705General Requirements for Tr affic Signal and Highway Lighti ng

705.1 Description

This Work consists of providing and installing complete and fun ctioning Traffic Signal and lighting systems.

705.1.1 Definitions

Traffic-Actuated Controller. An electronic timing device that controls the timing and sequence of traffic phases in accordance with the varying deman ds of traffic registered by detectors. 705.2 MATERIALS

705.2.1 Signal and Lighting Materials

The Contractor shall provide new Materials, unless otherwise sp ecified in the Contract. The Contractor shall provide elec trical Materials in accordance with NEMA standards, the NEC®, and State and local ordinances or requirements. If revis ions to NEMA or NEC® requirements create a conflict with Material requirements, the Contractor shall apply the more stringent. The Contractor shall provide signal and lighting systems comple te with the necessary accessories for proper operation. The Contract will specify the extent and general arrangement of signal and lighting systems. The Contractor shall complete the systems as specifie d.

705.2.1 1 Material Approvals

Within 15 Days of Contract execution, the Contractor shall subm it a list of signal and lighting Materials proposed for use and their supply sources to the Project Manager for approval by the Traffic Technical Support Engineer. The Contractor shall include Materials, identified in the Contr act by performance characteristics, on this list w ith the following information ab out each item: 1. Name of the manufacturer; 2. Size; 3. Catalog number of each item; and 4. Other performance data (if required). The Contractor shall include complete shop drawings and Materia l certifications in submittals for Standards (poles), including lowering devices fo r high masts. The Contractor shall provide Material certifi cations after part manufacture, b ut before erection. If requested by the Project Manager or specified in the Contrac t, the Contractor shall submit samples of the proposed Material.

705.2.1 2 Prequalification

Section 705: General Requirements for Traffi c Signal and Highway Lighting Sy stems Page 801 The Contractor shall use only Traffic-Actuated Controllers, con troller cabinets, System Masters, signal monitors, vehicl e detectors, load switches, sig nal Standards, and lighting Standards prequalified before Bid Opening. The list of pretested and Acceptable signal items is on the Dep artment's Approved Products List and is available on the NMDOT website. The Department lists e ach Acceptable item by manufacturer and model number or identification number.

705.2.2 Backfill Materials

The Contractor shall provide backfill Materials for signal and lighting system excavations within the Roadway Prism or for foundations, suitable for compa ction in accordance with Section 210.3.2, “Compaction.” The Contractor shall backfill excavations for conduit or drilli ng pits outside the Roadway Prism with the Material removed from that excavation. The Cont ractor shall remove stones with diameters larger than four (4) inches, large pieces of con crete, vegetation, and other Deleterious Materials. The Cont ractor shall provide additional backfill Material, if necessary.

705.2.3 Pavement and Sidewalk Material

The Contractor shall provide pavement and Sidewalk replacements for signal and lighting system excavations in accordance with the Contract for the repl acement of the Material removed.

705.3 Construction Requirements

705.3.1 General

The Contractor shall ensure that the electrical Work is in acco rdance with the NEC® and applicable local ordinances. The Contractor shall obtain a per mit (If applicable) from the State Electrical Board (or equivalent S tate or local agency) before c onstruction. The Contractor shall provide permit proof to th e Project Manager before Work b egins on a new or relocating an existing service. All electrical Work relating to the installation or preparation of installation of signals and lighting must be supervised by a n on-site licensed journeyman e lectrician. The Contractor shall obtain approval from the local power compa ny for the exact location of the electric service before its installation. Unless waived by authorizing agency, the Contractor shall submi t evidence to the Project Manager that all electric al Work and installations have been inspected and approved by an authorized representative of the State Electrical Board o r the Traffic Services Signal Laboratory. The Contractor shall know the NEC® and local requirements and n otify the Project Manager promptly of any conflicts with the Contract documents.

705.3.2 Excavation and Backfill

The Contractor shall perform the excavation required for the in stallation of conduit, foundations, and other items, minimizing damage to Highways, St reets, or Roads. The Contractor shall not excavate until immediately before the inst allation of conduit and foundations. The Contractor shall not cut the existing pavemen t, until the Project Manager Section 705: General Requirements for Traffi c Signal and Highway Lighting Sy stems Page 802 approves. The Contractor shall perform compaction for Standard foundation s in accordance with Section 210.3.2, “Compaction.” The Contractor may use original Material, mechanically tamped, and neatly leveled to original grade, to backfill excav ations in natural ground or out of defined Roadway Prism. In grassed or landscaped areas, the Con tractor shall carefully remove sod before excavation and replace it after backfilling. To prevent damage to conduit during backfilling, the Contractor shall place at least two

705.3.3 Existing and Temporary Traffic Signals and Lighting Sys tems

The Contractor shall provide, install, and maintain temporary T raffic Signals and lighting systems, if specified in the Contract. The Contractor shall pr ovide the Project Manager with access to power disconnects and c ontrol Equipment during this p eriod.

705.3.3 1 Temporary Traffic Signals

Timing Plans for temporary Traffic Signals must be prepared by a professional Engineer registered and licensed by the State Board and must be submitte d to the Traffic Technical Support Section for approval. The Contractor shall remove and retain ownership of temporary Equipment, unless otherwise specified in the Contract. The Tra ffic Operations Section will inspect the temporary Traffic Signals before their initial acti vation.

705.3.3 2 Coordination of Work with Existing Facilities

The Contractor shall keep existing signal and lighting systems in operation until the new Material is installed and ready for operation, unless otherwise specified in the Contract. The Contractor shall not start Work that may cause the existing sig nals to become inoperative until Materials for the new installation are on hand and the specifie d regulatory signing or temporary signals are in place and approved by the Project Mana ger and Traffic Services Engineer. The Contractor shall schedule shutdowns in accordance with the construction traffic control Plan. The Contractor shall notify the Project Manager and the Maintaining Agency in writing at least five (5) Worki ng Days before a scheduled shutd own. When the Work requires additions o r modifications to existing s ignal or lighting systems, give the Project Manager and the Maintaining Agency written not ice at least five (5) Workings Days before any interruptions. The Contractor shall allow the Maintaining Agency to inspect the Work before and after re-energizing.

705.3.3 3 Salvage of Existing Material

The Contractor shall salvage the existing signal Material, incl uding cabinets and cameras, and avoid damage in handling. The Contractor shall di sassemble and deliver salvaged Material to the Department’s Signal Laboratory or to t he Contract specified location. The Department may require the Contractor to record/video recor ding Equipment prior to disassemble and packing. This Work will be considered Incident al to construction. The Contractor shall coordinate with the local power company to remove salvaged Section 705: General Requirements for Traffi c Signal and Highway Lighting Sy stems Page 803 lighting Material. If specified in the Contract, the Contracto r shall remove and deliver the Material to the required location.

705.3.3 4 Final Operations and Acceptance Requirements

After the signal is in operati on and before Final Acceptance, t he Contractor shall ensure that the signal remains fully ope rational in accordance with Se ction 105.18, “Acceptance.” If the signal malfunctions or is otherwise disabled, the Contra ctor shall notify the Project Manager, the Traffic Services Signal Laboratory, and the Mainta ining Agency immediately, and provide emergency repairs. New lighting systems or modifica tions to existing lighting syst ems require a 30-Day installation test in accordance with Section 705.3.5, “Testing. ”

705.3.4 Responsibility for Utility and Maintenance

The Contractor shall ensure that the Maintaining Agency is the customer of record for the electrical and communications u tilities. The electrical energy and communications services cost, maintenance and operational responsibility for existing s ignal and lighting systems undergoing Contract modifications will remain with the Maintain ing Agency, unless otherwise directed in the Contract. The Contractor shall continue maintenance of new signals and li ghting systems until partial or Final Acceptance of t he Project. The electrical and communication costs of the signal and lighting systems shall be borne by the Contractor un til Acceptance of the system by the Department, after which the cost will become the responsibi lity of the Maintaining Agency. The Contractor will be reimbursed for actual energy and communi cation services costs and costs of permit transfer per Section 705.5, “BASIS OF PAYMENT.” The Contractor shall submit an appropriate billing verification to the Project Manag er. After partial or final Acceptance of the Project, the Maintaini ng Agency is responsible for the signal and lighting systems’ operations and maintenance.

705.3.5 Testing

705.3.5 1 Wiring Tests

Before the Department’s Acceptance of the Work, the Contractor shall perform the following tests on the lighting and signal circuits: 1. Continuity of each circuit; 2. Grounds or shorts in each circuit; 3. Functional test to demonstrate that all parts of the system function as specified or intended; and 4. When requested, conduct a megger test of each circuit betwee n the circuit and ground, including the insulation re sistance for all vehicle loo ps, direct burial wire, or cable. The Contractor shall ensure that the initially applied voltage for the tests is: 1. No greater than the rated voltage of the cables; and 2. Has a uniform rate of increase, of not more than 100% in ten (10) s or less than 100% in 60 s. Section 705: General Requirements for Traffi c Signal and Highway Lighting Sy stems Page 804 The Contractor shall replace or repair faults in Materials or i n any part of the installation revealed by these tests, as app roved by the Project Manager. T he Contractor shall repeat the same test until no fault appears. The Contractor shall perform the tests in the presence of the Project Manager and/or Signal Laboratory personnel or both, as directed. The Contractor shall provide all electrical power, instruments, and personnel required for the test.

705.3.5 2 Operation Tests

The Department requires a 30-Day operational test period, which starts when the Lighting System are completely installed and fully operational. The Con tractor shall submit a request for approval to start the 30-Day operational test period, in wr iting, to the Project Manager and the Traffic Services Engineer. The Department will grant partial Acceptance of the system upon satisfactory completion of the 30-Day operational test period and will grant Final Acce ptance in accordance with Section 105.18, “Acceptance.” The Contractor shall shop-test the controllers in accordance wi th Section 714.3.2, “Testing.” The Contractor shall ensure that timing for signal controllers during the installation test period is as specified in the Contract. The Contractor shall n ot place a signal in operation until the Traffic Services Engineer ver ifies the time settings and th e correctness of signal indication outputs. The Contractor shall provide access to the signal con troller for the Inspector during the test period.

705.4 METHOD OF MEASUREMENT—Reserved

705.5 Basis of Payment

Signal/Lighting System Start-up Costs will be paid for the act ual cost incurred. The Contractor shall provide the Project Manager with a detail ed cost breakdown, including receipts and invoices of actual costs incurred. For the purpose of bidding, the Department will enter into the Bid Schedule a fixed amount for Signal/Lighting System Start-up Costs. Pay Item Pay Unit Signal/Lighting System Start-up Costs Allowance Furnishing and installing of Traffic Signal and lighting system s will be measured and paid for, as provided in the applicable sections of these Specificat ions, for the Work specified in the Contract.

705.5.1 Work Included in Payment

The following Work and items will be considered as included in the payment for the main items and will not be measured or paid for separately: 1. Allowed costs required for energy and communication service for the energy/communication permit fees , and energy/communication perm it transfer fees. Section 706: Signal and Lighting Service Systems Page 805