Township of Towamencin, PA Appendix 136D Traffic Signal Construction Specifications

[Amended 12-30-2009 by Ord. No. 09-10; 4-13-2022 by Ord. No. 22-03]

§ D100 General requirements.

A. The purpose of this specification is to provide design engineers and qualified traffic signal contractors with the general requirements and administrative details governing the furnishing and installation of traffic signals by private entities within Towamencin Township.

B. The owner or Township is hereby defined as Towamencin Township, Montgomery County, Pennsylvania.

C. The contractor is hereby defined as any qualified contractor or subcontractor performing traffic-signal-related work for a private entity in accordance with a PennDOT-approved traffic signal permit.

D. The requirements of the Pennsylvania Department of Transportation Specifications (year 2020 or latest revision/edition) also known as "PennDOT Publication 408," shall apply to all aspects of this installation.

E. The requirements of the Pennsylvania Department of Transportation Traffic Signal Design Handbook, also known as "PennDOT Publication 149, October 14, 2010," latest revision, shall apply to all aspects of this installation.

F. Special provisions for vendor-specific equipment and nonstandard PennDOT items have been included as part of this document. It is the responsibility of the contractor to contact the Township Traffic Engineer to determine which special provisions apply for a particular installation.

G. Whenever a reference is made to any standard, specification, or code, the reference shall mean the standard, specification, or code that is in effect on the date that the contractor notifies the Township Traffic Engineer that work is ready to proceed.

H. All traffic signal contractors working in the Township must be PennDOT prequalified to perform traffic signal work (Work Class Code "P"). All contractor personnel setting up work zone controls and performing flag duties must be IMSA Work Zone Safety certified. All personnel performing electrical work must be IMSA Traffic Signal Technician Level I certified as a minimum requirement. A supervisor must be on site during the installation of any electrical work and said supervisor must be IMSA Traffic Signal Technician Level II certified. Furnish the Township with a copy of said certificates.

I. It is the responsibility of the private entity installing the traffic signal to secure all necessary PennDOT highway occupancy permit and PennDOT traffic signal permit approvals before work begins.

§ D101 Contractor's work.

A. General. The contractor shall furnish all materials, implements, machinery, equipment, tools, supplies, transportation, labor, and supervision required to construct the facilities as shown on the Township-approved drawings and as specified herein. It shall be the responsibility of the contractor to proceed with the work in the manner and within such limitations as may be prescribed by the Township Traffic Engineer. It is the responsibility of the contractor to obtain a construction drawing from the design engineer which has been approved by the Township Traffic Engineer.

B. Construction limits. The contractor shall confine his operations strictly within the limits of the rights-of-way indicated by the plans, and/or as directed by the Township Traffic Engineer, unless written permission is obtained to occupy additional ground. Upon completion of work, the contractor shall clean up and restore the area of operations to a condition at least equal to original conditions. Unless specified elsewhere herein, all restoration shall be included in the contractor's scope of work. Damage to property outside of specified construction limits shall be the responsibility of the contractor and restoration of same shall be made at the contractor's expense.

C. Scope of work. The extent of work is as shown on the construction drawings and as contained within these specifications and includes but is not limited to installation of traffic signals; installation of pavement markings and traffic signs; maintenance and protection of traffic; and all necessary appurtenant work; and materials required to complete the work indicated. Any equipment to be removed/replaced shall be delivered to the Township Public Works Department by the contractor, if requested by the Township Traffic Engineer; otherwise the contractor is responsible for the disposal of all existing equipment being removed/replaced.

D. Utility notification. The contractor is responsible for notifying the Pennsylvania One-Call System in accordance with PA Act 287 of 1974.[1] It is also the contractor's responsibility to protect all utilities from damage during work that have been marked through the PA One-Call System. When a utility is damaged, the contractor must stop all work and notify the appropriate utility and the Township Traffic Engineer. The contractor shall be responsible for any damage caused to marked utilities and for any damage caused to unmarked utilities after the initial damage occurs.

[1] Editor's Note: See 73 P.S. § 176 et seq.

E. Maintenance and protection of traffic. Maintenance and protection of pedestrian and vehicular traffic shall be strictly observed by the contractor in completing the project work program, as follows:

(1) All workers must wear a reflective vest or other appropriate safety apparel during working hours.

(2) The contractor must provide vehicles outfitted with safety beacons, appropriate traffic control signing, barricades, flags and cones.

(3) All work must be done in compliance with the contract drawings and the appropriate figures contained within Publication 213, Temporary Traffic Control Guidelines, dated March 2021 or latest edition, published by the Pennsylvania Department of Transportation.

(4) Open trenches across travel lanes are not permitted during nonworking hours unless, on the approval of the Township Traffic Engineer, such trenches are safely decked with steel plates of sufficient size and strength to support the traffic load. The contractor's name and emergency telephone number shall be painted and legible on each plate to assist the Township in the event of an emergency.

(5) All travel lanes must be open for traffic during the morning (6:00 a.m. to 9:00 a.m.) and evening peak hours (3:00 p.m. to 7:00 p.m.). Two-way traffic must be maintained at all times. Lane closures are permitted for short periods if flagging is provided in accordance with PennDOT Publication 213.

(6) The contractor shall provide the Director of Public Works, and the Towamencin Township Police Department, with information 24 hours in advance pertaining to potential traffic restrictions.

(7) When the contractor is providing flag control of an intersection due to traffic signal power interruption and at such time immediately prior to signal turn on, the contractor shall notify the Towamencin Township Police Department.

F. Documentation. One hard copy and electronic copy of the following documentation must be provided for each installation before final acceptance of the installation occurs:

(1) As-built documentation of the work in a format satisfactory to the Township Traffic Engineer.

(2) Operator manuals containing detailed operating instructions for each different type or model of equipment.

(3) Brand name, model name/number, PennDOT approval number, serial number and warranty date (beginning and end) for all controller assembly equipment.

(4) Cabinet wiring diagrams including terminal number and conductor color codes.

(5) Pole manufacturer mast arm shop drawings and calculations.

(6) Signed traffic signal permit plan and traffic signal system permit plan issued by PennDOT and copies of the interconnect plan.

G. Guarantees. All materials and workmanship, including defects and damages resulting from such, shall be fully guaranteed by the contractor for a period of one year from the date of acceptance by the owner. The contractor shall promptly remedy any defects in work and pay for any damage to work resulting therefrom which shall appear within the one-year period. This guarantee may be superseded by specific equipment warranties which shall be the responsibility of the equipment supplier after the one-year period.

H. Inspection of traffic signal work.

(1) It shall be the responsibility of the contractor to arrange a preconstruction meeting on site with the Pennsylvania Department of Transportation (PennDOT) Traffic Unit, the Township Traffic Engineer and the Director of Public Works to spot signal poles and vehicle detector locations in the field. No work may begin until this meeting has been held and the intended scope of the signal installation is satisfactory to all parties.

(2) Once work has begun, the contractor shall be responsible for notifying the Township Traffic Engineer 24 hours prior to the following, so that a representative of the Township Traffic Engineer may be on site to inspect the following work:

(a) Installation of signal pole foundations before concrete is placed;

(b) Trenching and conduit installation before backfilling occurs.

(3) Location of vehicle and/or pedestrian detection zones and corresponding detectors are to be reviewed and approved by the equipment supplier prior to construction. The settings for the detection systems shall be field tested and adjusted at the Department's direction during final inspection.

(4) Work not inspected and/or completed to the satisfaction of the engineers shall be redone by the contractor at the direction of the Township Traffic Engineer.

I. Acceptance of traffic signal installation by Township.

(1) Thirty-day testing period. Upon substantial completion of the scope of work, a thirty-day testing period shall begin. The contractor shall hold a meeting with the PennDOT Traffic Unit, the Township Traffic Engineer, and the Director of Public Works to begin the thirty-day testing period. During this time period, the contractor must commence repairs for signal flash or blackout within two hours of notification by the Township. Also, the contractor must correct all failures by repairing or replacing malfunctioning parts or equipment or faulty workmanship, regardless of the cause, within 24 hours after having been notified by the Township. In addition, during this time period the contractor must guarantee the satisfactory in-service operation of mechanical and electrical equipment, related components, signing, pavement markings, and the controller assembly, regardless of the cause for unsatisfactory operation. After correcting failures for any reason, the thirty-day testing period shall be restarted.

(2) Final dedication.

(a) Final dedication of the work outlined within this scope of work shall be signified by the following:

[1] Satisfactory completion of the thirty-day testing period;

[2] Satisfactory completion of all outstanding construction items as outlined by the Engineer;

[3] Submission of all required documentation to the satisfaction of the Township Traffic Engineer.

(b) Until final dedication is granted to the contractor, the contractor is responsible for commencing repairs by repairing or replacing malfunctioning parts or equipment or faulty workmanship, regardless of the cause, within two hours after having been notified by the Township. If the contractor does not report on site within two hours, the Township shall have the option to commence repairs through the Township traffic signal maintenance contractor. The developer's escrow for the project shall then be billed accordingly for work performed by the Township traffic signal maintenance contractor. In addition, during this time period the contractor must guarantee the satisfactory in-service operation of mechanical and electrical equipment, related components, signing (if applicable), pavement markings (if applicable), and the controller assembly, regardless of the cause for unsatisfactory operation.

J. Central server system upgrade.

(1) As part of a signal installation or modification, the contractor is responsible for upgrading the central traffic control system on the unified command and control (UCC) computer at the Department's central office. The contractor will be responsible for ensuring that the new installation functions as part of the existing system to the satisfaction of the Township and the Department. The central server system upgrade must be completed by a technician from the approved supplier's office.

(2) Provide the work described herein for the unified command and control (UCC) computer at the Department's central office. Provide color intersection graphic for the signalized intersection and area map that accurately depicts the intersection lane configurations, detector locations, North arrow, roadway names, pavement markings, mast arms, and signal head locations showing real-time indications. Utilize satellite images except for intersections on new alignment. Provide area map showing main street green for all intersections. Ensure that additional equipment is installed in the controller assembly to perform the following functions:

(a) Alarms. Program alarms as directed by the Director of Public Works during system setup. At a minimum, include intersection flash, door open, communications failure, detector failures, UPS failure, and UPS activation.

(b) Detector logging.

[1] Program all local controllers and central system to log the data of all detectors during system setup. Field verify that detectors are labeled correctly in the controller cabinet and in the central system monitor.

[2] Program all local and master controllers for all system detectors to log during system setup. Designate lane group direction (NB left, NB through, NB right, etc.) in the detector report.

[3] Program the system software to provide a spreadsheet printout of detector data in user-friendly tabular format. Plot detector volume and/or occupancy against time periods of 15 minutes or greater.

(c) Event reporting.

[1] Program system to immediately report the following events, at a minimum:

[a] Traffic signal conflict flash.

[b] UPS system activation in the event of a power outage.

[c] Restoration of AC power after power outage.

[2] Program system to immediately report, via computer printout at central computer and visual cue on central computer screen, the following events:

[a] Door open to intersection controller cabinet.

[b] Detector failure (system and/or local).

[c] Communication failure, including:

[i] Channel online/offline.

[ii] Master transceiver failure.

[iii] Channel loop failure.

[iv] Local intersection controller telemetry failure.

[v] Channel disabled.

[3] Free operation.

(d) Communications.

[1] Obtain IP addresses from PennDOT Traffic Unit or central office.

[2] Halt system test if there is a failure in communications. Determining the communication problem is the responsibility of the contractor. Call for the PennDOT Traffic Unit fiber contact to be present while determining the communications problem. If the communications problem was the result of a device supplied by the contractor, restart the thirty-day system test entirely upon correction of communications.

(e) Security. Request user names and passwords from Towamencin Township and set up in system for secure user access.

(f) Malfunction management unit (MMU). Provide and set up software to communicate remotely with the IP addressable malfunction management units in each local cabinet. Software to obtain active status, time-stamped nonvolatile configuration changes, monitor resets, temperature, and true RMS voltages, event log records, alarm logs, data archival information, monitor resets, and temperature.

(3) Complete the system upgrades prior to beginning the thirty-day system test. Contact the Director of Public Works, the Township Traffic Engineer and PennDOT Traffic Unit one week prior to municipal computer installation to allow a representative from each to be present. Test system in accordance with Section 953.3(o). Provide one week's worth of volume data before beginning of thirty-day system test.

§ D102 Traffic control equipment items.

A. Description. This work consists of furnishing and installing the traffic control equipment indicated on the drawings, including controller cabinets; NEMA traffic signal controllers, electrical distribution system; vehicular signal heads; traffic signal supports; detection systems; junction boxes; signs; sign posts; pavement markings; and all necessary appurtenant work and materials necessary to complete the work indicated.

B. Materials.

(1) All materials shall be in accordance with the most recent edition/version of the Pennsylvania Department of Transportation (PennDOT) Publication 408, PennDOT Bulletin 15, and National Electrical Manufacturer's Association Standards Publication No. TS-2. All materials shall be supplied by PennDOT approved manufacturers. Towamencin Township, in order to minimize maintenance costs, has established a standard Material List (see Appendix A)[1] for use at all intersections within the Township.

[1] Editor's Note: Appendix A is included as an attachment to this chapter.

(2) Catalog cuts for all materials must be provided to the Township Traffic Engineer before construction begins. Include the type of material, manufacturer's name, model number and PennDOT certificate of approval number for each item to be supplied.

(3) The attention of all contractors is called upon regarding the mandatory use of metallic conduit under the following conditions:

(a) Installation on the exterior surface of traffic signal poles.

(b) Underground, when the conduit also extends above ground.

(4) If pavement markings are required as part of this installation, all long line markings and twenty-four-inch transverse hatch markings are to be an epoxy resin material, while all stop bars, crosswalks, legends, and arrows are to be thermoplastic, as specified herein. Thermoplastic markings shall not be installed on concrete pavement. Provide pavement markings as per the Material List and furnish and install pavement markings as shown on the PennDOT approved permit plan and as specified in PennDOT Publication 408.

C. Construction methods. Construction methods shall be in accordance with the applicable sections of the following documents: PennDOT Publication 408, PennDOT Publication 148, PennDOT Publication 111, PennDOT Publication 213 and PennDOT Publication 72M. The applicable document to be used is the most recent version or supplement of the date upon which construction begins.

§ D103 Specific equipment items.

A. Item Number 9952-2052: controller assembly, solid-state flasher, dual circuit, Type II mounting.

(1) Description: This work is the furnishing and installation of a solid-state school flasher assembly capable of remote access.

(2) Materials: Sections 952.2, 1104.04, 1104.05, and as per Material List.

(3) Construction: Section 952.3 and as shown on the Standard Drawings.

(a) In the presence of the Township Traffic Engineer, verify remote communications.

(4) Measurement and payment: EA.

B. Item Number 9000-XXXX: solar power system.

(1) Description: This work is the furnishing and installation of a solar powered system.

(2) Material: As recommended by the manufacturer. Solar panel and battery bank subsystem to operate the flashing beacon for a minimum of eight consecutive hours without solar array exposure to sunlight.

(3) Construction: In accordance with manufacturer's instructions.

(4) Measurement and payment: EA.

C. Item Number 9936-0411: school speed limit flashing warning sign, Type II.

(1) Description: This work is the furnishing and installing of a school speed limit sign mounted on a traffic signal support, as shown on the contract drawings or as directed by the Engineer.

(2) Materials: Section 936.2 and as per Material List.

(3) Construction: Section 936.3 and as follows:

(a) Mount the white LED indicator light to the back of the sign assembly.

(4) Measurement and payment: EA.

D. Item Number 9951-XXXX: ornamental traffic signal supports, as specified.

(1) Description: This work is the furnishing and installing of ornament traffic signal supports including pedestals and mast arms of the size indicated on the traffic signal plans as per the Material List. All mounting hardware must match the pole color.

(2) Materials:

(a) Union Metal Corporation decorative nostalgia traffic supports shall be designed in accordance with 2001 AASHTO (American Association of State Highway and Transportation Officials) criteria including interim specifications through 2006 for a wind zone of 80 mph; Appendix C, alternate method for wind pressures. Signal loading for design purposes will be per PennDOT standard loadings as shown in the Commonwealth of Pennsylvania's TC-8800 Series Traffic Standards (Publication 148) as well as the Departments "Criteria for the Design and Construction of Traffic Related Structures" (Publication 149) and with the actual plan loadings. Materials and workmanship will be in accordance with Publication 408. Design calculations and drawings bearing the stamp of a professional engineer registered in the State of Pennsylvania certifying that these designs meet these requirements shall be provided by the manufacturer.

(b) The pole and arm shaft shall be fabricated from commercial quality hot rolled steel. The shaft shall have only one longitudinal, automatically, electrically welded joint, and shall have no intermediate horizontal joints or welds. Only one length of steel sheet shall be used, which shall be formed into a continuously tapered shaft, having a taper of approximately 0.14 inch per foot.

(c) After forming and welding, the tapered shaft shall be longitudinally cold rolled over a hardened steel mandrel under sufficient hydraulic pressure to flatten the weld and increase the physical characteristics of the shaft. The shaft shall meet the chemical and physical properties of ASTM A595 Grade A, having a minimum yield strength of 55,000 psi. The cold rolling process shall form a 16 flute cross section for the pole upright shaft, The arms shall be round in cross section for all arm lengths. The upright shaft shall have 16 equally spaced Doric flutes, sharp and clear-cut throughout the entire length of the shaft. The radius of the flute crests shall not exceed the thickness of the metal of the shaft. Individually rolled flutes or round poles with fluted sheathing will not be acceptable.

(d) The base plates shall conform to ASTM A709 GR36 or ASTM A572 GR50. They shall be connected to the upright shaft by means of a 100% penetration weld. Included with each pole shall be six steel anchor bolts, which shall be per PennDOT specifications complete with hex nuts and washers. Nuts, washers and threaded areas of anchor bolts shall be hot dipped galvanized to ASTM A-153. Anchor bolts shall meet the requirements of ASTM F1554. Anchor bolts shall be identical to PennDOT standard specifications including material, length, diameter, bolt circle, embedment plates, nuts and washers for arm length being supplied.

(e) The pole shaft shall be furnished with two four-inch-by-six-and-one-half-inch reinforcing handhole frames and a 1/2-inch - 13UNC grounding provision. One near the pole base, the other opposite the mast arm.

(f) Each pole shall be provided with an ornamental style ball type pole top with ball cap of appropriate scale. Pole cap material shall conform to the requirements of AA-319 aluminum.

(g) Couplings for the mounting of traffic signals shall be welded into the pole for the purpose of supporting pedestrian signals as required. Decorative elbows shall be supplied by the pole manufacturer. No stainless steel banding shall be used. Angular orientations shall be as specified by the engineer. Spacing shall be as required to support the signal type selected.

(h) Similar provisions will be used for the mounting of other appurtenances such as cameras or street name signs.

(i) Couplings one-inch diameter NPT for the mounting of banners shall be welded into the pole at angles of 90°, 180°, and 270°. Couplings shall be installed with minimum projection above pole surface as to minimize aesthetic impact when not in use. Height and spacing shall be as required to support the banner type selected. A slotted pipe plug painted to match the poles shall be supplied for each coupling provided.

(j) The pole manufacturer will supply one-inch diameter banner arms of the lengths and quantities specified by the engineer with a removable screw-type ball fitting also painted to match the poles. One-inch diameter NPT threading shall be used for these components.

(k) Mast arms shall be monocurve flange plate mounted with an upsweep rise and shall include a steel arm plate with four connecting bolts. Plates shall conform to the requirements of ASTM-A36 steel. Ring stiffend gussets shall be supplied as well. The arm connection bolts shall conform to the requirements of ASTM A325.

(l) Arms shall be filled drilled by the installer. Rubber grommets shall be furnished for each signal location. Rigid-mount-type signal hanger brackets shall be supplied sized to fit the arm diameters at the locations shown on the contract documents. These brackets shall be finish painted after galvanizing to match structure finish. No stainless steel banding shall be used.

(m) The pole manufacturer shall be PennDOT approved Publication 35 Bulletin 15 listed for the manufacture of traffic signal poles. All welding to be performed in accordance with the requirements of AWS D1.1 in a shop certified to the American Institute of Steel Construction (A.I.S.C.) Simple Bridges.

(n) Poles, arms, and other structural steel items shall be hot dipped galvanized to the requirements of ASTM A123 and all exterior surfaces shall be powder coated Fed Color Standard A595B Gloss Black 17038 in accordance with powder coat manufacturers procedures. The powder coat finish will have a warranty of not less than five years after applied.

(o) The ornamental base shall be Union Metal Evanston Family Series and shall conform to the requirements of AA-319-O.F aluminum. It shall be two-piece split (clam shell) design with two removable doors at 180°. The base halves shall be split equally and fitted to provide a hairline seam when assembled. The base halves shall be factory assembled before shipment by means of internal lugs cast into the base bottom and stainless steel connecting pins at the top. The base casting shall fit securely around the pole and the base opening shall match the contour of the fluted pole. Finish paint base to match pole.

(p) Pedestrian poles of matching style and of appropriate scale will also be supplied by the mast arm manufacturer.

(3) Construction: Section 951.3 and as follows:

(a) The concrete foundation for the signal support shall be increased in size as required to ensure the ornamental pole base is properly supported. The concrete foundation shall extend a minimum of three inches beyond the width of the ornamental pole base on all sides.

(4) Measurement and payment: EA.

E. Item Number 9952-XXXX: controller assembly, solid-state, as specified.

(1) Description: This work is the furnishing and installation of a base-mounted controller cabinet and a traffic signal controller assembly of the type indicated.

(2) Materials: Section 952.2, as per Material List, and as follows:

(a) Cabinet. The controller and all associated equipment to be provided in a weatherproof cabinet of clean-cut design and appearance in accordance with PennDOT 408 Specifications and as follows:

[1] Size:

[a] Each cabinet shall be of sufficient size to accommodate all equipment. At a minimum, the cabinet sizes are as follows:

[i] Size 6 cabinets: 52 inches high by 44 inches wide by 24 inches deep.

[ii] Size 7 cabinets: 77 inches high by 44 inches wide by 24 inches deep.

[b] The standard size controller cabinet for Towamencin Township projects shall be a Size seven. Controllers with uninterruptible power supplies shall be equipped with an eighteen-inch extension. The cabinet size shall be increased or decreased by the supplier only if approved, in writing, by the Township Traffic Engineer based on the specific location of the cabinet and equipment.

[2] Finish. Cabinet to be constructed of sheet or cast aluminum. Finish to be natural with external welds ground flush.

[3] Door. A hinged door to be provided permitting complete access to the controller assembly. Door to be hinged on the right side with stops provided at 90° and 180°, plus 10°. A neoprene gasket to be attached to the cabinet making it weather and dust resistant. Door to be provided with a brass tumbler type lock as per Material List. Two keys to the main door to be provided for each cabinet.

[4] Auxiliary door.

[a] A small, hinged, and gasket-sealed auxiliary door to be included on the outside of the main cabinet door. The auxiliary door shall not allow access to the controller, its associated equipment, or exposed electrical terminals but shall allow access to a police panel. The police panel shall be provided with the following switches:

[i] Auto/flash.

[ii] Signals (on-off).

[iii] Automatic/manual.

[b] A flexible cord with push button to be provided for manual control of the intersection (minimum ten-foot length). Auxiliary door to be provided with a standard police lock as per Material List. Two keys for the auxiliary door shall be provided with each cabinet.

[5] Emergency generator connector. A generator connector shall be provided for the attachment of an alternative power source (emergency generator) on the exterior of the cabinet with a waterproof protective flip top cover. Appropriate overload and short circuit protection shall be provided within the controller assembly. The neutral wire of the alternative power source circuit shall be connected with the neutral bus of the controller unit. The receptacle shall be mounted either in the disconnect cabinet or on the controller cabinet itself at a location determined by the Township Public Works Director.

[6] Electrical connections. Electrical connections from the controller (and auxiliary devices) to outgoing and incoming circuits shall be made in such a matter that the controller can be replaced with a similar NEMA compatible unit, without the necessity of disconnecting and reconnecting the individual wires leading therefrom.

[7] Wiring panels. Cabinet to be furnished with suitable, easily accessible wiring panels. All panel wiring to be neatly arranged and firm. All wiring terminals to be labeled by means of silk screening.

[8] Interior lamp. Cabinet to be equipped with an LED lamp, suitable for freezing temperatures, for night lighting. A toggle switch to control the lamp to be mounted on the interior of the main door.

[9] GFI receptacle. Cabinet to be equipped with a NEC-type, ground fault interrupter duplex receptacle.

[10] Circuit breakers. The thirty-ampere circuit breaker shown on the PennDOT Standard Drawings and a fifteen-amp circuit aux breaker provided. The GFI receptacle shall also control the fan and the interior lamp.

[11] Expandability. Cabinet to be furnished with 16 load switch positions, six flash transfer relay sockets, and one flasher socket. This to include cabinet space, connecting cables, wiring terminals and load switch bases to facilitate the operation of the maximum controller expansion.

[12] Test panel. Cabinet to be provided with a detector test panel enabling authorized personnel to place simulated calls to the controller from all pedestrian and vehicular detectors.

[13] Surge protection. Cabinet to be provided with a surge protection package for the power line, detectors, pedestrian circuits, voice line, communications, and controller as per Material List.

[14] Sliding storage shelf. A sliding aluminum laptop shelf with hinged lid shall be installed in the cabinet. The slide shelf shall be capable of holding the cabinet manuals, intersection condition diagrams and wiring diagram.

(b) Base-mounted controller assembly, 2-8 phase, solid state, actuated, NEMA TS2, Type 1. Provide a traffic signal controller timer unit as per Material List. A spare timer unit shall be provided to the Township with each new controller or modified controller assembly.

[1] Required features. The controller supplied shall be capable of central server system coordination and emergency preemption operation for all phases.

[2] TS-2 ports. Provide as a minimum a standard SDLC serial Port 1 for communications to other devices in the cabinet, a standard serial Port 2 for systems communications, and a console serial Port 3 for local communications as defined by NEMA TS-2 standards.

[3] Communications requirements. An ethernet switch, if required, shall be tabulated separate from this item.

[4] Interval, sequence, and timing requirements. Controller assembly to provide the proper intervals and interval sequence as shown on the contract drawings. Controller to provide for the setting of each interval, portion of interval, or function by means of a keyboard and liquid crystal display (LCD). Interval and function controls to be located on the front of the controller and shall be properly designated as to the function each control performs.

[5] Relays/load switches. Controller assembly to be provided with solid-state load switches in accordance with NEMA TS-2 standards. Communication between the timer unit and the load switches is to be via the bus interface units (BIUs). Controller assembly to be equipped with appropriate relays, breakers, receptacles and wire as outlined in PennDOT Form 408. Controller assembly to be equipped with a radio frequency interference filter (RFI) in accordance with NEMA standard testing procedures and PennDOT Form 408. A spare BIU shall be provided to the Township with each new controller or modified controller assembly.

[6] Malfunction management unit (MMU). Provide MMU with ethernet capbilities as per Material List meeting NEMA TS-2 2003 standards. Provide the Township with a letter of certification from the malfunction management unit manufacturer or an accredited NEMA test laboratory, attesting to the supplied unit operation and compliance with NEMA TS-2 standards. A spare MMU shall be provided to the Township with each new controller or modified controller assembly.

[7] Environmental requirements. The operating ambient temperature range for the controller shall be -34° F. to 165° F. Two 100 cfm (minimum) cooling fans shall be provided. The fan thermostat shall be the line-voltage type, adjustable from 91° F. to 149° F., with fan set to turn on at 43° F. Weatherproof vents of sufficient area, minimum four square inches area, shall be provided in the lower part of the door or cabinet. The vents shall be covered with a disposable filter, held in place with bottom and side brackets.

[8] Expansibility. Controller supplied to be expandable to a maximum of 16 vehicle phases and 16 pedestrian phases without replacement of the chassis.

[9] Controller assembly acceptance. Prior to submission of catalog cuts, verify that certificates of approval, conditional or provisional, have been issued by the Pennsylvania Department of Transportation for traffic signal equipment, as provided in 67 Pa. Code Chapter 212. Furnish an electronic copy of warranties, guarantees, and parts lists with the controller catalog cuts.

[10] Testing.

[a] Upon completion of a controller assembly, conduct a physical and functional shop test of the assembly's continuous, satisfactory operation, for not less than 48 hours. Provide 25W loads for signal circuit and simulated inputs for detectors. Certify that the equipment operates as designed. Prior to the commencement of the bench test, notify the Township Traffic Engineer at least three working days in advance so that a representative may inspect the test site.

[b] After the traffic signal installation becomes operational, conduct a continuous, twenty-four-hour operating test for not less than 30 consecutive days. Prior to the initiation of full operation the signal operation must be placed in a "flash" mode for a minimum of five consecutive calendar days. Make the initial turn-on in the presence of the PennDOT Traffic Unit and the Township Director of Public Works and a service technician from the supplier of the signal controller, between the hours of 9:00 a.m. and 2:00 p.m., Tuesday through Thursday, except holidays. Correct failures during this test period by repairing or replacing malfunctioning parts or equipment, or faulty workmanship, regardless of cause, within 24 hours after having been notified by the Township. After correcting failures caused by defective equipment, material or faulty workmanship, restart the thirty-day test.

[11] Controller assembly warranty guarantee. The entire controller cabinet and all materials within the cabinet shall be warranted to be free from defects in workmanship and materials for a period of five years from the date of the end of the thirty-day test period. This warranty shall also state that the installation of the emergency generator connection does not void the manufacture warranty. Any parts found to be defective by the Township shall be replaced free of charge.

[12] Uninterruptible power supply (battery backup) system. System as per Material List, shall be supplied and installed in the controller. When the battery backup becomes active in the case of a PECO outage, a priority alarm shall be sent to the Township through the central server system, including a page sent to the Township's Traffic Signal Foreman. A minimum of three batteries shall be installed. Additional batteries shall be installed, as necessary, to provide for a minimum eight-hour run time.

(3) Construction: Section 952.3.

(4) Measurement and payment: EA.

F. Item Number 9000-XXXX: ethernet switch.

(1) Description: This work is the furnishing and installation of an ethernet switch. The ethernet switch shall have at a minimum three FSP ports and eight 10/100 ports. SFPs shall be supplied as required by plan sheets.

(2) Material: as per Material List.

(3) Construction: Follow manufacturer's instructions for installation.

(4) Measurement and payment: EA.

G. Item Number 9955-3722: pedestrian signal head, countdown hand/man.

(1) Description: This work is the furnishing and installation of a pedestrian signal head using universal hand/man LED indications with a countdown timer.

(2) Material: Section 955.2, as per Material List and as follows:

(a) The LED traffic signal lamp must be warranted against failure due to workmanship, material defects, or light degradation within the first 60 months of field operation by the manufacturer.

(b) The luminous intensity must meet or exceed the illumination values for the maintained minimum luminous intensity listed in the ITE Standard for "Pedestrian Traffic Control Signal Indications - Part 2: Light Emitting Diode (LED) Pedestrian Traffic Signal Modules," Section 3, "Photometric Requirement," Subsection 4.1.1.

A certificate of compliance from an independent testing lab certifying that the LEDs have been tested and are in compliance with ITE specifications must be provided.

(3) Construction: Section 955.3, and as shown on the Standard Drawings.

(4) Measurement and payment: EA.

H. Item Number 9955-XXXX: vehicular signal head eight-inch and twelve-inch sections.

(1) Description: This work is the furnishing and installation of vehicular signal head assemblies for the control and illumination of vehicular traffic signals with ITE-compliant LED indications.

(2) Material: Section 955.2, as per Material List and as follows:

(a) The LEDs must conform to the following:

[1] ITE Standard for "Vehicle Traffic Control Signal Heads, Light Emitting Diode (LED) Circular Signal Supplement."

[2] ITE "Vehicle Traffic Control Signal Heads - Light Emitting Diode (LED) Vehicle Arrow Traffic Signal Supplement."

[3] MUTCD.

(b) The LED traffic signal lamp must be warranted against failure due to workmanship, material defects, or light degradation within the first 60 months of field operation by the manufacturer.

(c) Furnish cut-away visors unless otherwise indicated. Furnish louvers with a nonreflective black finish. Furnish backplates that conform to the following:

[1] One-piece aluminum with a minimum thickness of 0.06 inch +/- 0.005 inch (thickness does not include retroreflective border).

[2] Powder-coated dull black (Federal Standard 595-37038) on both the front and back sides.

[3] Top, bottom, and sides that measure from five inches to eight inches in width.

[4] Rounded outside corners.

[5] Include louvers with no louvers closer than 0.5 inch from the inner or 2.5 inches from the outer edge. Orient the louver so it is vertical on sides and horizontal on top and bottom.

[6] Provide a minimum of four corner mounting attachment points per section head and must not interfere with the operation of the section head doors.

[7] Include passivated stainless steel type 316 or 304 screws, washers, and other installation hardware required to mount securely.

[8] Permanently mark the manufacturer name, part/model number and date of manufacturer on the back side.

[9] Universal backplates that fit all applicable PennDOT approved products.

[10] A minimum two-inch fluorescent yellow, Type IX retroreflective border, placed flush with the outer edge of the backplate and placed no closer than 0.5 inch from all louvers. No sheeting is allowed over any louvered area.

(d) A certificate of compliance from an independent testing lab certifying that the LEDs have been tested and are in compliance with ITE specifications must be provided.

(3) Construction: Section 955.3, and as shown on the Standard Drawings.

(4) Measurement and payment: EA.

I. Item 9956-0801: emergency preemption system.

(1) Description: This work is the furnishing and installation of emergency preemption detectors, emergency preemption verification beacons, a preemption card rack, preemption cards, and wiring as necessary to provide the required operation as shown on the approved traffic signal permit.

(2) Material: Section 956.4(u), as per Material List and as follows:

(a) Preemption equipment shall be capable of operating on a high-priority frequency, within its FCC allocated range.

(b) This item includes all of the following:

[1] One-directional detector heads.

[2] Manufacturer-supplied cable connecting the detectors to the interface card.

[3] Dialight LED confirmation lights.

[4] Three-conductor, 14 AWG cable to power confirmation beacons.

[5] Interface card and card cage to be installed in the controller cabinet.

(c) The material provided under this item shall carry a ten-year warranty against defects.

(3) Construction: Section 956.4(u) and as follows:

(a) Contractor shall field test the detectors by utilizing an emitter (approved by the engineer and PennDOT) positioned at the appropriate distance on the roadway. The detector head shall then be relocated and/or adjusted as directed by the Township Traffic Engineer to achieve the desired operation.

(4) Measurement and payment: EA.

J. Item 9956-XXXX: presence detection system.

(1) Description: Furnish and install a complete and operational stop bar presence detection system to operate as shown on the approved traffic signal construction plans and traffic signal permit plans. Detection shall be supplied for all detection zones, in place of standard in-pavement inductance loop detectors, unless otherwise approved by the Township in writing.

(2) Material: The detection system to be as per Material List. Include a detection unit for each approach specified, process modules, power cable, software, mounting hardware, detector cards, and all necessary items to provide a fully functional detection system. The detection must include an ethernet port for transmission of video back to the Township's traffic control center.

(3) Construction.

(a) Install and calibrate the detection system in accordance with the manufacturers' specifications to provide areas of detection and operation as indicated without detecting conflicting movements. Determine the exact location of the detectors with a representative of the manufacturer in the field before installation. Adjust the detectors as directed by the Township Traffic Engineer, PennDOT or representative of the manufacturer. Provide a service technician from the manufacturer of the detector equipment to attend the final inspection field meeting. This representative shall be available to assist with the physical installation, alignment and autocalibration of each supplied detector. PennDOT and the Township Traffic Engineer must approve the detection zones and operation.

(b) For video detection systems, the video feeds from the cameras shall be transmitted to the Township's Traffic Control Center via fiber optic cable.

(4) Measurement and payment: EA.

K. Item 9956-0601: advance dilemma zone detection system.

(1) Description: Furnish and install a complete radar detection system to provide dilemma zone protection as noted on the approved traffic signal construction plans and traffic signal permit plans. Detection shall be supplied for all detection zones, in place of standard in-pavement inductance loop detectors, unless otherwise approved by the Township Traffic Engineer in writing.

(2) Material: The dilemma zone protection system to be as per the Material List. Include a radar sensor for each approach specified, "Click!" modules, software, cables, mounting hardware, and all necessary items to provide a fully functional dilemma zone system.

(3) Construction.

(a) Install and calibrate the Wavetronix radar system in accordance with the manufacturer's specifications. Determine the exact location of the radar detectors with a representative of the manufacturer in the field before installation. In the presence of the Township Traffic Engineer and PennDOT, review the programmed zones for each radar unit, including the programmed speeds and distances for each zone. PennDOT and the Township Traffic Engineer must approve the dilemma zones and operation. Modify and/or add additional zones as directed by the Engineer.

(b) Provide a service technician from the manufacturer of the detector equipment to attend the final inspection field meeting. This representative shall be available to assist with the physical installation, alignment and autocalibration of each supplied radar detector. Technical support and training shall be provided to the Township thereafter to assist with troubleshooting, maintenance, or replacement of devices should such services be required for a period of 180 days after successfully completing the thirty-day operational test. Supply a radar detector warranted to be free from material and workmanship defects for a period of five years from date of installation.

(4) Measurement and payment: EA.

L. Item 9956-0500: pedestrian push button.

(1) Description: Furnish and install PennDOT-approved latching pedestrian push buttons as per Material List.

(2) Material: The push buttons should be equipped with an LED indication that is illuminated upon pedestrian actuation along with a two-tone beep sound. Include push buttons, control unit, mounting hardware, cables, signs and all other necessary items to provide a fully functional system. Do not utilize extension arms.

(3) Construction: Install the push button, control unit and all other necessary equipment in accordance with the manufacturer's recommendations.

(4) Measurement and payment: EA.

M. Item 9000-XXXX: communications cable, fiber optic, single mode 12 fibers.

(1) Description: Section 953.3(g) and as follows:

(a) This work is the furnishing and installation of cable and hardware to provide communications between the central computer system and at the local controllers, as shown on the interconnect plan. This work also includes all equipment needed to determine splice losses, attenuation losses, cable integrity and fiber distance data.

(2) Material: Section 953.3(g) and as follows:

(a) Furnish a lightning proof, single-mode, twelve-fiber, fiber optic cable which conforms to Bellcore TRTSY 000020, REA PE-90 and ANSI/ICEA S-87-640 in accordance with requirements of ANSI/TIA/EIA 568A, Commercial Building Telecommunications Cabling Standard.

(b) Fiber specifications:

[1] Core diameter: eight microns to 10 microns.

[2] Cladding diameter: 125 microns.

[3] Attenuation: at 1310/1550 nm, 0.35/0.25 dB/km (maximum attenuation for every fiber in cable across entire operating temperature range).

[4] Bandwidth: at least 10 GHz-km at 1300 nm optical wavelength.

[5] Preterminated or field terminated on one end with a fiber optic cable breakout box specified in this section.

[6] Operating temperature: -40° C. to 70° C.

[7] Relative humidity: not exceeding 95%, noncondensing.

(c) Cable specifications:

[1] Number of fibers: 12.

[2] Color coded with 12 different colors.

[3] Cable type: heavy-duty, loose tube.

[4] Capable of withstanding a tensile load of at least 2700 newtons during installation.

[5] Capable of withstanding a load of at least 800 newtons for long-term application.

[6] Minimum bending radius: 152 mm (six inches).

[7] Central member: dielectric.

(d) Connectors: LC connectors.

(e) Label clearly the following information on each reel:

[1] Customer name and address.

[2] Order number.

[3] Reel number.

[4] Destination.

[5] Ship date.

[6] Manufacturer's name, address and telephone number.

[7] Manufactured date.

[8] Cable code.

[9] Length of cable (one-foot segments).

[10] Listing of color codes for fibers.

[11] Setup parameters.

[12] Wavelength.

[13] Pulse width (OTDR).

[14] Refractory index (OTDR).

[15] Range (OTDR).

[16] Scale (OTDR).

[17] Test results.

(f) Clearly tag the fiber optic cable upon installation at every utility pole as follows:

Fiber Optic Communications Cable

Property of Towamencin Township

Phone Number [phone]

(g) Outside plant cables conform to the requirements of Rural Electrification Administration Specification - "REA Specification for Totally Filled Fiber Optic Cable, PE-90."

(h) Provide cable characteristics suitable for underground and aerial installations. Cable installed to be installed in a continuous run from patch panel to patch panel, with no splices.

(i) Furnish and install a single 24 AWG (minimum) THHN copper cable located in the conduit that contains fiber optic cable to assist the Township in locating the underground conduit in the future. Do not install the conductor to form a continuous circuit.

(3) Construction: Section 953.3 and as follows:

(a) Tests on the fiber optic cable to be conducted by a certified technician at the project site in presence of the Township Traffic Engineer as follows:

[1] Test the cable with a calibrated power meter/light source unit pair that is portable, battery operated, and allows quick field changes of adapters for "SC" and "LC" type connectors.

[2] Unit utilized to meet or exceed the parameters outlined above for single-mode fiber.

[3] Test the cable with a field unit optical time domain reflectometer (OTDR) for operation on single-mode fiber (8-10/125 micron meter) at 1,300 nm wavelength, to meet or exceed the parameters outlined above.

(4) Measurement and payment: LF.

N. Item Number 9957-0315: fiber optic fan-out kit.

(1) Description: This work is the furnishing and installation of the fiber optic hardware to provide communications at the controller location.

(2) Material: As follows:

(a) Fiber optic fan-out kit.

[1] Furnish a factory- or field-installed mountable fiber optic cable fan-out kit with a capacity for full splice storage and connect functions for the number of fibers in the fiber optic cable that are being terminated and meeting the following requirements:

[2] Provide transition from the fiber optic cables to individual fibers using fusion splices in accordance with manufacturer's instructions.

[3] Provide, on the outside surface of breakout box, the same number of LC-type female optical connectors as that of number of fibers in the fiber optic cable that are being terminated, in order to plug in jumper cables that connect to the equipment.

[a] Connector insertion loss: plus or minus 0.25 dB.

[b] Provide a removable top panel to protect the splices and pigtails in the breakout box.

[c] Maximum height of the breakout box: plus or minus 1.75 inches.

[d] Provide rack-mounted breakout boxes in all the cabinets in which fiber optic cable is terminated.

(b) Fiber optic jumper cable.

[1] Furnish simplex or duplex fiber optic jumper cables, as required, meeting the following requirements:

[a] Terminated with LC-type connectors.

(3) Construction: As follows:

(a) Follow manufacturer's directions for installation.

(4) Measurement and payment: EA.

O. Item Number 996X-XXXX: thermoplastic pavement markings.

(1) Description: This work is the application of thermoplastic pavement markings and/or legends of the type indicated on the approved traffic signal construction plan.

(2) Materials: as per Material List and as follows:

(a) White and yellow reflective thermoplastic striping material - as provided by an approved manufacturer listed in PennDOT Bulletin 15 and conforming to AASHTO M 249 (most recent revision).

(b) Glass beads - AASHTO M247, Type A (most recent revision).

(3) Construction: Sections 960.3, 962.3 and as follows:

(a) Thermoplastic is to be used for all stop bars, crosswalks, legends, and arrows shown on the approved traffic signal permit plan.

(b) After the application of thermoplastic material, protect the markings from traffic for a minimum period of 10 minutes or until the thermoplastic has dried sufficiently to prevent dirt pickup or tracking.

(4) Measurement and payment:

(a) Line: LF.

(b) Legend: each.

P. Item Number 9000-XXXX: epoxy resin pavement markings.

(1) Description: This work is the application of a reflectorized, two-component epoxy resin pavement markings and/or legends of the type indicated on the approved traffic signal construction plan.

(2) Material: as per Material List and as follows:

(a) Epoxy resin material: Use only epoxy resins and pigments from an approved manufacturer listed in Bulletin 15.

Composition	Percentage by Weight
	White
Titanium dioxide	20% ± 2 (ASTM D476 Type II)
Epoxy resins	80% ± 2
	Yellow
Chrome yellow	25% ± 2 (ASTM D211 Type III)
Epoxy resins	75% ± 2

(b) Furnish the Township Traffic Engineer with a copy of the manufacturer specifications for the proper mix ratios of the epoxy component, proper temperatures, proper mixing techniques, and any other necessary data to ensure that the epoxy material is being properly installed.

(c) Glass beads: AASHTO M 247, Type A (most recent revision).

(3) Construction: Sections 964.3, 962.3 and as follows:

(a) Epoxy resin pavement markings to be used for all long lines and twenty-four-inch transverse hatch markings shown on the approved traffic signal permit plan.

(b) The road surface shall be satisfactorily cleaned and pretreated as required for material adhesion prior to placement of any material. Dry (cure) to a no-track condition in 10 minutes or less when installed at a temperature of 75° F. plus or minus 2° F. at a thickness of 20 mils plus or minus one mil with glass beads applied at a rate of 20 pounds per gallon of epoxy. Uniformly distribute glass beads on surface.

(c) After the application of epoxy material and glass beads, protect the markings from traffic for a minimum period of 30 minutes or until the epoxy has dried sufficiently to prevent dirt pickup or tracking.

(4) Measurement and payment:

(a) Line: LF.

(b) Legend: each.

Q. Item Number 9000-XXXX: roadway lighting luminaires.

(1) Description: Roadway lighting luminaires shall be provided as overbuilds on the traffic signal mast arms as shown on the traffic signal plans. When ornamental signal supports are required, the luminaire arm and support extension shall match the color and design of the ornamental poles specified in the section titled "Ornamental Traffic Signal Supports" of these specifications.

(2) Material: The streetlights shall be as per Material List.

(3) Construction: Install the luminaire as shown on the traffic signal permit plan. If there are existing roadway streetlights within 25 feet of a proposed traffic signal mast arm, the existing streetlight should be removed and a new luminaire shall be provided as an overbuild mounted on the traffic signal mast arm. The luminaire shall have a mounting height of 30 feet above the roadway. The streetlighting cables shall be complete from the luminaire cobra head to the service disconnect box for the signal controller. There shall be a separate circuit breaker for the luminaires.

R. Item Number 9931-0001: post-mounted signs.

(1) Description: Section 931.1.

(2) Materials: Section 931.2 and as per Material List.

(3) Construction: Section 931.3 and as follows:

(a) Post-mounted signs shall be installed in accordance with PennDOT Publication 111, Traffic Control - Pavement Markings and Signing Standards - TC-8700 series, latest edition.

(b) For signs installed in concrete, they shall be installed in a PVC sleeve in the concrete to allow for easy replacement.