(300)

12"

(600)

24"

EVERY 24"| (600|)

WEDGE PLACED

1ƒ" TO 3"

(45 TO 75)

‹" (11)

‰"| (5|)

TO FORCE SEALANT TO BOTTOM OF

SAWCUT. FULLY ENCAPSULATE LOOP

WIRE AND WEDGE WITH SEALANT.

12" (300)

CONNECTOR (TYP).

LOOP LEAD-IN

SPLICE TYP.

ENLARGED VIEW

NONMETALIC CONDUIT (LFNC)

1" (25) LFNC DIRECT BURIAL

LIQUIDTIGHT FLEXIBLE

WATER RESISTANT CONNECTOR DESIGNED

WHEN MACHINE OR CAULK GUN IS

USED, INSERT NOZZLE INTO SAWCUT

D7

D7

D7

D4

D4

D4

D4A

D4B

D4B

POLYESTER SEALANT

ONLY USE POLYESTER COMPOUND AS SEALANT, UNLESS OTHER TYPE IS APPROVED BY ENGINEER.

FILL SEALANT FLUSH WITH PAVEMENT. SQUEEGEE

EXCESS SEALANT AWAY FROM SAWCUT.

SURFACE

ROADWAY

DRILLED HOLE, 1•"| (38|)

WEDGE (TYP

DIMENSIONS ARE IN ENGLISH ('.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

4/21/2014

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

CTDOT_TRAFFIC_STD.DGNFilename: Model:

APPROVED BY:

TR-1111_01

SUBMITTED BY: NAME/DATE/TIME:

NAME/DATE/TIME:

C

ONNECTICU

T

D E

P A

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M E

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O F TRAN

S

P O

R T

A T I

O N

STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

STANDARD SHEET

CTDOT

TR-1111_01

LOOP VEHICLE DETECTOR

AND SAWCUT

4-2012 MINOR REVISIONS.

D7

D7

D7

D4

D4

D4

D4A

D4B

D4B

EQUAL DEPTH AT CORNERS.

OVERLAP SAWED SLOTS

TO SLOTS TO INSURE

MIN. 1" (25)

TUBING. IMSA SPEC 51-7.

EXAMPLE A EXAMPLE B

SEE TRAFFIC SIGNAL PLAN FOR ACTUAL LOOP PLACEMENT, NUMBERS, ETC...

LOOP SEGMENTS ON SAME AMPLIFIERS MAY SHARE HOME RUN SAW CUT. SPLICE SEGMENTS IN SERIES.

LOOP SEGMENTS ON DIFFERENT AMPLIFIERS MUST BE IN SEPARATE HOME RUN SAW CUT.

1' (300)|

WEDGE (TYP)

‚" (6) OD POLYETHLYENE

SAW CUT LOOP & HOME RUN DEPTH TO ENSURE MIN. 1" (25) SEALANT COVERAGE.

1' (300)|

2#14

6#14

4#14

REAR SEGMENTS ALSO USED FOR VOLUME COUNTS

#14 AWG. XLP, WITHIN

WET SAW CUT ONLY, DRY SAW CUT NOT PERMITTED.

REFER TO STANDARD SPECIFICATIONS, SECTION 11-11.

HOME RUN SAWCUT

2#14 LOOP WIRES IN

RECESS LNFC TO ENSURE

MIN. 1•" (38) COVER

SEE DETAIL "A"

SEE DETAIL "B"

SEE DETAIL "C"

SEE DETAIL "D"

SEE DETAIL "E"

SEE DETAIL "J" SEE DETAIL "L"

LOOP DETECTOR SAWCUT AND LEAD-IN

TYPICAL PLAN VIEW

LOOP DETECTOR LEAD-IN

TYPICAL ELEVATION VIEW

7-2012

TR-1010_01, INSERT DETAIL)

TO STANDARD SHEET

"J" HOOK (TYP-REFER

4-2014 DETAIL "B" - REVISED "J" HOOK NOTE.

DELETED URETHANE SEALANT NOTE FROM DETAIL "L"

RIGID METAL CONDUIT

SAW CUT

INDUCTIVE LOOP DETECTOR

FUNCTIONCOLORPIN

OHMETER

CA

LEAD-IN

MEGOHMETER

CA

LEAD-IN

D6B

D6A

D5

D4B REAR

D4A FRONT

D2B

D2A

D1 REAR

D1 FRONT

TOWN: LOCATION:

PROJECT:

DOCUMENT ALL LOOP DETECTOR VALUES BOTH CALCULATED AND MEASURED.

WHERE:

14/2

LOOP

14/2

LOOP

14/2

T

1 2 3

LOOP

LOOP

LOOP

14/2

14/2

14/2

R E S I S

T A

N C

E o h m s

R = E / I

VOLTAGE

SOURCE

AMMETER (I)

VOLTMETER (E)

V

(3000) (6000) (9000) (12000) (15000)

DISTANCE

10' 20' 30' 40' 50' (D)

LOOP

R R RR

TEST 1a

TEST 1b

INDUCTIVE LOOP TEST PROCEDURE

3 POINT FALL-OF-POTENTIAL GROUND RESISTANCE TEST

DETECTOR AMPLIFIER PIN DESIGNATION

DEFINITIONS:

1: RESISTANCE:

2: LOOP CIRCUIT INDUCTANCE:

LOOP INDUCTANCE (ENGLISH) LOOP INDUCTANCE (METRIC)

LEAD-IN INDUCTANCE LEAD-IN INDUCTANCE

L = (P/4) (N + N) L = (3.28P/4) (N + N)

L = (0.24 /FT) (D) L = (0.78 /m) (D)

2a: CALCULATE INDUCTANCE OF LOOP (L ) AND LEAD-IN CABLE (L ).

LOOP

14/2

T

T

L = 120

L = (6) (20)

L = (24/4) (4 + 4)

6' x 6', 4 TURNS, APPROXIMATELY 300' FROM THE CONTROLLER

EXAMPLE: (IN ENGLISH)

L , L , L = INDUCTANCE OF INDIVIDUAL LOOP SEGMENTS.

L = TOTAL INDUCTANCE OF THE SEGMENTED ARRANGEMENT.

WHERE:

L = 72

L = (0.24) (300)

L = (0.24 /FT) (300)

INSTRUMENT DESIGNED TO MEASURE LOOP CIRCUIT INDUCTANCE.

2b: MEASURE INDUCTANCE OF LOOP AND LEAD-IN AT CONTROLLER. USE

NUMBER

LOOP

INTERRUPTION

POWER

AMPLIFIER

(1a)

TO GROUND

(1b)

LOOP WIRE

(2a)

CALCULATED

(2b)

MEASURED

(3)

PASS/FAIL

(EXAMPLE)

LOOP CIRCUIT TEST DATA

TEST CIRCUIT

3 POINT GROUND RESISTANCE

(EXAMPLE)

GROUND RESISTANCE CHART

ROD (X)

GROUND

ELECTRODE (P)

POTENTIAL

ELECTRODE (C)

CURRENT

(3000)

10'

(6000)

20'

(9000)

30'

(12000)

40'

(15000)

50' (D)

GREY

GREEN

BLUE

YELLOW

ORANGE

RED

BLACK

BROWN

WHITE

Shell

J

H

G

F

E

D

C

B

A

Ground (shall be connected to pin H in the connector)

110 VAC Delay/Extend Override

Chassis Ground

Output Relay Contact (Opens with moving contact when detecting vehicle)

Output Relay Contact (Closes with moving contact when detecting vehicle)

Loop

Loop

110 VAC (Fused)

Output Relay Common (moving contact)

110 VAC Neutral

OHMS

RESISTANCE

MICROHENRIES ( )

INDUCTANCE

BY EXOTHERMIC WELDING TECHNIQUE.

GRID CONNECTIONS AND BONDS ON GROUND GRID SHALL BE MADE BY CLAMPS DESIGNED FOR DIRECT BURIAL OR

MINIMUM DEPTH OF 18" (450).

REFER TO NEC SECTION 250.

REFER TO NESC SECTION 09, RULE 94.B.3.

OR PLATES.

B. IN AREAS OF SHALLOW BEDROCK, INSTALL A GROUND GRID OR ARRAY CONSISTING OF BURIED WIRE, RODS, STRIPS

TOP OF ADDITIONAL GROUND ROD(S) SHALL BE 6" (150) BELOW GRADE.

WELDING TECHNIQUE.

BONDS TO ADDITIONAL GROUND ROD(S) SHALL BE MADE BY A CLAMP DESIGN FOR DIRECT BURIAL OR BY EXOTHERMIC

MINIMUM 6' (1800) APART.

DRIVE ADDITIONAL GROUND RODS NO CLOSER TO FOUNDATION THAN 6' (1800). IF MORE THAN ONE IS NEEDED, SPACE

REFER TO NESC SECTION 09, RULE 94.B.2.

A. INSTALL ADDITIONAL 10' (3000) GROUND ROD(S).

SUGGESTED CORRECTIVE ACTION:

- IF GROUND RESISTANCE IS GREATER THAN 10 OHMS, PERFORM CORRECTIVE ACTION AND RE-TEST.

SEE EXAMPLE CHART: CURVE FLATTENS OUT AT 10 OHMS, APPROXIMATELY 30' (9000) FROM FOUNDATION.

- THE ACTUAL GROUND RESISTANCE IS WHERE THE PLOTTED CURVE IS RELATIVELY FLAT, USUALLY AT 62%| OF D.

- PLOT THE VALUES ON A RxD GROUND RESISTANCE CHART.

- CALCULATE RESISTANCE (R) AT EACH LOCATION OF P USING THE FORMULA R=E/I.

- MEASURE VOLTAGE (E) AT EACH LOCATION OF P.

- INSERT POTENTIAL ELECTRODE (P) AT 5' (1500) INTERVALS IN A STRAIGHT LINE TO ELECTRODE C.

- MEASURE THE CURRENT FLOW (I) BETWEEN X AND C.

- CONNECT A VOLTAGE SOURCE AND AMMETER BETWEEN THE FOUNDATION GROUND ROD (X) AND C.

- INSERT ELECTRODE (C) A DISTANCE (D) FROM THE FOUNDATION. RECOMMEND A MINIMUM 50'.

TEST PROCEDURE:

NOTES:

AS A SPECIALIZED TEST INSTRUMENT.

AND COMMUNCATIONS FACILITIES.

LOOP: #14 AWG WIRE IN SAWCUT, TERMINATED IN HANDHOLE, IMSA SPEC 51-7.

LEAD-IN: 14/2 SHIELDED TWISTED PAIR CABLE FROM HANDHOLE TO CONTROLLER, IMSA SPEC 50-2.

LOOP CIRCUIT: LOOP SAWCUT WIRE SPLICED TO 14/2 LEAD-IN CABLE.

AMPLIFIER: ELECTRONIC DEVICE CONNECTED TO LOOP CIRCUIT. SENSES CHANGE IN RESONANT

FREQUENCY AND CREATES AN OUTPUT TO THE CONTROLLER.

MEGOHMETER: INSTRUMENT SPECIFICALLY DESIGNED TO TEST THE INSULATION RESISTANCE OF A

CIRCUIT. COMMON MANUFACTURERS: AMEC , AMPROBE , FLUKE , MEGGER .

1a: INSULATION RESISTANCE: PERFORM A 600 VOLT (MINIMUM) MEGOHMETER TEST ON LOOP CIRCUIT. THE

LOOP AMPLIFIER MUST BE DISCONNECTED FROM THE LOOP CIRCUIT OR THE LOOP AMPLIFIER WILL BE

DAMAGED. THE RESISTANCE OF THE LOOP WIRE TO GROUND MUST BE GREATER THAN 100 MEG OHMS.

1b: WIRE RESISTANCE: MEASURE THE DC RESISTANCE OF THE LOOP CIRCUIT. THE LOOP CIRCUIT MUST BE

DISCONNECTED FROM THE AMPLIFIER. USING AN OHMMETER CONNECTED ACROSS THE LOOP CIRCUIT, MEASURE THE DC RESISTANCE OF THE CONDUCTORS. THE RESISTANCE SHOULD BE LESS THAN 4 OHMS.

NOTE: ALL TESTS SHALL BE DONE AT THE CONTROLLER ASSEMBLY (CA), HOWEVER IT IS RECOMMENDED TO

PERFORM A PRELIMINARY MEGOHMETER TEST AT THE HANDHOLE PRIOR TO SEALING THE SAWCUT AND

SPLICING TO THE LEAD-IN. IF A DEFECTIVE LOOP WIRE IS FOUND, IT MAY BE EASILY REPLACED.

(TOTAL INDUCTANCE OF SEGMENTED LOOP SPLICED IN PARALLEL.

L = 1 / [(1 / L ) + (1 / L ) + (1 / L ) + etc.], (TOTAL INDUCTANCE OF SEGMENTED LOOP SPLICED IN SERIES.)

L = L + L + L etc., IN FEET OR METERS.

D = LENGTH OF LEAD-IN CABLE FROM SPLICE IN HANDHOLE TO CONTROLLER,

N = NUMBER OF TURNS.

P = PERIMETER OF INDIVIDUAL LOOP SEGMENT, IN FEET OR METERS.

L = INDUCTANCE OF LEAD-IN CABLE.

L = INDUCTANCE OF INDIVIDUAL LOOP SEGMENTS IN MICROHENRIES ( ).

CALCULATE RESISTANCE AT 5' | (1500|) INTERVALS

2" (50) RMC

2" (50) RMC

RE-TUNES AUTOMATICALLY WITHOUT ANY MANUAL ADJUSTMENTS.

FUSE OR HARNESS CONNECTOR. RETURN POWER TO THE AMPLIFIER AND CONFIRM IT

AFTER THE AMPLIFIER HAS TUNED AND IS OPERATING, DISCONNECT POWER BY REMOVING

DIMENSIONS ARE IN ENGLISH ('.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

1/7/2014

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

TR-1000_01

NAME/DATE/TIME:

C

ONNECTICU

T

D E

P A

R T

M E

N T

O F TRAN

S

P O

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A T I

O N

STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

GENERAL CLAUSES

(TEST PROCEDURES)

4-2012 MINOR REVISIONS.

3: POWER INTERRUPTION:

1. WHEN REQUESTED BY THE ENGINEER, MEASURE RESISTANCE-TO-GROUND OF GROUND ROD AT

TRAFFIC CONTROL FOUNDATIONS. SEE FALL-OF-POTENTIAL METHOD. IF LESS THAN 10 ohms, INSTALL SUPPLEMENTAL ELECTRODES AS REQUIRED. NEC ARTICLE 250.

2. DURING THE TEST, THE GROUND ROD SHOULD NOT BE BONDED TO ANY RMC IN THE FOUNDATION.

3. THE VOLTAGE SOURCE, VOLTMETER, AMMETER, ELECTRODES P AND C, AND CONNECTING CABLES ARE AVAILABLE

4. REFER TO NATIONAL ELECTRICAL SAFETY CODE (NESC) SECTION 09, GROUNDING METHODS FOR ELECTRIC SUPPLY

5. REFER TO NATIONAL ELECTRICAL CODE (NEC) CHAPTER 2, ARTICLE 250, GROUNDING.

1-2014 REVISED GROUND RESISTANCE NOTES.

Rev. Date 04-26

ITEM #1111401A, 1111451A

ITEM #1111401A - LOOP VEHICLE DETECTOR

ITEM #1111451A - LOOP DETECTOR SAWCUT

Replace Section 11.11, LOOP VEHICLE DETECTOR AND SAWCUT, with the following:

11.11.01 – Description:

1. Furnish and install a loop vehicle detector amplifier.

2. Sawcut pavement. Furnish and install loop detector wire in sawcut.

11.11.02 – Materials:

Article M.16.12

M.16.12 - LOOP VEHICLE DETECTOR AND SAWCUT

1. Loop Vehicle Detector:

• Comply with National Electrical Manufacturers Association (NEMA) standards, Section 6.5, Inductive Loop Detectors.

• Comply with the current CT DOT Functional Specifications for Traffic Control Equipment, Section 3 B, Loop Vehicle Detector with Delay/Extend Option.

2. Sawcut:

(a) Wire in sawcut:

• International Municipal Signal Association (IMSA) Specification 51-7, single conductor cross-linked polyethylene insulation inside polyethylene tube.

• # 14 AWG

(b) Sealant:

(1) Polyester Resin Compound

• Two-part polyester which to cure, requires a liquid hardener.

• Use of a respirator not necessary when applied in an open-air environment.

• Cure time dependent on amount of hardener mixed.

• Flow characteristics to guarantee encapsulation of loop wires.

• Viscosity: 4000 CPS to 7000 CPS at 77 degrees Fahrenheit (25o C).

• Form a tack-free skin within 25 minutes and full-cure within 60 minutes at 77 degrees

Fahrenheit (25o C).

• When cured, resist effects of weather, vehicular abrasion, motor oil, gasoline, antifreeze, brake fluid, de-icing chemicals, salt, acid, hydrocarbons, and normal roadway encounters.

• When cured, maintain physical characteristics throughout the ambient temperature ranges experienced within the State of Connecticut.

• When cured, bonds (adheres) to all types of road surfaces.

• Weight per Gallon (3.8 l): 11 lbs ±1 lb (5kg ± .45kg)

ITEM #1111401A, 1111451A

• Show no visible signs of shrinkage after curing.

• 12-month shelf life of unopened containers when stored under manufacturers specified conditions.

• Cured testing requirements:

• Gel time at 77 degrees F (25° C): 15 - 20 minutes, ASTM C881, D-2471

• Shore D Hardness at 24 hours: 55-78, ASTM D-2240

• Tensile Strength: > 1000 psi (6895 kPa), ASTM D-638

• Elongation: 18 - 20 %, ASTM D-638

• Adhesion to steel: 700 - 900 psi (4826 - 6205 kPa), ASTM D-3163

• Absorption of water, sodium chloride, oil, and gasoline: < 0.2%, ASTM D-570

• Include in the Certificate of Compliance:

• Manufacturer’s confirmation of the uncured and cured physical properties stated above.

• Material Safety Data Sheet (MSDS) stating sealant may be applied without a respirator in an open-air environment.

• Designed to allow clean-up without the use of solvent that is harmful to the workers and the environment.

2. Miscellaneous:

(a) Liquidtight Flexible Nonmetallic Conduit

• UL listed for direct burial

• UL 1660

• Smooth polyvinyl chloride inner surface

(b) Water Resistant Pressure Type Wire Connector

• Ul listed for direct burial and wet locations

• UL 486D

11.11.03 - Construction methods:

1. Loop Vehicle Detector

• Shelf-mount the detector amplifier in the controller cabinet.

• Terminate the harness conductors with crimped spade connectors. Connect conductors to appropriate terminals, eg, black wire to 110vac, white wire to 110vac neutral.

• Tie loop harness and conductors to controller cabinet wiring harness. Leave enough slack in loop harness so that amplifier may be moved around on cabinet shelf; ± 2 feet (0.6 meter) slack.

• Attach a loop identification tag to the harness. Record pertinent detector information on the tag with indelible ink. See example below.

o Loop No.: D4 o Phase Call: Phase 4 o Field Location: Rt. 411(West St.)

o Eastbound, Left Lane o Detector No.: 4 o Cabinet Terminals: 234, 235

ITEM #1111401A, 1111451A

2. Loop Detector Sawcut

• Loop size, number of turns, and location is shown on the intersection plan.

• Do not cut through a patched trench, damaged or poor-quality pavement without the approval of the Engineer.

• Wet-cut pavement with a power saw using a diamond blade ⅜ inch (9.5mm) wide. Dry cut is not allowed.

• Ensure slot depth is between 1 ¾ inch to 2.0 inch (45mm to 50mm).

• Overlap corners to ensure full depth of cut.

• To prevent wire kinking and insulation damage, chamfer inside of corners that are ≤ 120 degrees.

• Clean all cutting residue and moisture from slot with oil-free compressed air. Ensure slot is dry before inserting wire and sealing sawcut.

• Cut home run, from loop to curb or edge-of-road, as shown on the typical installation sheet.

• To prevent cross-talk and minimize electrical interference, twist home-run wires, from edge of road to handhole, with at least 5 turns per foot (16 turns per meter). Tape together twisted home-run wires at 2 foot (0.6 meter) ± intervals.

• In new or resurfaced pavement, install loops in the wearing course. If the wearing course is not scheduled for immediate placement (within 24 hours) after the base course, provide temporary detection when directed by the Engineer. Temporary detection may be sawcut loops, preformed loops, microwave sensor, video, or other method approved by the Engineer.

• Splice(s) not allowed anywhere in loop wire either in loop or in home run.

• Ensure wires are held in place at bottom of slot by inserting at 2-foot (0.6 m) intervals, 1 inch sections of foam backer rod or wedges formed from 1 inch (25mm) sections of the polyethylene tubing. Loop detectors with wires that have floated to the top of the sealant will not be accepted.

• To create a uniform magnetic field in the detection zone, wind adjacent loops in opposite directions.

• Use polyester compound as the sealant unless another type is allowed by the Engineer.

• Mix hardening agent into polyester resin with a power mixer or in an application machine designed for this type of sealant in accordance with the manufacturer’s instructions.

• Apply the loop sealant in accordance with the manufacturer’s instructions and the typical installation sheet. Do not apply sealant when pavement temperature is outside the manufacturers’ recommended application range.

• Solder splice the loop wires to the lead-in cable and install water resistant connector as shown on the typical installation sheet.

• Test the loop circuit resistance, inductance, and amplifier power-interruption as shown on the typical installation sheet. Document all test results.

3. Damaged, Patched, or Excessively Worn Pavement

• Where the existing pavement is damaged, patched or excessively worn and is found to be not suitable for reliable loop detection, notify the Engineer.

• When directed by the Engineer, remove and replace an area of pavement to allow the proper installation of the loop.

• Remove a minimum of 3 inches (75mm) depth.

• Comply with the applicable construction methods of Section 2.02 Roadway Excavation, Formation of Embankment and Disposal of Surplus Material, and Section 4.06 Bituminous Concrete, such as:

o Cut Bituminous Concrete o Material for Tack Coat

ITEM #1111401A, 1111451A

o Bituminous Concrete Class 1

4. Re-surface/Overlay Project

• Prior to disconnecting the existing loop confirm that the amplifier is operating properly and is programmed according to plan. Document loop operation. Report any discrepancies and malfunctions to Engineer.

• Remove all abandoned sawcut home-run wire from handhole.

• Sawcut new loop according to plan.

• Solder splice new loop wires to the existing lead-in cable and install new water-resistant twist connectors as shown on the typical installation sheet. Do not re-use the removed connectors.

• Test the loop circuit resistance and inductance. Document results.

• Ensure the existing loop amplifier has re-tuned to the new loop and is operating according to plan.

11.11.04 – Method of Measurement:

1. Loop Vehicle Detector is measured by the number of installed, operating, tested, and accepted vehicle detector amplifiers of the type specified.

2. Loop Detector Sawcut is measured by the number of linear feet (meters) of installed, tested, operating, and accepted sawcut only where there is loop wire. Over-cuts at corners that do not contain wire are not measured.

11.11.05 – Basis of Payment:

1. Loop Vehicle Detector and Sawcut is paid at the contract unit price per linear foot (meter). The price includes the detector, sawcut, loop wire, sealant, liquidtight flexible nonmetallic conduit, duct seal, water resistant splice connectors, testing, incidental material, equipment, and labor.

Pay Item Pay Unit Loop Vehicle Detector and Sawcut l.f. (m)

Rev. Date 09/21/16

ITEM #1111420A

ITEM #1111420A – PIEZO CABLE SENSOR (TYPE 1)

DESCRIPTION: Work under this item shall consist of furnishing and installing a piezo sensor of the type specified, all lead-in cable from the sensor to the traffic control cabinet, and all saw cut needed to install the piezo sensor and piezo sensor cable, where specified on the plans or directed by the Engineer.

MATERIALS: All materials must be compatible with the “Diamond Phoenix” Traffic Recorder and “Peek ADR” Traffic Recorder.

The piezo sensors shall operate within specification in both asphalt and portland cement concrete pavements, constructed on all commonly encountered sub-base materials and soil. The system is required to operate in through traffic lanes of interstate and principal highways covering the full range of traffic volumes and truck percentages to be found in the United States. The system shall function within specification over the temperature range -40 °F to 160 °F.

Piezo cable sensor type 1 shall be a Class I sensor approximately 11'6" in length with an output uniformity less than +7%. Sensor shall consist of a 16 gauge, flat, braided, silver plated, copper wire, a highly compressed piezoelectric copolymer, and a 0.016" thick brass outer sheath conforming to CDA-260 and ASTM B587-88. Sensor shall be approximately 0.260" wide x 0.063" thick and have a linear capacitance of 1.1 nF/ft, +20%. Insulation resistance shall be greater than 500 megohm, and piezoelectric coefficient shall be greater than or equal to 20 pC/N.

Each sensor shall be supplied with enough sensor cable to go from the piezo sensor to the cabinet unspliced. Sensor cable shall be RG 58 C/U type with a high density polyethylene outer jacket rated for direct burial and a nominal capacitance of 27 pF/ft.

Epoxy for piezo sensor installation shall be one of the following:

ECM P5G

IRD AS-475

IRD-Pat America PU200

Polyester resin compound for sealing sensor cable saw cut shall be:

• Two part polyester which to cure, requires a liquid hardener.

• Use of a respirator not necessary when applied in an open air environment.

• Cure time dependent on amount of hardener mixed.

• Flow characteristics to guarantee encapsulation of sensor cables.

• Viscosity: 4000 CPS to 7000 CPS at 77 degrees Fahrenheit.

• Form a tack-free skin within 25 minutes and full-cure within 60 minutes at 77 degrees

Fahrenheit.

• When cured, resist effects of weather, vehicular abrasion, motor oil, gasoline, antifreeze, brake fluid, de-icing chemicals, salt, acid, hydrocarbons, and normal roadway encounters.

• When cured, maintain physical characteristics throughout the ambient temperature ranges experienced within the State of Connecticut.

• When cured, bonds (adheres) to all types of road surfaces.

• Weight per Gallon: 11 lbs ±1 lb

• Show no visible signs of shrinkage after curing.

• 12 month shelf life of unopened containers when stored under manufacturers specified conditions.

• Cured testing requirements:

• Gel time at 77 degrees F: 15 – 20 minutes, ASTM C881, D-2471

• Shore D Hardness at 24 hours: 55-78, ASTM D-2240

• Tensile Strength: > 1000 psi, ASTM D-638

• Elongation: 18 – 20 %, ASTM D-638

• Adhesion to steel: 700 – 900 psi, ASTM D-3163

• Absorption of water, sodium chloride, oil, and gasoline: < 0.2%, ASTM D-570

• Include in the Certificate of Compliance:

• Manufacturer’s confirmation of the uncured and cured physical properties stated above.

• Material Safety Data Sheet (MSDS) stating sealant may be applied without a respirator in an open air environment.

• Designed to allow clean-up without the use of solvent that is harmful to the workers and the environment.

CONSTRUCTION METHODS: The Contractor performing the work shall have had previous experience installing piezo sensors. Experience shall be understood to mean the foreman/crew leader having installed piezo sensors of the type specified. Contractors not meeting the experience requirements shall receive training from the sensor manufacturer, or have a manufacturer’s representative present for training and supervision during installation of the sensors at the first site. Documentation of experience or training shall be submitted to the Engineer for approval 30 days prior to the start of work.

The Contractor shall follow the manufacturer’s recommended installation procedure. The Contractor shall submit installation procedure along with catalog cuts for approval. Outlined below is a sample of an acceptable installation procedure.

Work shall be organized so that roadway closings are kept at a minimum and as specified in Maintenance and Protection of Traffic.

Using the location shown on the plans and details, carefully mark out the piezo sensor slot perpendicular to the flow of traffic and the cable run on the roadway using crayons and pavement paint.

Cut the sensor slot ¾" wide (+1/16") and 1" minimum deep and approximately 6" longer than the sensor length (including lead attachment) using a ¾" wide diamond blade or blades ganged together to get a single ¾" wide cut. Drop blade an extra ½" down on both ends. The slot shall be wet cut to minimize damage to the road.

Cut the sensor cable home run slot ¼" minimum wide and 1¾" – 2" deep. The slot shall be wet cut to minimize damage to the road. Cable lead-out shall be centered on the piezo sensor slot.

Chisel out any material in the center between the two sensor saw cuts.

Power wash and sweep all slots. All slots and the pavement 5" on all sides must be very clean.

Dry all slots with compressed air. All slots and the pavement 1' on all sides must be completely dry.

Place a strip of duct tape along the pavement 1/8" from both sides of the slot for the full length of the slot.

Remove the sensor from the container, check for damage, visually inspect the sensor to ensure it is straight without any twists and curls and verify that the sensor cable is of sufficient length to reach the cabinet without splicing.

Test the sensor for capacitance, dissipation factor and resistance according to the manufacturer’s directions. Capacitance and dissipation factor shall be within +20% of the enclosed data sheet.

Resistance shall be greater than 20 megohm. Test results, serial number and location of sensor shall be recorded on data sheet and a copy left in the cabinet.

Lay the sensor on the tape next to the slot. Ensure that the sensor is straight and flat. From this point on, handle the sensor with latex gloves.

Clean the sensor with steel wool or emery pad and wipe down with alcohol and lint-free cloth.

Place the installation brackets on the sensor every 6" for the length of the sensor.

Bend the end of the sensor downward at a 30 degree angle. Bend the lead attachment end down at a 15 degree angle and then 15 degrees back up until level, forming a lazy Z.

Place the sensor in the slot with the top of the brass element 3/8" below the road surface, and the top of the brackets 1/8" below the road surface. The end of the sensor shall be at least 2" from the end of the slot, and the tip shall not touch the bottom of the slot. The lead attachment shall also not touch the bottom or sides of the slot. The brackets shall fit snugly against the sides of the slot.

Visually inspect the length of the sensor to ensure it is level and at uniform depth.

Route the piezo sensor cable through the home run slot. The sensor cable shall be protected by a PVC sleeve where it crosses a joint in or adjacent to pavement. Place backer rod under and over the sensor cable inside the slot 3" from the lead attachment to prevent the epoxy from running out into the home run slot.

Premix the epoxy for 2 minutes or until smooth using a low speed mixing drill (450 rpm) and a mixing paddle. Add the hardener to the epoxy and mix according to the manufacturer’s instructions. Ensure the mixing paddle is not lifted out of the epoxy while the mixing head is spinning, which could trap excessive air in the material.

Immediately pour the epoxy into the slot using a small bead to facilitate the flow of the epoxy under the sensor, eliminating air pockets. Start at the end of the sensor and pour towards the lead attachment utilizing several passes to completely fill the slot full of epoxy.

Using a trowel or putty knife, lightly spread the epoxy smooth along the length of the slot, ensuring the epoxy does not have a trough on top. The epoxy should be slightly higher than the tape as the epoxy will shrink while curing.

Remove the tape on the sides of the sensor as soon as the epoxy begins to set.

Remove the backer rod from the slot and fill the home run slot with polyester compound.

Polyester compound shall fully encapsulate the sensor cable, be flush with the road surface and provide a minimum cover of 1" between the top of the sensor cable and road surface.

Grind the top of the epoxy flat and even with the road surface using an angle grinder after the epoxy is fully cured.

Clean up the site. When the epoxy is fully cured, it may be opened to traffic. Time of cure should be specified by manufacturer and is dependent on the temperature. Failure to wait for the epoxy to fully cure may ruin the installation and cause it to fail prematurely.

After installation, the piezo sensor shall be tested a second time for capacitance, dissipation factor and resistance. In addition, the sensor shall be tested for voltage output using an oscilloscope by measuring the signal generated by vehicles of various size and weight driving over the sensor and applying an external pressure. An acceptable installation shall consist of the sensor having a capacitance and dissipation within +20% of the enclosed data sheet, a resistance greater than 20 megohm and a minimum voltage output of 100 mV for a light car. Test results shall be recorded on the enclosed data sheet and a copy left in the cabinet.

METHOD OF MEASUREMENT: Piezo sensors shall be measured for payment by the number of piezo sensors of the type specified, complete, operational, and accepted in place.

BASIS OF PAYMENT: This work will be paid for at the contract unit price each for “Piezo Cable Sensor (Type 1)” which price shall include the sensor, sensor cable, installation brackets, saw cut, epoxy, polyester compound, liquidtight flexible nonmetallic conduit, PVC sleeves, spade lugs, all materials, labor, tools, necessary fittings, required training and supervision by piezo manufacturer, testing, equipment, and work incidental thereto.

Rev 11-2018

ITEM #1105001A, 1105003A, 1105006A, 1105007A,

1105011A, 1105014A, 1105015A, 1105101A, 1105103A, 1105107A, 1105180A, 1105203A, 1105303A, 1105490A

ITEM #1105001A - 1 WAY, 1 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105003A - 1 WAY, 3 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105006A - 2 WAY, 1 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105007A - 2 WAY, 3 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105011A - 3 WAY, 3 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105014A - 4 WAY, 1 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105015A - 4 WAY, 3 SECTION SPAN WIRE TRAFFIC SIGNAL

ITEM #1105101A - 1 WAY, 1 SECTION MAST ARM TRAFFIC SIGNAL

ITEM #1105103A - 1 WAY, 3 SECTION MAST ARM TRAFFIC SIGNAL

ITEM #1105107A - 2 WAY, 3 SECTION MAST ARM TRAFFIC SIGNAL

ITEM #1105180A - 1 WAY, 1 SECTION BI-COLORED ARROW

ITEM #1105203A - 1 WAY, 3 SECTION POLE MOUNTED TRAFFIC

SIGNAL

ITEM #1105303A - 1 WAY, 3 SECTION PEDESTAL MOUNTED

TRAFFIC SIGNAL

ITEM #1105490A – 1 WAY, 1 SECTION TRAFFIC SIGNAL SIGN

MOUNTED

Article 11.05.03 – Construction Methods:

In the second paragraph, delete the last sentence (“A balance adjuster shall…”).

Add the following paragraphs:

Circular indications that have an identification mark (such as an arrow) on the top of the lens shall be installed with that mark at the 12 o-clock position.

Article 11.05.05 – Basis of Payment:

1105107A, 1105180A, 1105203A, 1105303A, 1105490A

In the first sentence of the first paragraph, delete “balance adjuster,”.

Form 817 -Article M.16.06 - Traffic Signals

Sub Article 3 - Housing:

In the last sentence, between the words “housing” and “shall” add “and all internal hardware”.

Add the following after the last paragraph.

Each section of the housing shall be provided with a removable visor. The visor shall be the cap type, unless otherwise noted on the plan. The visor shall be a minimum .05 inch (.13

mm) thick. The visor shall be the twist on type and secured to the signal by four equidistant flat tabs screwed to the signal head.

Sub Article 4 - Brackets:

Add the following at the end of the last paragraph:

Backplates shall be 5” wide and louvered.

Install a 3” wide yellow retroreflective strip (Type IX sheeting) along the perimeter of the face of the backplate.

Replace the last paragraph with the following:

When indicated on the plans, a backplate of dimensions, as shown on the plans, constructed of 5052-H32 aluminum alloy sheet between 0.050-in to 0.065-in thickness meeting the requirements of ASTM B209 shall be attached to the signal head housing. The backplate shall be painted a flat black on both sides.

Delete Sub Article 5 - Optical Unit and Sub Article 6 – Lamp Socket and replace with the following:

Optical Unit, Light Emitting Diode:

(a) General:

Only Optical Units that meet the requirements contained herein supplied by the below manufacturers that have been tested by the Department’s Signal Lab will be accepted. Final approval for model numbers will be done at the time of the catalog cut submittals.

1105107A, 1105180A, 1105203A, 1105303A, 1105490A

Duralight GE Lighting Solutions Trastar, Inc. Corporate Headquarters 860 N. Dorothy Dr., Suite 600 1975 Noble Road Building 338E Richardson, TX 75081 East Cleveland, OH 44112-6300

Dialight Leotek 1501 Foute 34 South 726 South Hillview Drive Farmingdale, NJ 07727 Milpitas, CA 95035

The materials for Light Emitting Diode (LED), Optical Unit, circular and arrow, shall conform to the following:

• The ITE Performance Specification for Vehicle Traffic Control Signal Heads – Light Emitting Diode (LED) Circular Signal Supplement for circular indications dated June 27, 2005.

• The ITE Performance Specification for Vehicle Traffic Control Signal Heads – Light Emitting Diode (LED) Vehicle Arrow Traffic Signal Supplement for arrow indications dated July 1, 2007.

Section 4, Adjustable Traffic Signals and General Housing sections of the Department of Transportation Functional Specifications for Traffic Control Equipment, current edition governs. Where the Department of Transportation Functional Specifications conflict with this Special Provision or the 2005/2007 ITE Performance Specifications, this Special Provision and the 2005/2007 ITE Performance Specifications shall govern.

The Optical Unit shall have an Incandescent look and be made up of a smooth surfaced outer shell, multiple LED light sources, a filtered power supply and a back cover, assembled into a sealed unit.

The Optical Unit shall be certified as meeting the 2005/2007 ITE Specifications by Intertek Testing Services, Inc. (ITSNA, formerly ETL) or another organization currently recognized by the Occupational Safety and Health Administration (OSHA) as a Nationally Recognized Testing Laboratory (NRTL.) The Optical Unit shall perform to the requirements of the ITE Specification for a minimum of 60 months.

A “Swing Test” will be performed by the Department to ensure no significant dimming or blanking occurs, until the lamp is obscured by the visor. All L.E.D Lamps will be subjected to further field testing for reliable operation.

The Arrow Optical Unit shall be “Omni-Directional” so that it may be oriented in a right, left or straight configuration without degradation of performance.

(b) Electrical Requirement:

1105107A, 1105180A, 1105203A, 1105303A, 1105490A

Operating voltage:

80 to 135 Volts AC with cutoff voltage (no visible indication) below 35Volts AC.

Power requirements:

Circular Indications: 12”, (300 mm) – no more than 16 Watts Circular Indications: 8”, (200mm) - no more than 16 Watts Arrows Indications: 12”, (300mm) - no more than 16 Watts

Power Supply:

Fused and filtered to provide excess current protection and over voltage protection from electrical surges and transient voltages.

(c) Photometric Requirement:

Beam Color:

Meet 2005/2007 ITE Specifications

(d) Mechanical Requirements:

Diameter:

The Circular Optical Unit shall fit into standard 12” (300mm) or 8” (200mm) housing.

The Arrow Optical Unit shall fit 12” (300mm) housings only.

Enclosure:

UV (Ultraviolet) stabilized polycarbonate back cover.

Clear lens cover for all Red, Yellow and Green Circular Optical Units.

For Arrow Optical Units the arrow indication segment of the lens shall be clear.

Enclosure sealed and waterproofed to eliminate dirt contamination and be suitable for installation in all weather conditions.

Clearly mark on the housing the following information:

• Manufacturer & model number

• Date of manufacture (must be within one year of installation)

The model number shall end with the number of LEDs used to comprise the unit as the last digits of the model number. Example, if the unit comprised of 3 LEDs and the model is x12y, then the new model number shall read x12y3.

Operating temperature:

Meet 2005/2007 ITE Specification Wiring: L.E.D. lamps shall have color coded 16 AWG wires for identification of heads as follows:

RED L.E.D. Lamps RED with WHITE neutral

YELLOW L.E.D. Lamps YELLOW with WHITE neutral

GREEN L.E.D. Lamps GREEN or Brown with WHITE neutral

1105107A, 1105180A, 1105203A, 1105303A, 1105490A

RED L.E.D. ARROWS RED/WHITE with WHITE neutral

YELLOW L.E.D. ARROWS YELLOW/WHITE with WHITE neutral

GREEN L.E.D. ARROWS GREEN/WHITE or BROWN/WHITE with WHITE neutral

GREEN/YELLOW LE.D ARROWS GREEN/WHITE or BROWN/WHITE, YELLOW/WHITE, with WHITE neutral

Wires shall be terminated with a Block Spade, 6-8 stud/ 16-14 wire size.

All Circular Optical Units shall be supplied with a minimum 40” pigtail and all Arrow Optical Units Supplied with a minimum 60” pigtail.

Sub Article 9 - Painting:

Third coat:

Replace with the following:

The housing and all brackets and hardware shall be painted black by the manufacturer. The color shall be No. 17038, Federal Standard No. 595.

At intersections at Merritt Parkway interchanges, the housing and all brackets and hardware shall be painted dark green by the manufacturer. The color shall be No.

14056, Federal Standard No. 595.

The inside of the visors shall be flat black and shall meet Federal Specification

TT-E-527.

The housing door and the outside of the visor shall be flat Black No. 37038, Federal Standard No. 595.

OR

7 CONDUCTOR

W/ PUSHBUTTON

WALK SIGNAL

7 CONDUCTOR

W/ PUSHBUTTON

WALK SIGNAL

& CABLE USED

SIGNAL ASSEMBLY

PEDESTRIAN SIGNAL CABLE COLOR ASSIGNMENTS

SPARE CONDUCTOR *

SPARE CONDUCTOR

NEUTRAL FOR PUSHBUTTON

PEDESTRIAN PUSHBUTTON

NEUTRAL FOR WALK SIGNAL

WALK

DON'T WALK

SIGNAL FUNCTION WIRE COLOR

RED

GREEN

WHITE

BLACK

ORANGE

WHITE \ BLACK

BLUE \ BLACK

RED

ORANGE

GREEN

WHITE

BLACKPEDESTRIAN PUSHBUTTON

NEUTRAL FOR TRAFFIC SIGNAL

GREEN

YELLOW

RED

NEUTRAL FOR PUSHBUTTON

SPARE CONDUCTOR * BLUE \ BLACK

WHITE \ BLACK

TRAFFIC SIGNAL CABLE COLOR ASSIGNMENTS

SIGNAL ASSEMBLY

& CABLE USED

2 - WAY

9 CONDUCTOR

3 - WAY

12 CONDUCTOR

4 - WAY

15 CONDUCTOR

NEUTRAL

SPARE

GREEN

YELLOW

RED

NEUTRAL

SPARE

GREEN

YELLOW

RED

NEUTRAL

SPARE

GREEN

YELLOW

RED

FUNCTION

SIGNAL

ARTERY 1

RED

ORANGE

GREEN

WHITE

RED

ORANGE

GREEN

WHITE

RED

ORANGE

GREEN

WHITE

ARTERY 2

RED \ BLACK

ORANGE \ BLACK

GREEN \ BLACK

BLACK \ WHITE

RED \ BLACK

ORANGE \ BLACK

GREEN \ BLACK

SIDE STREET 1

BLACK

WHITE \ BLACK

BLUE

RED \ BLACK

BLACK

WHITE \ BLACK

BLUE

BLACK

WHITE \ BLACK

BLUE

BLUE \ WHITE

GREEN \ WHITE

BLACK \ WHITE

RED \ WHITE

SIDE STREET 2

PROPOSED WOOD SPAN POLE PROPOSED UTILITY POLE

XX

X

XX XX

X X XX

XX

CABLE CLOSURE

EXISTING WOOD SPAN POLE

PROPOSED STEEL SPAN POLE

EXISTING STEEL SPAN POLE

EXISTING UTILITY POLE

POLE ANCHOR & GUY

SPAN MOUNTED SIGN

SPAN MOUNTED TRAFFIC SIGNAL

DIRECT ASSEMBLY DETAIL

GREEN\BLACK

BLUE\BLACK

BLUE\BLACK

FOR 2 WAY DOGHOUSE

BOTTOM "T" BRACKET

BRACKET

BOTTOM

3 WAY

A

M

K

JS

N

J

R

P

V V

U

K

N

J T

L

L

L

J

K

M

N

P

R

S

T

U

V

A

ITEM DESCRIPTION, FOR ASSEMBLY DETAILS

1 - SERRATED TABBED LOCKRING, ALUMINUM (TAB

MUST BE FULL WIDTH OF RING)

2 - GASKET, NEOPRENE

3 - WASHER, STEEL

4 - HEX NUT, STEEL

5 - CONDUIT LOCKNUT, STEEL

6 - BUSHING PLASTIC (ONLY IN JUNCTION BOX OR

NIPPLED DOWN TRAFFIC SIGNAL)

7 - OCTAGONAL CAP, ALUMINIUM

8 - SPAN WIRE CLAMP

10 - NIPPLE, STEEL

11 - HEX NUT, STEEL, NOTCHED W/SETSCREWS

NOTES: FOR ASSEMBLY DETAILS

APPLY SILICONE CAULK BETWEEN OR AROUND SERRATED LOCKRING AND HOUSING.

OPTIONAL USE IF NIPPLE THREADS TOO FAR INTO ELBOW.

DRILL HOLE IN CENTER OF 2 WAY BOTTOM BRACKET - INSTALL 3 BOLT

BRACKET (SEE DETAIL).

DO NOT INSERT ORNAMENTAL CAP PAST DOTTED LINE.

ALL THREAD.

SETSCREW (SQUARE OR ALLEN) ON ALL FITTINGS.

CHASE NIPPLE CAN BE SUBSTITUTED FOR THE COMBINATION OF ITEMS 6, 5 AND 10.

INSTALL STAINLESS STEEL WASHER ON INSIDE OF COTTER PIN. COTTER PIN AND

WASHER SHALL BE ON SIDE OF HANGER AWAY FROM SIGNAL CABLES.

CHASE NIPPLE CAN BE SUBSTITUTED FOR COMBINATION 4, 5, 10 AND 11.

DOOR HINGE ON OUTSIDE OF SIDE BY SIDE ASSEMBLY.

3 WAY DOGHOUSE

BOTTOM BRACKET FOR

USE BLUE WITH BLACK TRACER FOR THE ADDITIONAL BUTTON.

* IF 14/7 FEEDS MORE THAN ONE BUTTON, SPLIT THE BUTTONS AND

ASSEMBLY DETAIL

SPAN WIRE HANGER

SPAN WIRE SUSPENDED

TRAFFIC SIGNALS

ASSEMBLY DETAIL

& FOUR WAY NIPPLE DOWN

TWO WAY, THREE WAY

SUPPORT DETAIL

UPPER CENTER

PLAN VIEW

CONDUIT CLAMP DETAIL

BRACKET ASSEMBLY

3 BOLT

4" (100)

SAG

16•" (413)

DETAIL

TUNNEL VISOR

DETAIL

VISOR ATTACHMENT

MAX

(1800)

6'

NOTES:

SERVICE CONDUCTORS: THW, THWN OR XHHW. INDIVIDUAL WIRES MAY BE USED IN

LIEU OF MULTI-CONDUCTOR CABLE.

NESC RULES.

ATTACH SPAN AT LEAST 12" (300) BELOW LOWEST POWER COMPANY ATTACHMENT, AND

OTHERWISE DIRECTED ON PLANS.

ELBOW OR "T" FITTING MUST HAVE NOTCH FOR SERRATED TABBED LOCKRING.

TOP BRACKET CENTER HUB SHALL BE MIN 4" (100) ROUND AND 3" (75) DEEP OR EQUAL

VOLUME. SERRATION CAST IN HUB OR TABBED OR SERRATED LOCKRING, TOP

OPENING NOT THREADED.

NIPPLE LENGTH DEPENDS ON SPAN HEIGHT.

SAG OF SPAN TO BE 5%| LENGTH, UNLESS OTHERWISE ALLOWED BY ENGINEER.

INSTALL EXTENSION NIPPLE ON TOP OF SIGNAL HOUSING SO BOTTOM OF ALL SIGNALS

ARE EVEN.

SECURE LOUVERS TO TUNNEL VISORS WITH 3 STAINLESS STEEL SCREWS.

(4800 - 5400)

16' - 18'

CENTER HUB SAME AS EXCEPT TOP OPENING MAY BE THREADED.

ROADWAY SURFACE

BACKPLATE (AS REQ'D)

STEEL SPAN POLE

STRAND VISE

GALVANIZED HEAVY DUTY POLE CLAMP

W/2 STAINLESS STEEL BANDS

RIGID SERVICE CLEVISCABLE CLOSURE

(TYP.)

(AS REQUIRED)

AND LOUVERS

TUNNEL VISORS

(TYP.)

DOOR HINGE

AT LEAST 40" (1000) ABOVE HIGHEST COMMUNICATIONS ATTACHMENT, UNLESS

DIMENSIONS ARE IN ENGLISH ('.")

& METRIC UNITS (mm).

- UNDER 1" TO NEAREST 1 mm.

- OVER 1" TO NEAREST 5 mm

METRIC DIMENSIONS ARE ROUNDED:

REV. DATE REVISION DESCRIPTION Plotted Date:

OF WORK WHICH WILL BE REQUIRED.

THE CONDITIONS OF ACTUAL QUANTITIES

IN NO WAY WARRANTED TO INDICATE

INVESTIGATIONS BY THE STATE AND IS

SHEETS IS BASED ON LIMITED

QUANTITIES OF WORK, SHOWN ON THESE

THE INFORMATION, INCLUDING ESTIMATED

5/22/2018

NOT TO SCALE

DEPARTMENT OF TRANSPORTATION

STATE OF CONNECTICUT

CTDOT_TRAFFIC_STD_2018-05-21.dgnFilename: Model:

TR-1105_01

NAME/DATE/TIME:

C

ONNECTICU

T

D E

P A

R T

M E

N T

O F TRAN

S

P O

R T

A T I

O N

STANDARD SHEET TITLE: STANDARD SHEET NO.:

OFFICE OF ENGINEERING

4-2012 MINOR REVISIONS.

TR-1105_01

TRAFFIC SIGNALS

& CABLE ASSIGNMENTS

18"| (450|) (TYP)

WHEN SHOWN ON PLANS

STANDARDS. MINIMUM 3.

LOWEST STAND-OFF NOT

LOWER THAN 7' (2100)

ABOVE GROUND

INSTALL STAND-OFFS IN

9 - WIRE OUTLET BODY, IRON, FEMALE ONLY

ALL WORK ON UTILITY POLES MUST COMPLY WITH CURRENT PURA REGULATIONS AND

4. REFER TO STANDARD SHEET TR-1113_01 FOR CABLE CLOSURE - TYPE A.

BYPASS CABLE CLOSURE.

3. CABLES THAT FEED PEDESTRIAN INDICATIONS, PUSH BUTTONS, AND DETECTORS

CONDUCTORS IN 21 CONDUCTOR CABLE, EVEN IF INDICATIONS ARE IDENTICAL.

2. WIRE ALL SIGNALS, SAME DIRECTION FROM CONTROLLER, SEPARATELY WITH

ON NEUTRAL CONDUCTORS.

CABLE CLOSURE. JUMPERS BETWEEN TERMINALS ARE NOT ALLOWED EXCEPT

ASSEMBLY. WIRE EACH TRAFFIC SIGNAL SECTION SEPARATELY BACK TO

1. INSTALL SEPARATE CABLE BETWEEN CLOSURE AND EACH TRAFFIC SIGNAL

TABLE NOTES:

5-2013 MINOR REVISIONS.

3-2015

DRIP LOOPS AND CABLE AS SHOWN

CABLE RINGS SUPPORTING ALL

B C

D

E

F

G H

B

C

D

E

F

G

H

C

ACCORDANCE WITH PURA

WOOD UTILITY POLE

(TYP.)

DRIP LOOP

No. 6 AWG COPPER GROUND WIRE (BARE)

REMOVED STRAIN INSULATOR.

MINIMUM 3, EQUALLY SPACED

2 HOLE CONDUIT STRAP,

(SEE SHEET TR-1114_01)

BASE WITH WITH A GROUND ROD

STAPLED TO POLE AND GROUNDED AT THE

No. 6 AWG COPPER GROUND WIRE (BARE)

4 1-2018

FACE ALL ENTRANCE FITTINGS TOWARD CABLE CLOSURE.

MAXIMUM SIGN SIZE 36" X 36" (900 X 900). ALL STAINLESS STEEL HARDWARE.

AND TO TR-1114_01 FOR SIGN HANGER ASSEMBLY.

REFER TO TR-GS_01 "SIGN FACE SHEET ALUMINUM, R-SERIES SIGNS TYPICAL DETAILS",

TIE WRAPS (TYP)

6" MIN.

REVISED GROUNDING NOTE FOR SPAN AND OTHER MINOR REVISIONS.

SEE VISOR ATTACHMENT DETAIL

Rev. Date 10-23-2018

ITEM #1107011A

ITEM #1107011A - ACCESSIBLE PEDESTRIAN SIGNAL AND

DETECTOR (TYPE A)

Description:

Furnish and install an Accessible Pedestrian Signal and Detector (APS&D). The APS&D provides audio and tactile information to augment the visual pedestrian signal.

Type A provides a low frequency percussive tone during the walk interval and is used where there is an exclusive pedestrian phase or ≥ 10 foot separation between APS&Ds.

Material:

A. General:

• Conform to applicable sections of the current MUTCD Chapter 4E, Pedestrian Control Features as specified herein.

• All features fully operational when the traffic signal is in colors mode.

• All features non-operational when the traffic signal is in flash mode.

• Interchangeable with a non-accessible type pedestrian pushbutton with no modifications to the Controller Assembly (CA) or Controller Unit.

• Audible transducer integral with the APS&D housing, adjacent to the pushbutton.

• Operation programming method: Either or combination of:

o Mechanically by dip switches or circuit board jumpers o Infrared remote-control hand-held device

B. Electrical:

• Metallic components either grounded or insulated to preclude an electrical hazard to pedestrians under all weather conditions.

• All features powered by the 110VAC Walk signal and the 110VAC Don’t Walk signal so that additional conductors from the CA are not needed.

C. Audible Pushbutton Locator Tone

• Frequency: repeating tone at one (1) second intervals

• Tone duration: ≤ 0.15 seconds

• Volume:

o Minimum setting of zero o Manually adjustable initial setting o Automatically adjusted after initial setting. Volume increased in response to a temporary increase in ambient noise and subsequently decreased with a decrease in ambient noise.

o Maximum volume: 100 dBA which is the approximate sound pressure of a gasoline powered lawn mower nearby.

o Automatic volume adjustment independent of other APS&Ds at the intersection.

o May be disabled without affecting operation of other features.

• Silent only during walk interval. Active all other times.

D. Vibrotactile Arrow Pushbutton

• Pushbutton contained in a circular assembly which fits inside the housing and is attached to the housing with 4 screws.

• Actuation of pushbutton acknowledged by confirmation light.

• Actuation of pushbutton initiates speech message “Wait”.

• ADA compliant: Size: ≥ 2.0” (50) diameter, Actuation force: ≤ 5 ft-lb (22.2 N)

ITEM #1107011A

• Shape: Circular, raised slightly above housing so that it may be actuated with the back of a hand

• Tamper-proof, vandal-proof, weatherproof, freeze-proof, impact-resistant design and construction.

• Operation: Vibrates only during the walk interval (when the walk indication is displayed).

• Tactile Arrow:

o Attached to surface of the button assembly by a tamperproof method.

o Raised slightly above surface of pushbutton, minimum 0.125” (0.3) o Size: Length ≥ 1.5” (38), Height ≥ 1.0” (25) o Color: Sharp contrast to background color of pushbutton and housing

E. Audible Walk Interval

1. General:

• Operation independent of other APS&Ds at intersection.

• Active only during the walk interval (when the walk indication is displayed).

• Volume:

o Minimum setting of zero o Manually adjustable initial setting o Automatically adjusted after initial setting. Volume increased in response to a temporary increase in ambient noise and subsequently decreased with a decrease in ambient noise.

o Automatic volume adjustment independent of other APS&Ds at the intersection.

o Maximum volume: 100 dBA which is the approximate sound pressure of a gasoline powered lawn mower nearby.

• Duration:

o Default method: Automatically set by the duration of the visual walk signal display.

o When selected: Manually set when rest-in-walk is used for a concurrent pedestrian movement.

• Audible sounds that mimic any bird call are not allowed.

2. Type A, Percussive Tone:

• Repeating tone at eight (8) to ten (10) ticks per second.

• Tone frequency: Multiple frequencies with a dominant component at 880 Hz which creates a “tick - tick - tick…” sound.

F. Pushbutton Housing/Sign Frame/Sign

• One piece die cast aluminum meeting requirements of ASTM B85.

• Sign frame designed to accept 9" x 15" (230 x 380) four-hole advisory sign.

• Flat back to facilitate surface mount.

• Available brackets to either pedestal top-mount or pole side-mount on pole diameter range of 3½" (89) to 15" (380).

• Available brackets to allow mounting two (2) APS&Ds to the same 3½” (89) pole, facing ≥

60 degrees apart, at the same height.

• Available extension bracket of a size indicated on the plan – 18” maximum.

• Wire entrance through the rear.

• Stainless steel mounting hardware.

• Color: The color shall be black No. 17038, Federal Standard No. 595. At intersections at

Merritt Parkway interchanges, all brackets and hardware shall be painted dark green by the manufacturer. The color shall be No. 14056, Federal Standard No. 595.

• Finish: Housing/Frame and all mounting brackets either:

1. Painted with 3 coats of infrared oven-baked paint before assembly.

ITEM #1107011A

o Primer: Baked iron oxide which meets or exceeds FS TT-P-636.

o Second coat: Exterior-baking enamel, light gray, which meets or exceeds FS TT-E-527.

o Third coat: Exterior-baking enamel, which meets or exceeds FS TT-E-489.

2. Electrostatic powder coated after chemically cleaned.

• Sign: CT DOT Sign No. 31-0856

Construction Methods:

Install the APS&D according to the manufacturer’s instructions. Position the APS&D so the plane of the sign face is parallel to the crossing (sign is facing perpendicular) and the arrow is pointing in the same direction as the crossing, not necessarily at the ramp. Notify the Engineer if there is any discrepancy or ambiguity between the plans and field conditions that prevent placement of the APS&D as shown on the plan.