SPECIAL SPECIFICATION 6647 Automated Barrier Gate Assembly

Transcription

1 1995 Metric CSJ SPECIAL SPECIFICATION 6647 Automated Barrier Gate Assembly 1. Description. This Item shall govern for the furnishing and installation of an Automated Barrier Gate (ABG) assembly in designated field locations as shown on the plans and as detailed in this special specification. The ABG assembly shall include, but not be limited to, the following: Gate Arm including: - Gate Lights Gate Housing inclusive of electrical control components and associated equipment including: - Motor and the associated mechanical equipment - Hand crank - Control relays and limit switches ABG Controller including: - Operational Software ABG Subsystem Control Panel including: - Mode Selection Switches and control pushbuttons When shown on the plans, the ABG assembly shall be integrated with Electro-Mechanical Dynamic Sign described in Special Specification Electro-Mechanical Dynamic Sign, detector loops described in Special Specification Loop Detector For Surveillance, Communication, and Control (SC&C), flashing beacon assembly described in Special Specification Roadside Flashing Beacon Assembly, and flasher controller described in Special Specification Flasher Controller Assembly, located elsewhere in the plans and specifications, to comprise a complete a ABG assembly. Terminology. Due to the varying definitions used in technology, this section defines specific terms as they apply to this Special Specification. (1) ABG Assembly. Consists of all of the components, flashing signs, messages signs, obstruction detection devices, and gates that will be capable of prohibiting access as shown on plans. (2) ABG Controller. Controller, which is located in the field gate control equipment cabinet, to sequence warning signage, obstruction detection devices and gate actuation. (3) Controller Electrical Interface (CEI). The communication protocol used by the Master Controller in the TMC to communicate with the ABG controller in the field

2 (4) Electro-Mechanical Dynamic Sign. A sign with 2 or more fixed messages that can be displayed by electrical control. (5) ABG Subsystem Control Panel. This is a panel located in the gate control equipment cabinet to allow local operation to prohibit access as shown on the plans by authorized personnel on site. (6) Graphical User Interface (GUI). A program that uses graphics to display information, such as Windows. (7) Master Controller. The Windows NT computer system and related software, which operates the ABG assembly. (8) Traffic Management Center (TMC). Central site from where the district coordinate and control traffic management devices. 2. Materials. (1) General. Materials shall conform to the pertinent requirements of the following Items: Item 442, "Metal for Structures" Item 445, "Galvanizing" Item 449, "Anchor Bolts" Item 448, "Structural Field Welding" Item 620, "Electrical Conductors" Item 682, "Vehicle and Pedestrian Signal Heads" All materials furnished, assembled, fabricated, or installed under this Item shall be new, corrosion resistant, and in strict accordance with the details shown on the plans and in the Specifications. All materials in an assembly shall function together as a complete system. The barrier gate shall be horizontal or vertical swing type, as shown in the plans, motoroperated, and gear driven. The length of the gate shall be sufficient to span the roadway as indicated on the plans, in the range of approximately 2.44 m to 7.92 m (8 to 24 feet). The barrier gate assembly shall withstand wind loading, as shown on the plans, without permanent deformation. Barrier gate design shall conform to latest edition of AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaries, and Traffic Signals and Interim Specifications thereto. (a) Electronic Components. All electronic components shall comply with Special Specification "Electronic Components" located elsewhere in the plans and specifications. (b) Mechanical Components. All external screws, nuts, and locking washers shall be stainless steel; no self-tapping screws shall be used unless specifically approved by the Engineer. All parts shall be made of corrosion resistant material, such as plastic, stainless steel, anodized aluminum, or brass. Protect all materials used in construction from

3 fungus growth and moisture deterioration. Separate dissimilar metals by an inert dielectric material. (c) Environmental Design Requirements. The barrier gate assembly and component equipment shall meet all specified requirements during and after subjecting to any combination of the following conditions: Ambient temperature range of minus -18ºC to 60ºC (0ºF to 140ºF). Temperature shock not to exceed 17ºC (63ºF) per hour, during which the relative humidity shall not exceed 95%. Relative humidity range not to exceed 95% over the temperature range of 4ºC to 43ºC (40ºF to 109ºF). Moisture condensation on all surfaces caused by temperature changes. (2) Functional Requirements. (a) Gate Arm. Fabricate the gate arm from 6061-T6 rectangular aluminum and/or special high strength fiberglass rectangular tubular shapes. All bolts, nuts, washers, braces, and brackets shall be stainless steel or aluminum. Nails shall not be permitted. As necessary, drill bolt holes in the fiberglass parts of the gates and sand all edges smooth. The length of the gate arms shall be as shown on the plans. Cover both sides of the gate arms with 405 mm (16-inch) alternating red and white Engineering grade reflectorized sheeting as shown on the plans. Gate arms shall be the "breakaway" type with shear pins. When excessive force is applied to the gate arm the pin shall shear. The arm shall then swing 45 degrees horizontally and drop free of the gate operator, minimizing damage to the vehicle and the gate operator. (b) Gate Housing. Enclose all equipment needed for specified operation of gate arm in the gate housing. Housing shall meet all pertinent requirements of Special Specification "Equipment Cabinet" located elsewhere within the plans and specifications. The gate housing shall protect equipment from moisture, dust, dirt and corrosion. The gate housing shall be fabricated from 13 mm (½ ), 6 mm (¼ ), or 10 gauge galvanized steel to form a strong welded unit. Welding shall be in accordance with the ANSI/AWS Structural Welding Code D1.1. The housing shall be hot dipped galvanized after fabrication. The housing base shall provide four 16 mm (5/8 inch) holes for mounting to the foundation. The gate manufacturer shall supply anchor bolts and templates. All external fasteners 13 mm (½ inch) or less shall be stainless steel. Gate operator transmission shall be gear-driven, with no belts or chains. The drive train shall be connected to the arm shaft with a connecting rod having self-aligning ball ends. The connecting rod shall be constructed of ASTM A311 Class B high strength stress proof steel. The transmission mechanism shall be a removable

4 single unit. Each transmission sub-assembly shall be interchangeable with all other units. A solenoid release, automatic motor brake shall be furnished as part of the gate drive mechanism. The brake shall automatically release when the hand crank is inserted to manually operate the gate. Lubrication shall not be required at any point more often than once every 12 months. All gears, motor pinions, and similar mechanical parts shall be enclosed and running in oil, with the exception of the limit switch drive chain and sprocket, where silicon lubricant shall be used. Furnish a hand crank and drill crank with each gate to operate the gate during power failure or manual operation. Insertion of the hand crank shall automatically disable the control circuit to the motor-reversing Contractor and release the magnetic brake. Manual operation shall be accomplished from outside of the housing by inserting the hand crank through the housing. Include an automatic safety switch to disconnect the control circuit power when the hand crank is inserted to allow for manual operation. Rigidly attach the capstan column to the main frame through heavy bearings on each end to prevent the transmission from being subjected to strain originating from the arm or panel assembly. The rotating main shaft shall not be less than 65 mm (2-1/2 ) in diameter and shall be journaled in radial and thrust bearings of selflubricating, oil-impregnated bronze. A shear pin shall be included as an integral part of the main shaft assembly to minimize damage to the gate operating mechanism and the vehicle in the event of a collision. Provide a heavy steel arm mounting bracket, clamped to the main shaft, to allow positioning of the gate arm at any point in the 180 degree circular pattern. Provide removable access doors on each side of the main housing. Doors shall be fabricated from the same material as the housing and be equipped with bronze hinges having stainless steel hinge pins. Provide each door with a three-point vault-type stainless steel handle and index plate. The handle, spindle and index plate shall be locked in position with a bronze cylinder lock. Supply each gate with two keys; all locks shall be keyed alike. Provide each door with a louvered and screened vent at the top and bottom. (c) ABG Controller. Provide an ABG Controller used to control a number of gate arms and housings as shown on the plans. Provide detailed logic diagram and cabinet location for approval by the Engineer. All inputs and outputs to the controller unit shall conform to all interface and environmental standards in NEMA TS The controller unit shall be completely solid state and digitally timed. No circuit cuts shall be allowed on circuit boards in any of the equipment supplied. Any wire jumpers included on circuit boards shall be placed in plated through holes

5 that are specifically designed to contain them. Jumpers that are tack soldered to circuit traces or are added to correct board layout errors are not acceptable. All sockets shall have two-piece, machined contacts and closed end construction to eliminate solder wicking. The outer sleeve shall be brass with tin or gold plating and tapered to allow easy IC insertion. The inner contact shall be beryllium copper sub-plated with nickel and plated with gold. All sockets shall have thermoplastic bodies meeting UL Specification 94V-0. Other high quality sockets may be acceptable but must have prior approval of the Engineer. Sockets meeting alternate specifications shall be submitted in writing with the bids. Zero insertion force sockets will not be allowed. User programmed entries and timing settings shall be stored and maintained in non-volatile memory. Battery power will not be allowed for this application. All circuit components shall be of high quality and designed to withstand any of the environments, and voltage conditions described in Part 2 of NEMA Standard TS The controller unit shall be designed to operate properly with the logic ground isolated from the AC neutral (common). (d) ABG Subsystem Control Panel. Provide an ABG subsystem control panel used to send commands to an ABG controller. Provide a detailed ABG subsystem control panel layout and cabinet location for approval. The ABG subsystem control panel may be combined with other device control panels when shown on the plans. Access to the ABG subsystem control panel shall be such that the operator does not have access to the ABG controller or other electronic equipment. Operating the ABG subsystem control panel shall cause all devices in the ABG assembly to operate as shown on the plans. Sequence to open and close shall be in order shown on the plans. Any attempt to open or close the gate assembly out of sequence shall result in an error. (3) Electrical Requirements. (a) Gate Arm. Furnish and install two-way gate lights on gate arm as shown on the plans. Power to the gate lights shall be fused to protect against shorts. Gate lights shall be shock resistant and shall be rigidly bolted to the gate arms. Provide 102 mm (4 in.) red lens, and 12 volt DC bulbs which have a minimum average service life of 5000 hours. All wiring between gate terminal boards and gate lights shall be two-conductor, maximum size 14 AWG stranded wire, PVC-jacketed cable, with a two prong quick disconnect plug and connector neatly strapped to the arm and terminating in watertight connectors at fixture entrances. Install the cable in PVC conduit fastened along or inside gate arm. Conduit strapped to the gate arm shall conform to requirements of Electrical Details shown on the plans

6 Install a flasher controller in the gate housing. The flasher controller shall flash the lights while the gate is closing and opening. When gate is closed, the lights shall flash at all times. (b) Gate Housing. Drive Motor. The motor shall be totally enclosed, non-ventilated, ball- bearing, and instant reversing type and be sized according to the manufacturer recommended for the gate arm length and the requirements specified herein, but shall be ½ hp minimum. Motor Control Circuits and Accessories. Provide a NEMA 1 electrical compartment to contain the following minimum electrical components, which shall be provided as part of this bid item: - Reversing motor starter with thermal overloads - Breaker for motor disconnect - Breaker for control and accessories - Panel for local circuits - Terminal blocks with identification strips - Thermostat and heater mounted in bottom - Dual receptacle - Lamp outlet - Limit switches Limit Switches. Provide adjustable limit switches in the gate housing to restrict movement of gate arm as shown on the plans. The gate shall have a travel range of 90 to 180 degrees as indicated on the plans. The entire 90-degree travel of the gate shall be accomplished in less than 12 seconds. For 180-degree travel, the time shall be less than 20 seconds. Provide Motor burnout protection to protect the motor when the gate meets an obstruction. The gate operator limit switch shall be a unit assembly containing 8 individual switches having one set of normally open and one set of normally closed contacts each. Contacts shall be totally enclosed and shall have a UL Rating that exceeds motor run load amperage rating by at least 100%. An independent cam shall control each individual switch, which shall be adjustable with a single setscrew. The limit switch body, cams and shafts shall be of corrosion resistant non-ferrous materials. Wiring. All wiring and labeling shall meet the requirements of Article 250 of the National Electric Code and pertinent requirements of Special Specification "Equipment Cabinet" located elsewhere in the plans and Specifications. Wires entering and exiting the gate housing shall be via terminal blocks in the housing and through openings in the concrete foundation or pedestal. Gate housing shall be properly grounded as described in Article 250 of the National Electric Code

7 Cut all wires to proper length before assembly. No wire shall be doubled back to take up slack. Wires shall be neatly laced into cables with nylon lacing or plastic straps and secured with clamps. Provide service loops to facilitate the removal and replacement of assemblies, panels, and modules for maintenance. Power Requirements. Provide single phase 240 Volts Alternating Current (VAC) ±40 VAC 60 Hertz (Hz) ±3 Hz. The equipment operation shall not be affected by transient voltages, surges, and sags normally experienced on commercial power lines. Check the local power service to determine if any special design is needed for the equipment. The extra cost, if required, shall be included in the price bid for this item. Transformers shall meet the requirements of UL 506. Transient Suppression. All DC relays, solenoids and holding coils shall have diodes across the coils for transient suppression. All AC Contractors shall have snubbers. Protection. The equipment shall contain readily accessible, manually resettable, or replaceable circuit protection devices (such as circuit breakers or fuses) for equipment and power source protection. Provide circuit breakers or fuses, and size such that no wire, component, connector, PC board or assembly is subject to sustained current in excess of their respective design limits upon the failure of any single circuit element or wiring. Fail-Safe. The equipment shall be designed such that the failure of the equipment shall not cause the failure of any other unit of equipment. (c) ABG Controller. Locate the ABG controller as shown on the plans. The ABG controller shall cause the number of Gate Arms and Gate Housings to operate as shown on the plans and as described in this special specification. When shown on the plans, the ABG controller shall control Electro-Mechanical Dynamic Sign described in Special Specification Electro-Mechanical Dynamic Sign, detector loops described in Special Specification Loop Detector For Surveillance, Communication, and Control (SC&C), flashing beacon assembly described in Special Specification Roadside Flashing Beacon Assembly, and flasher controller assembly described in Special Specification Flasher Controller Assembly, located elsewhere in the plans and specifications, together with the ABG assembly as a single subsystem. All software developed under this contract shall be the property of TxDOT with all rights reserved by TxDOT and meet the requirements as set forth in the OCD, SRD, ICD and SDD documents. The communication protocol for the ABG controller and any associated maintenance software shall comply with NEMA TS 3.3, latest revision-1996 National Transportation Communications for ITS Protocol (NTCIP) Class B

8 Profile. The ABG controller shall communicate with Master Controller software via RS-232. The ABG controller and any associated maintenance software shall be capable of operating under the existing NTCIP communication protocol used by TxDOT. Change of protocol shall be accomplished through change of EEPROM or programmable logic control (PLC) in the ABG controller. Each ABG controller shall be uniquely addressable. The ABG controller shall only respond to commands for its unique address. Each ABG controller shall be capable of dial-up and multi-drop operation. Switching between dial-up and multi-drop operation shall not require software or programming modification. All timing for warning signs and gates shall be adjustable from the Master Controller software in the TMC and are defined as follows: Time Zero (TZ) is the time when an ABG assembly function is started. Time Flasher for Closing (TFC) is the time from TZ till the roadside flashing beacon assembly comes on for closing. TFC shall have an adjustable range of 0 to 10 minutes in 1-second increments. Default will be 0 seconds. Time Flasher for Opening (TFO) is the time from TZ till the roadside flashing beacon assembly goes off for opening. TFO shall have an adjustable range of 0 to 10 minutes in 1-second increments. Default will be 0 seconds. Time Electro-Mechanical Dynamic Sign Closed (TEMDSC) is the time from TZ till the Electro-Mechanical Dynamic Sign changes to desired message on closing. TEMDSC shall have an adjustable range of 0 to 10 minutes in 1- second increments. Default will be 0 seconds for closing. Time Electro-Mechanical Dynamic Sign Open (TEMDSO) is the time from TZ till the Electro-Mechanical Dynamic Sign changes to desired message on opening. TEMDSO shall have an adjustable range of 0 to 10 minutes in 1- second increments. Default will be 0 seconds for closing. Time Gate Close n (TGCn), where n equals gate 1 through 12, is the time from TZ till gate n closes. TGCn shall have the option to hold in cases of signal coordination. TGCn shall have an adjustable range of 0 to 10 minutes in 1- second increments. Default shall be for TGC1 1, with gate 1 being the first gate that traffic would encounter, set to 20, TGC2 set to 40, TGC3 set to 60, TGC4 set to 80, TGC5 set to 100, TGC6 set to 120, TGC7 set to 140, TGC8 set to 160, TGC9 set to 180, TGC10 set to 200, TGC11 set to 220 and TGC12 set to 240 seconds. Time Gate Open n (TGOn), where n equals gate 1 through 12, is the time from TZ till gate n opens. TGOn shall have an adjustable range of 0 to 10 minutes in 1-second increments. Default shall be for TGO1 through TGO12 set to 0 seconds

9 (d) ABG Subsystem Control Panel. The ABG subsystem control panel shall send signals to ABG controller causing operation of the ABG assembly. The ABG subsystem control panel shall not be microprocessor based. The ABG subsystem control panel shall be located in an equipment cabinet as shown in the plans. When shown on the plans, the ABG subsystem control panel shall send signals to the ABG controller to cause operation of the ABG assembly. Provide Operations Mode select switches for field personnel to override the remote control function and to operate the gate with pushbuttons. The ABG subsystem control panel shall provide two (2) selectable modes of operation on the ABG subsystem control panel. Remote Control Mode - Each gate assembly shall be controlled by an ABG controller. Remote control software may communicate directly with the ABG controller. Remote control shall be locked out when in Local mode. Local Mode - The gate shall be controlled locally by the use of switches on the ABG subsystem control panel located in the equipment cabinet. When ABG subsystem control panel door is closed, the ramp ABG controller shall return to Remote Control Mode regardless of the position of the operations mode select switch. The ABG subsystem control panel shall have at a minimum the following clearly labeled waterproof switches and indicators: a) Operations Mode Select Switch - This switch in conjunction with the ABG subsystem control panel mode switch shall control the mode of operation of the gates. The positions of this switch shall be Local and Remote. Only one position can be selected at one time. b) Gate Position Indicators Clearly labeled light emitting diodes (LED) mounted on the ABG subsystem control panel shall be provided to show the gate positions, either open (green) or closed (red). The LED's shall reflect the status of the signal confirms described below: Commands Confirms 1. Open 1. Opened 2. Close 2. Closed 3. Local Control 3. Local Control c) Error Indication Clearly labeled light emitting diodes (LED) mounted on the ABG subsystem control panel shall be provided to show that an error has occurred (red). A true "open command" (0 VDC) from the ABG control panel for greater than 0.5 to 5 seconds, adjustable in 0.5 second intervals, simultaneous with a false "close command" shall cause the ABG controller to open the gate arm

10 3. Construction Methods. A true "close command" (0 VDC) from the ABG control panel for greater than 0.5 to 5 seconds adjustable in 0.5 second intervals simultaneous with a false "open command" shall cause ABG controller to close the gate arm. A true "local control confirm" shall indicate that the operations mode select switch is in the local position. A true "open confirm" shall indicate that the gate is fully open. A true "closed confirm" shall indicate that the gate is fully closed. Both "open confirm" and "closed confirm" shall be false when the gate is not fully open or fully closed. Invalid conditions shall not be acted upon by the ABG subsystem control panel, including: a) Valid command of less than 0.5 seconds in duration. b) Simultaneous true "open command" and "close command". c) Simultaneous false "open command" and "close command". The gate arm and housing shall, while in motion, respond to a valid command requesting a change of direction, without harm to the gate arm, housing, or drive mechanism. (1) General. The ABG assembly design and construction shall utilize the latest available techniques with a minimum number of parts, subassemblies, circuits, cards, and modules to maximize standardization and commonality. The equipment shall be designed for ease of maintenance. All component parts shall be readily accessible for inspection and maintenance. Provide test points for checking essential voltages and waveforms. (2) Software Requirements. All software developed under this contract shall be the property of TxDOT with all rights reserved by TxDOT and meet the requirements as set forth in the OCD, SRD, ICD and SDD documents. Prior to fabrication of the ABG assembly, deliver software to Engineer for evaluation not less than 30 days and approval or comment. The software operating system for the Master Controller software shall operate on the latest version of MS Windows NT. The ABG master controller software shall conform to Win32 Application written in Visual C++ language. The software shall conform to Win32 Applications Programming Interface (API) utilizing Microsoft dynamic link libraries. Dynamic Data Exchange (DDE) shall be utilized to enable ABG assembly action through another application program provided by the Department. Assembly language, if required for speed, may be used for drivers and/or I/O management. The ABG master controller software shall allow a remote terminal to communicate with the ramp ABG controller. Communication with the ABG controller shall be through dedicated or dial-up lines. Software capable of operating the ABG assembly from a remote location shall be furnished. Submit two (2) copies of the Remote Terminal

11 software for evaluation and approval. Provide minimum functions described in this special specification. The ABG master controller software shall be designed to be user friendly GUIs, utilizing color menu or window driven screens. Communication with the ABG controller shall be asynchronous through at least two EIA RS-232D ports. One port shall be for dial-up or dedicated communications and one port shall be for local operation and diagnostics. Communications data rate shall be user selectable. The software shall poll each connected ABG controller for status retrieval at administrator selected one minute time intervals, from one minute to 24 hours on dedicated lines. On dial-up lines, the polling frequency shall be administrator specified for each ABG controller from thirty minutes to 24 hours. The ABG master controller software shall include a GUI to view the current status of operation of all connected gates, Electro-Mechanical Dynamic Sign, and flashing beacons, as shown on the plans, as retrieved at the last polling. The ABG master controller software shall display a pull down menu to select each ABG assembly by its label and location, and display buttons to open, close, or abort the ramp ABG assembly operation. The ABG Master Controller software shall include a function to view the operational status of each device. Any malfunction of a connected device shall be recorded in a log file. The log file shall be printable and exportable to Microsoft Office applications. The ABG master controller software shall permit access by a minimum of 16 users. Each user shall be identified by name, password and access rights. To gain access to the system, each user shall enter a user name and password, which shall be recorded in the log file. Access rights shall be fully programmable by levels for each user and shall entitle the user to access only those functions which the user is authorized to access. Minimum levels include viewer, user, and administrator groups. Groups shall include automatic selection of access rights. The ABG master controller software shall automatically log off any operator after a user-specified time of keyboard inactivity. Each event, including log on attempts by non-authorized users, shall be recorded in a log file. The record shall include event number, date/time, gate name/user name, and event description. Status logs and message libraries shall be stored to MS Windows NT FAT formatted hard disk in ASCII format. The ABG master controller software shall automatically start a new log file at the beginning of each month. The previous log files shall automatically be saved on hard disk. The ABG master controller software shall display and print any log file on the system sorted by user login, event description, date/time, or gate name. The ABG master controller software shall derive its time from the MS Windows NT operating system clock. The Master Controller software shall be able to download the time to the ABG controller in the field

12 Each function of the ABG Master Controller shall have a context sensitive help screen and each function shall have selectable user access rights. The ABG master controller software shall allow an operator to set a time and date to send a command to the ABG controller. To avoid burning a phosphor or LCD screen, the software shall be complainant with Windows NT operating system screen saver system. Equipment supplied shall meet the Energy Star specifications for energy efficiency. (3) Testing, Training, Documentation, and Warranty. (a) Testing. Testing of the ABG assembly shall comply with Special Specification Item, "Testing, Training, Documentation and Warranty". (b) Training. Training for the ABG assembly shall comply with Special Specification Item, "Testing, Training, Documentation, Final Acceptance and Warranty". (c) Documentation. ABG Assembly Documents. Documentation for the ABG assembly shall comply with Special Specification Item, "Testing, Training, Documentation and Warranty". Furthermore, sufficient documentation shall be provided to reflect "as-built" conditions and to facilitate operation, maintenance, modification, and expansion of the system or any of its individual components. Manufacturer supplied documentation which covers the intent of this requirement may be used, subject to approval of the Engineer. General. The following documents are to be produced for an ABG assembly as shown on the plans. These documents shall be developed for TxDOT and all information shall be the property of TxDOT. An ABG assembly shall consist of devices to prohibit access as shown on the plans. As a part of the ABG assembly, there shall be a method of notifying approaching traffic that access is prohibited as shown on the plans. Additional components shall be incorporated to ensure the safety of approaching traffic and prevent the assembly components from causing unnecessary or unreasonable damage or injuries as shown on the plans and specifications. This ABG assembly shall be controllable both remotely at the TMC, through a dialup port to the TMC Master Controller computer, and on site. ABG Controller Scope of Control and Inputs. The ABG controller used in the ABG assembly shall be capable of controlling and inputting at a minimum the following: - Control at a minimum 12 barrier gate devices. - Input at minimum 12 gate obstruction detection devices. Inputs not used shall default to non-obstruction detection. - Control at minimum of 4 Electro-Mechanical Dynamic Sign each capable of displaying a minimum of 3 messages. - Control at a minimum 4 warning flashers. - Have at minimum 4 inputs for traffic signal coordination. Inputs not used shall default to non-signal coordination

13 - Have at minimum 4 outputs for controller status indicators. - Input at minimum 2 preemption devices. Inputs not used shall default to nonpreemption. - Input/ Outputs for ABG pushbutton control panel. Operational Concept Document (OCD). The Contractor awarded the bid shall submit to the Engineer the OCD within 60 days of contract execution for review and approval. The OCD shall include, but not be limited to all components that provide information to the ABG controller and all devices that the ABG controller has control over. The OCD shall contain the following minimum information: a) Describe all the ways closing and opening processes as shown on the plans and specifications will be initiated and the hierarchical relationship between them. b)describe the safe closing and opening process of the barrier gate devices as shown on the plans and specifications. This shall include, but not be limited to interoperability of the following devices and conditions: - Barrier gate devices. - ABG controller. - Gate obstruction detection devices. - Electro-Mechanical Dynamic Sign. - Warning flashers. - System and device status display. - Emergency vehicle preemption management. - Local traffic signal coordination. - Loss of communications with ABG assembly. - Power loss to each subsystem. - Operation of ABG assembly from ABG control panel. c) Describe how the ABG assembly will respond to each subsystem failure as shown on the plans and specifications. This shall include, but not be limited to the devices and conditions listed in section 3(3). d) Describe how the ABG assembly will respond to obstructions blocking barrier gate device actuation both opening and closing as shown on the plans and specifications. e) Describe operator interfaces to actuate and monitor the ABG assembly. This shall include, but not limited to operation remotely at the TMC, through a dialup port to the TMC Master Controller computer, and on site. f) Describe security methods to prevent unauthorized system actuation. Systems Requirements Document (SRD). The Contractor awarded the bid shall submit to the Engineer the SRD within 60 days of approval of Operational Concept Document (OCD). The SRD shall include, but not be limited to all components that provide information to the ABG controller and all devices that the ABG controller has control over. The SRD shall contain the following minimum information:

14 Describe how gate closure/ opening procedure shall occur as shown on the plans and specifications. This shall include, but not be limited to the following: - How barrier gate obstructions shall be detected and system responses to them. - How the public shall be notified of the pending closure or opening as shown on the plans and specifications. - How the public shall be notified that the ramp is closed or opened as shown on the plans and specifications. - How the barrier gates shall sequence if more than one as shown on the plans and specifications. - Operation of system from ABG control panel. - Emergency vehicle preemption management. - Local traffic signal coordination. - How the operator will be notified of system failure and/or device failure as shown on the plans and specifications. - Provide for alternative systems operating strategies as shown on the plans and specifications. - Define the valid operating sequences and conditions to be allowed. - Define the redundant control methods of the control system. - How the operator at any of the possible operational sites shall be notified as to the status of the closure or opening operation as shown on the plans and specifications. - How the operator may disable or enable any ABG assembly devices and how the assembly will respond to them as shown on the plans and specifications. Shall describe requirements for devices, connectivity, software and hardware needed for the ABG assembly which shall include, but not be limited to the following: - ABG controller. - Barrier gate devices. - Sign flashers. Interface Control Document (ICD). The Contractor awarded the bid shall submit to the Engineer the ICD within 60 days of approval of Systems Requirements Document (SRD). The ICD shall include a complete description of the communication protocol used to communicate with the ABG assembly. The ICD shall describe the following: a) The communication protocol for the ABG and any associated maintenance software shall comply with a common open standard. b) Provide complete description of the protocol. c) Describe security protocols to prevent unauthorized system actuation. d) Include description of, but not be limited to the following:

15 e) System status messages, which shall include, but not be limited to the following: - Each barrier gate device status. - Each Electro-Mechanical Dynamic Sign. - Each flasher beacon status. - Each gate obstruction detection device status. - Emergency vehicle preemption actuation. - Local traffic signal coordination. - Any other device that the ABG controller receives input from or controls. - The ABG controller status. f) Disable or enable device commands. g) Open command. h) Close command. Software Design Document (SDD). After completion and acceptance of the OCD, SRD and ICD the Contractor shall provide to the Engineer a SDD for the ABG assembly for approval. The Contractor awarded the bid shall submit to the Engineer the SDD within 30 days of approval of the OCD, SRD and ICD. Fabrication and construction shall begin only after the OCD, SRD, ICD and SDD documents have been approved by the Engineer. The SDD shall include a complete description of all software to manage and operate the ABG assembly. The SDD shall describe the following: - Overview of operation. - Setup procedures. - Device control. - Gate obstruction detection device input. - Emergency vehicle preemption management. - Local traffic signal coordination. - Communications. - Define the system error and alarm conditions. - Minimize operator interface and decision requirements. - Security methods to prevent unauthorized system actuation. Controller Electrical Interface (CEI). The Contractor awarded the bid shall submit to the Engineer the CEI within 30 days of completion and acceptance of OCD, the SRD, and the ICD for review and approval. The CEI shall include, but not be limited to all components that describe the electrical connector interface between the ABG controller and the devices the controller controls and receives information from. The CEI shall contain the following minimum information: a) The ABG controller shall be connected to the ABG assembly through connectors which meet the following requirements: - The number of connectors shall not exceed five (5). - Each connector shall not exceed 57 pins each

16 - Each connector shall be keyed to prevent misconnection. - Each connector shall be rated to operate over a temperature range from - 1ºC to 74ºC (30ºF to 165ºF). - The connectors shall be separated such that pins with voltages less than or equal to 48 volts DC or AC shall not share the same connector as voltages that exceed 48 volts DC or AC. - The CEI shall define the function for each pin. Master Control and Diagnostic Software. Master Control software used in the TMC and diagnostic software used to maintain the ABG assembly which shall include, but not be limited to the following items: - Overview of operation. - Setup procedures. - Testing procedures. - Communications. - Failure modes and recovery procedures. - Security methods to prevent unauthorized system actuation. - Error logging and reporting. - System control theory. Each applicable equipment item or component shall be documented in a manual and submitted to the Engineer for approval. Final quality of manuals and software media shall equal quantity of items provided plus one additional copy. The manual shall reference OCD, SRD, ICD, SDD, and CEI when applicable and include the following information: 1. A general description of the equipment including all information necessary to describe the basic use or function of the system components. This shall include a general "block diagram" presentation of the equipment. Where auxiliary equipment is required, tabular charts shall be included, listing such equipment. These charts shall include the nomenclature, physical and electrical characteristics, and functions of the auxiliary equipment unless such information is contained elsewhere in an associated manual. In the latter case, a reference shall be made to the location of the information pertaining to the auxiliary equipment. 2. The theory of operation of the ABG assembly components in a clear, concise manner supported by simplified schematics, logic, data flow diagrams, onefunction diagrams, etc. Timing and waveform diagrams, and voltage levels shall be shown as required. A logical development shall be used starting with a system block level and proceeding to a circuit analysis. Circuit analysis shall be detailed whenever circuits are not normally found in standard textbooks. The application of new theoretical concepts shall be fully described. Where the design allows operation in a number of different modes, an operational description of each mode shall be included. 3. In simple, clear language, the routine of operation, from necessary preparations for placing the equipment into operation, to securing the equipment after

17 operation. This section shall contain appropriate illustrations, with the sequence of operations presented in tabular form wherever feasible. This section shall also contain a list of applicable test instruments, aids and tools required in the performance of necessary measurements and techniques of each system component. In addition, set-up test, and calibration procedures shall be described. 4. The manufacturer's recommended procedures and checks necessary for preventive maintenance. This shall be specified for pre-operation, weekly, monthly, quarterly, semi-annual, annual, and "as required" checks as necessary to assure reliable equipment operation. Specifications, including tolerances, for all electrical, mechanical, and other applicable measurement, adjustments, or both, shall be listed. Data necessary for isolation and repair of failures or malfunctions, assuming the maintenance technicians to be capable of analytical reasoning using the information in provided documentation. Accuracy, limits, and tolerances for all electrical, physical or other applicable measurements shall be described. General instructions shall be included for disassembly, overhaul, and reassembly, including shop specifications or performance requirements. Detailed instructions shall be given only where failure to follow special procedures would result in damage to the equipment, improper operation, danger to operating or maintenance personnel, consumption of excessive manhours, etc. Such instructions and specifications shall be included only for such maintenance as may be accomplished by specialized technicians and Engineers in a modern electro-mechanical shop. The instructions shall describe special test setup, component fabrication, and the use of special tools, jigs, and test equipment. 5. A detailed parts list including physical description of size, weight, special mounting requirements, electrical connections, and all other pertinent information necessary for proper installation and use of the equipment shall be provided. The parts list shall contain all information required to describe the characteristics of the individual parts, as required for identification. It shall include a list of all equipment within a group and list of all assemblies, subassemblies, and replacement parts of units. The tabular arrangement shall be in alphanumerical order of the schematic reference symbols and shall give the associated description, manufacturer's name, and part number. A table of contents or some other convenient means, e.g., appropriate grouping, shall be provided for the purpose of identifying major components, assemblies, etc. 6. Schematic diagrams shall be complete and accurate as required to supplement the text material and to allow the books to be a self-contained technical information source. Maximum size of these diagrams should be limited to allow their use in close proximity of the equipment, in the classroom, etc., part reference symbols, test voltages, waveforms, and other aids to understanding of

18 the circuit's function shall be included on the diagrams. Test voltages, waveforms, and other aids to understanding of the circuit's function may be shown on either the simplified schematics and other drawings (as required in the above sections) on theory of operation or maintenance or on the schematic diagrams required for this section. The overall scope of information shall not be less, however, than that stated for the schematic diagrams The Contractor shall provide manuals and data for the computer software system and components thereof. These shall include, but are not limited to, the following: Computer programmer's manuals and computer user's manuals. Include manuals for any language for the CPU used by the Contractor for this project. Include instructions for performing a backup of all software and message libraries. Computer's operating system manual and compiler and assembly language manuals and an instruction manual for translating source to object code. Manufacturer's documentation (including schematics) for all plug in circuit cards used in the microcomputer chassis. Computer program logic in flowchart form. Narrative descriptions of programs and input/output formats. Source programs shall be provided on 3-1/2 inch disk(s) or CD-ROM. An unrestricted license for software use shall be provided to the Department. Contractor shall provide the Gate Master Controller source code and communication protocol for use by the Department without any restrictions. Final documentation shall reflect all field changes and software modifications and shall be provided before installation. Final documentation shall be approved prior to final system acceptance has begun. This documentation shall include drawings of conduit layouts, cable diagrams, wiring lists, cabinet layouts, wiring diagrams and schematics for all elements of the communications system. This shall also include detailed drawings identifying by cable type, color code and function, the routing of all conductors (pairs) in the communications system. Upon completion of the installation, the Contractor shall submit these plans, maps, and/or drawings to reflect an as-built condition, incorporating all changes made during installation, such as in pair identification and routing. (d) Warranty. Warranty for the ABG assembly shall comply with Special Specification Item, "Testing, Training, Documentation and Warranty"

19 4. Measurement. The ABG Arm, of the various lengths shown on the plans, will be measured as each unit furnished, installed, made fully operational and tested and in accordance with these Special Specifications. The ABG housing and component equipment will be measured as each unit furnished, installed, made fully operational, tested, and training provided in accordance with these Special Specifications. The ABG controller will be measured as each unit furnished, installed, made fully operational, tested, documentation provided, and training in accordance with these Special Specifications. The ABG Software will be measured as each licensed software unit furnished, installed, made fully operational, tested, documentation provided, and training in accordance with these Special Specifications. The ABG pushbutton control panel will be measured as each unit furnished, installed, made fully operational, tested, documentation provided, and training in accordance with these Special Specifications. 5. Payment. The work performed and materials furnished in accordance with this Item and measured as provided under "Measurement" will be paid for at the unit price bid for "ABG Arm (of the various lengths)", "ABG Housing", ABG Controller, "ABG Software", and ABG Subsystem Control Panel. This price shall be full compensation for all equipment described under this Item with all cables and connectors; operational software license(s), supplies, integration, support, personnel training, shop drawings; all documentation, testing, and furnishing all labor, materials, and equipment necessary to complete the work