956DETECTORS

956.1DESCRIPTION —This work is the furnishing and installation of devices to sense the presence or

passage of vehicles or pedestrians.

956.2MATERIAL—

• Traffic Signals-General. Section 950.2.

• Certification. Section 106.03(b)3.

• Luminaire Arms. Section 910.2.

sensor and as follows:

• Number of Components. One or two.

• Application Temperature. 32F to 100F, unless otherwise specified by manufacturer.

• Tack Free. 1-hour maximum.

• Maximum Curing Time. 30 hours.

• Permanent Flexibility. To -20F.

• Chemically Resistant To: De-Icing Chemicals, Gasoline, Calcium Chloride (5%), Motor Oils, and Hydraulic Brake Fluid.

3.a. Power Supply. Furnish a switching-type power supply and as follows:

• Input Voltage. 95 V to 135 V (ac), 57 Hz to 63 Hz.

• Output Voltage. 24 V ± 0.3 V (dc).

• Minimum Output Voltage. 22.8 V (dc).

• Efficiency. 70% minimum.

• Full Load Current. 3 A minimum.

• Line Regulation. 0.1% over entire input range.

• Load Regulation. 0.2% from no load to full load.

• Ripple Noise. 40 mV (p-p) typical, 75 mV (p-p) at full load.

• Environmental. NEMA TS 1, Part 2.

Provide a front panel incorporating a pilot lamp, test points for monitoring output voltage, and a circuit breaker or fuse. Ground all exterior metal surfaces to the chassis safety ground.

3.b. Card Rack. A standard EIA, 19 -inch rack for mounting the detector amplifier units, as follows:

• Aluminum front rails drilled and tapped (10-32), with EIA spacing.

• Aluminum chassis supporting angles, 10 inches deep and 3 -inches wide, for mounting on the sides of the controller cabinet.

• Aluminum connector panels, with connector mounting holes, tapped (4-40) on 0.200 -inch centers, then mounted to form a cage 19 inches wide, 5 1/4 -inches high, and 6 1/2-inches deep.

• Nonmetallic guides and Cinch-Jones No. 50- 44A-30M rear connectors, mounted at 1.200 inch spacings.

compound. Provide an appropriate size to accommodate in- line, wye, “x,” butt, and dead -end splicing of cables rated at 1000 V or less, with outside diameters from 0.25 inch through 2.50 inches. Supply with the following components:

• Two-part transparent mold body of PVC construction, with tongue- and-groove seams and built -in spacer web.

• Two flexible end caps, each with double-stepped cable entry ports to accommodate the many possible splicing configurations.

• Snap-in caps to cap off the fill ports, after compound pouring.

• Strain bars with insulator sleeves.

• Four shield connectors to provide shield continuity, with strain bars for shielded cables.

• Stainless steel base clamps to secure splice body, end caps, and strain bars.

• Re-enterable electrical insulation and sealing compound, capable of continuous operation at 194F, with an emergency overload temperature rating at 266F, a viscosity of approximately 1,100 centipoise at 79F, a gel time of approximately 20 minutes at 73F, and zero growth fungus resistance, according to ASTM G21.

• An instruction booklet, showing proper installation and re-entry techniques.

1.a. Loop Sensor. 14 AWG minimum conforming to IMSA Specification 51- 5. Prefabricated loop and lead- in assembly with wire insulation and cable jackets constructed of Cross -linked Polyethylene (XLPE). Polyethylene backer rod.

1.b. Loop Amplifier, Shelf- Mounted. Self-tuning, loop amplifier, shelf -mounted, enclosed in a shock-proof housing with relay output and one or two channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed, conforming to NEMA TS 1, Section 7. Loop

amplifier must be capable of displaying the loop frequency, change of inductance, and call strength when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD.

1.c. Loop Amplifier with Timers, Shelf -Mounted. Self -tuning, loop amplifier, shelf -mounted enclosed in a shock-proof housing with relay output and one or two channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed conforming to NEMA TS 1, Section

when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD. Unit must have delay and extension timers for each channel.

1.d. Loop Amplifier with Timers, Shelf- Mounted, Count Output. Self-tuning, loop amplifier, shelf-mounted enclosed in a shock -proof housing with relay output and one or two channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed conforming to NEMA TS 1, Section 11. Loop amplifier must be capable of displaying the loop frequency, change of inductance, and call strength when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD. Unit must be able to count a standard licensed vehicle entering a loop while other standard licensed vehicles occupy loop. Primary output - Normal detector output with delay and extension timers. Count output - Provides an individual pulse output for each vehicle on the same loop at the same time. Unit to have delay and extension timers for each channel. Unit to have three selectable modes per channel: pulse, presence, and count.

1.e. Loop Amplifier, Rack-Mounted. Self-tuning, loop amplifier, mounted on an edge-connected, printed circuit board with an electrically isolated solid- state output and two or four channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed conforming to NEMA TS 1, Section 7. Loop amplifier must be capable of displaying the loop frequency, change of inductance, and call strength when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD.

1.f. Loop Amplifier with Timers, Rack -Mounted. Self-tuning, loop amplifier, mounted on an edge-connected, printed circuit board with an electrically isolated solid-state output and two or four channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed conforming to NEMA TS 1, Section 11. Loop amplifier must be capable of displaying the loop frequency, change of inductance, and call strength when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD. Unit to have delay and extension timers for each channel.

1.g. Loop Amplifier with Timers, Rack -Mounted, Count Output. Self-tuning, loop amplifier, mounted on an edge-connected, printed circuit board with an electrically isolated solid-state output and two or four channels as indicated, allowing for the operation as indicated in addition to a pulse vehicle output when directed conforming to NEMA TS 1, Section 11. Loop amplifier must be capable of displaying the loop frequency, change of inductance, and call strength when a vehicle is present. All indications and operational settings must be clearly visible via LEDs or on a backlit LCD. Unit must be able to count a standard licensed vehicle entering a loop while other standard licensed vehicles occupy loop. Unit to have delay and extension timers for each channel. Unit to have three selectable modes per channel: pulse, presence, and count.

2.a. Video Detector. Provide video detection that meets FCC Title 47, Part 15 Class A & B, IEC 61000-4-4, IEC 60000-4-5, and NEMA TS-2 Environmental, Terminals & Facilities, and Auxiliary Devices Standards. Provide a model approved by the Representative, that is IP/Ethernet enabled for communications (IPv4/v6) on IP networks as indicated and as follows: Provide all equipment, power supplies, surge protection, communication interface panel, connections, cables, cards/racks, software, mounting hardware, etc. as necessary to provide a fully functional vehicular video

detector capable of detecting vehicles in the zones as indicated. Remove or disable all video recording capabilities. All units must have an Ethernet port, serial datalink communication link (SDLC) port, and be enabled for communications on IP networks. Provide cabling, coaxial, 18 AWG 3 conductor wire conforming to IMSA Specification 19-1 or 20-1, or Cat5e/6 cables, as recommended by the Manufacturer. If Cat5e/6 is used, provide shielded outdoor rated Category 5e/6 100BASE-TX Ethernet cable. The jacket is to be UV resistant polyethylene and contain water blocking gel or waterproof tape for water resistance. Provide weathertight RJ45 connectors on any exposed ends.

Cat5e/6 cable must meet the following requirements:

Table 1 Cat5e/6 Cable Requirements Category 5e Category 6 Frequency 100 MHz 250 MHz Attenuation 24 dB (Min. at 100 MHz) 36 dB (Min. at 250 MHz) Characteristic Impedance 100 ohms ± 15% 115 ohms ± 15% NEXT 35.3 dB (Min. at 100 MHz) 38.3 dB (Min. at 250 MHz) PS-NEXT 32.3 dB (Min. at 100 MHz) 36.3 dB (Min. at 250 MHz) ELFEXT 23.8 dB (Min. at 100 MHz) 19.8 dB (Min. at 250 MHz) PS-ELFEXT 20.8 dB (Min. at 100 MHz) 16.8 dB (Min. at 250 MHz) Return Loss 19 dB (Min. at 100 MHz) 15.6 dB (Min. at 250 MHz) Delay Skew 45 ns (Max. per 100 m) 45 ns (Max. per 100 m)

As necessary, provide multiple units per approach if multiple zones are required and a single unit cannot provide adequate coverage. Adjust and realign the video detector and detection zone(s) as directed by the Representative to achieve the required operations during the 30-day intersection test at no additional cost to the Department. The video detector must be capable of being programmed and updated from a laptop computer. Provide video software that uses the most current version of Microsoft Windows operating system. Provide all software installation disks for the video software to the municipality and provide and install software updates for 1 year after acceptance by the Department. Manufacturer’s representative is to be on-site for initial detector setup. Provide contrast loss detectors that monitor the quality of the video image that is being processed. Fail-safe mode sends outputs to traffic controller. Vehicle presence detection accuracy of 95% minimum.

2.a.1. Video Camera Lens.

• Continuous focus zoom

• Integrated color camera.

• H.264, MPEG-4 video, NTSC

• Minimum 2X zoom and provide adequate camera lens for the manufacturer’s recommended field of view angle to completely cover the detection zone(s) as indicated.

• Provide normal video compression techniques to produce near live video image of five frames per second minimum.

2.a.2. Housing and Sunshield.

• Sealed waterproof, dust-tight NEMA-4 housing.

• Provide Sunshield for each detector.

2.a.3. Environmental.

• Capable of operating during all hours and under all weather conditions.

• Temperature -29F to 140F.

• Relative Humidity 0% to 95%, non-condensing.

2.a.4. Communication.

• Video vehicle detector sensor must include a minimum of one serial or Ethernet communications interface.

• All wireless communication must be secure.

• Wireless devices must be FCC certified and FCC identification number must be displayed on an external label.

• All detectors must operate within their FCC frequency allocation.

2.a.5. Electrical.

• Power is to be provided from the traffic controller cabinet and is to be compatible with 2070, NEMA TS1, NEMA TS2, ATC cabinets.

• Surge protection devices as recommended by the manufacturer are to be included both in the sensor and in the traffic cabinet to protect the cabinet electronics. Sensor will automatically recover from a power failure after resumption of normal power.

2.a.6. Cables and Mounting Hardware.

• According to manufacturer’s recommendations.

2.a.7. Detection Zones.

• Minimum of four separate detection zones per camera and capable of detecting vehicles in multiple lanes.

• Capable of determining which direction of travel, presence calling, pulse calling, delay, extension, sensitivity settings, and channel output.

2.b. Video Detector with Internal Heater. As specified in Section 956.2(c)2.a, and as follows: Provide an internal heater capable of heating the camera lens to allow for continued detection operations and clear lens during snow; ice; and below freezing, 32F, weather conditions.

2.c. Thermal Video Detector. As specified in Section 956.2(c)2.a and as follows: Provide a thermal sensor that utilizes Vanadium Oxide uncooled focal plane arrays microbolometer detection technology to detect heat signatures. The minimum spectral detection range must be 8 to 13 microns. Provide video detection with an internal heater capable of heating the camera lens to allow for continued detection operations and clear lens during snow; ice; and below freezing, 32F, weather conditions. Thermal sensor detection shall be capable of delay and extend vehicle calls.

2.d. Omni-View Video Detector System. An Omni-view video detector(s) that utilizes a 360- degree lens to track, detect, classify, and count pedestrians, bicycles, and motor vehicles for the entire intersection as indicated. A detector system that is IP/Ethernet enabled for communications (IPv4/v6) on IP networks and provides an internet interface over the cloud to view and adjust detection zones. The Omni-view Video Detector system must have the capabilities to provide outputs of the count data as well as advanced signal performance metrics. Provide counting and reporting of advance d signal performance metrics as indicated. The detector system must have the capability, whether in-house or third party compatible, to collect and report WiFi Mac Address travel time and origin- destination data. The WiFi Mac Address processor must scramble the incoming data to provide anonymous data securely and a have a minimum 10% capture rate. Provide WiFi travel time processor/package add-on as indicated. The camera must have high definition-color resolution output with minimum 2560x1920 pixels and provide horizon to horizon view, including center of intersection. Provide camera(s), processor, boosters, repeaters, software and all mounting hardware, cables and wiring, and any additional equipment recommended by the manufacturer to provide vehicular detection for all locations as indicated. Luminaires are a separate pay item. Video detection cameras as specified in S ections 956.2(c)2.a through 956.2(c)2.c may be utilized to supplement limitations of the omni -view video detector as indicated and approved by the District Traffic Engineer. Provide supplemental video detection as indicated. Ground and provide surge protection to all components as recommended by the manufacturer. Processor and camera must be by the same manufacturer where the processor mounting must be compatible with the signal controller cabinet. Provide applicable software and provide one day of training to Department personnel, municipal personnel, municipal consultant engineers and municipal maintenance providers on the setup, operation, and maintenance of the system. Provide software updates to the processors and video detector(s) for the life of the equipment at no additional cost to the Department or the Municipality if detection system is connected to the internet. For installation without internet connection, provide software updates for 1 year after acceptance by the Department. The Omni-View video detector system must be vision-based tracking allowing the system to track bicycles, pedestrians, cars, trucks, and motorcycles through the intersection.

• Capable of operating during all hours and must be weather sealed to prevent water and moisture damage. IP66 and IP67 rated.

• Operating Temperature Range of -29F to 140F and Relative Humidity 0% to 95%.

• Detection must have Delay/Extend function.

• The system must be capable of having a minimum of 48 detection zones and be able to be adjusted via the cloud through an internet connection.

• The detector must resort to hyperactivity, place call for all phases, during failure events.

• Internal heater capable of heating the camera lens to allow for continued detection operations and clear lens during snow; ice; and below freezing, 32F, weather conditions.

2.e. Monitor and Keyboard/Mouse for Video Detection. Provide one 7-inch monitor and integrated Universal Serial Bus ( USB) keyboard/mouse. The keyboard must have key spacing (center to center) of 0.75 inches with a minimum 84 keys. The monitor and keyboard/mouse must allow full monitoring and configuration of the video detection system. The monitor must have a minimum resolution of 1024 x 768. Upon final configuration of the video detection system, place the monitor and keyboard/mouse in the controller cabinet at an intersection directed by the District Traffic Engineer. Provide all cables and connectors necessary to connect a video monitor and keyboard to the vehicle video detection at the controller cabinet. All equipment must be fully compatible and interfaced with the detectors. The monitor and keyboard must be able to setup the detection zones and verify if the detectors are working correctly. Install equipment at the location as indicated.

2.f. Video Detection System. As specified in Sections 956.2(c)2.a through 956.2(c)2.e that meets

the video detection and detection zones requirements of the entire intersection as indicated. Provide all equipment, power supplies, communication interface panel, connections, cables, cards/racks, software, mounting hardware, etc. as necessary to provide a fully functional video detection system capable of detecting vehicles for all locations in the zones as indicated. As necessary, provide multiple units per approach if multiple zones are required and a single unit cannot provide adequate coverage.

3.a. Radar Detector. Provide radar detection conforming to FCC Title 47, Part 15 Class A & B, IEC 61000-4-4, IEC 60000-4-5, and NEMA TS-2 Environmental, Terminals & Facilities, and Auxiliary Devices Standards. Provide an approved model, that is IP/Ethernet enabled for communications (IPv4/v6) on IP networks as indicated and as follows: Provide all equipment, power supplies, surge protection, communication interface panel, connections, cables, cards/racks, software, mounting hardware, etc. as necessary to provide a fully functional vehicular radar detector capable of detecting vehicles in the zones as indicated. Provide shielded outdoor rated Category 5e/6 100BASE -TX Ethernet cable as specified in Section 956.2(c)2.a. The radar detector must have a method for automatically calibrating the detection device; this method will be executed in the radar detector’s internal processor. This auto-calibration method must automatically determine detection thresholds. Adjust and realign the radar detector and detection zone(s) as directed to achieve the required operations during the 30-day intersection test at no additional cost to the Department. The sensor must be capable of being programmed and updated from a laptop computer. Provide radar software that uses the most current version of Microsoft Windows operating system. Provide all software installation disks for the radar software to the municipality and provi de and install software updates for 1 year after acceptance by the Department. Manufacturer’s representative is to be on-site for initial detector setup. The input file card must also provide failsafe operation, so that if failure of communication from the sensor occurs, a constant call must be placed on all contact closure channels. Provide the type of radar detection as indicated.

• Stop-Bar Detection must be non-intrusive and detect vehicles from 6 feet up to 140 feet. Detection must provide real-time presence data for intersection control, cover multiple lanes per approach, and track vehicles entering the intersection. The sensor is to be mounted in a forward fire and/or side-fire position. Provide detection zones that only detect vehicles in one direction. Each detector is to be capable of providing system detectors for the approach.

• Advanced Detection is to be non-intrusive and detect vehicles from 6 feet up to a minimum of 450 feet. Detection must track the speed and range of all vehicles as they approach the stop bar and calculate on a continuous basis, whether dynamically tracking the speed or assuming the entrance speed over time, which vehicles are within the predetermined dilemma zone and place a call to the controller. Detection must be capable of identifying gaps within the dilemma zone, so the corresponding phase call will be dropped, and the phase safely terminated.

3.a.1. Housing.

• Sealed, waterproof, dust-tight NEMA-4 housing.

3.a.2. Environmental.

• Capable of operating during all hours and under all weather conditions. IP66 and IP67 rated.

• Operate without degradation in performance under temperature range of -40F to 165F and relative humidity 0% to 95%, non-condensing, without auxiliary heating or cooling.

3.a.3. Communication.

• Radar vehicle detector sensor must include a minimum of one SDLC and Ethernet communications interface.

• All wireless communication must be secure.

• Wireless devices must be FCC certified and FCC identification number must be displayed on an external label.

• All detectors must operate within their FCC frequency allocation.

3.a.4. Electrical.

• Power is to be provided from the traffic controller cabinet and is to be compatible with 2070, NEMA TS1, NEMA TS2, ATC cabinets.

• Operating frequency: 10.525 GHz ±25 megahertz or another FCC approved spectral band.

• Must comply with limits of a Class A digital device pursuant to part 15 of the FCC rules or the appropriate spectrum management authority and must not interfere with any adjacent equipment.

• Power: 89 – 135 V(ac), 15W.

• Radiated energy must not exceed 10 milliwatts.

• Relay contacts: Form C, rated at 5 amps.

• Surge protection devices as recommended by the manufacturer are to be included both in the sensor and in the traffic cabinet to protect the cabinet electronics. Sensor will automatically recover from a power failure after resumption of normal power.

3.b. Radar Detection System. As specified in Section 956.2(c)3.a and as follows: Provide all equipment, power supplies, communication interface panel, connections, cables, cards/racks, software, mounting hardware, etc. as necessary to provide a fully functional radar detection system capable of detecting vehicles for all locations in the zones as indicated. As necessary, provide multiple units per approach if multiple zones are required and a single unit cannot provide adequate coverage.

equipment must be compatible with all the video or radar detector(s) utilized within the system as well as with the controller. Any change in detection from the indicated type requires approval from the District Traffic Engineer. The system must meet the video detection and video detection zone requirements as specified in Sections 956.2(c)2.a through 956.2(c)2.e and meet the radar detection and radar detection zone requirements as specified in Sections 956.2(c)3.a and b.

5.a. Magnetometer Sensor. As indicated and as follows:

• Physical Size. Cylindrical housing, nonferrous, moisture-proof, suitable for direct burial in roadway pavement, with no damage because of subsurface stresses, and with a lead-in cable of proper length for hookup.

• Operational. No moving parts and compatible with the magnetometer detector amplifiers furnished.

5.b. Magnetometer Amplifier, Shelf-Mounted. Enclosed in a shock-proof housing and as follows:

• Operation. Solid-state design with two independent detection channels in each unit, designed so the sensing element of one channel has no effect on the other.

• Bimodal—Pulse mode. Provides an output closure of 125 ms ± 25 ms duration for each vehicle entering the detection area.

• Bimodal—Presence mode. Continually indicates the presence of a vehicle, until the vehicle leaves the area of detection, at which time the indication is to cease within 100 ms.

• Sensing Elements. One to six magnetometer sensors per channel capability at a distance of up to 3,000 feet between sensor and amplifier.

• Indicators and Switches. Provide on front panel: an LED indicator, sensitive to vehicle detection; fused or circuit breaker overcurrent protection; mode switch, calibration controls; and switch or switch position per channel for disabling the output of a channel and placing a call on a channel.

• Output—Optically isolated Darlington. An opto-isolated, NPN open collector capable of sinking 50 mA at 30 V (dc).

• Connector. MS-3106A20-29P, 17-pin connector with the following pin assignments:

Table 2 17-pin Connector Pin Assignment Channel 1 Channel 2 White D T Black E N Probe Sets Red P J Green R S Common (-) B K Output Detect (+) G M Neutral A ac Power High C Chassis Ground H

• Power Requirements. Maximum 11 VA at 105 V to 125 V (ac), 57 Hz to 63 Hz without originating, nor being susceptible to, electrical transients in excess of the NEMA, TS 1, Section 2.

• Environment. NEMA TS 1, Section 2.

5.c. Magnetometer Amplifier, Rack- Mounted. Mounted on an edge connected, printed circuit board for rack-mounting and as follows:

• Physical. Provide a hand pull to facilitate insertion and removal from the rack.

• Operation. Section 956.2(c)5.b

• Modes. Section 956.2(c)5.b

• Sensing Elements. Section 956.2(c)5.b

• Indicators and Switches. Section 956.2(c)5.b excluding overcurrent protection.

• Output. Section 956.2(c)5.b

• Connector. Cinch Jones Number 50- 40-A-30M, 22- pin edge connector, with the following pin assignments:

Pin Function

A dc Ground B +24 V (dc) C Reset D Sensing Element #1 Input E Sensing Element #1 Input F Control Unit Output #1 (Collector) H Control Unit Output #1 (Emitter) J Sensing Element #1 Excitation K Sensing Element #1 Excitation L Equipment Ground M Reserved N Reserved P Sensing Element #2 R Sensing Element #2 S Control Unit Output #2 (Collector) T Control Unit Output #2 (Emitter) U Sensing Element #2 Excitation V Sensing Element #2 Excitation W NA X NA Y NA Z NA

Connector. Slotted for keying (Between Pins B&C and Pins M&N).

• Power Requirements. Maximum current 300 mA from 33 V to 28 V (dc).

• Environmental. NEMA TS 1, Section 2.

6.a. Magnetic Sensor.

• Physical. Cylindrical case, nonferrous, moisture-proof, suitable for burial within rigid nonmetallic conduit, and with a lead-in of sufficient length.

• Operation. No moving parts and compatible with the magnetic-detector amplifier furnished.

6.b. Magnetic Amplifier, Shelf-Mounted. Shelf-mounted, enclosed in a shock-proof housing, and as follows:

• Operation. Solid-state design, with one channel in each unit.

• Sensing Elements. One or more magnetic sensor capability at a distance of up to 1,000 feet between the sensor and amplifier.

• Indicators and Switches. Provide on front panel: indicator for detection of a vehicle, fused or circuit breaker overcurrent protection, calibration controls, and a switch or switch position for disabling the output and placing a call.

• Output. Section 956.2(c)5.b

• Connector. Relay output. MS3106A-18-1S, Solid-State (Isolated) - MS3106A-8-15W.

• Power Requirements. Maximum power consumption of 2 W at 120 V (ac) and 60 Hz.

• Environmental. NEMA TS l, Section 2.

6.c. Magnetic Amplifier, Rack-Mounted. Mounted on an edge-connected, printed circuit board for rack-mounting and as follows:

• Physical. With a hand pull to facilitate insertion and removal from the rack. The four -channel, magnetic-detector amplifier in the front panel space of two, two-channel magnetic-detector amplifiers.

• Operation. Solid-state design with two or four independent detection channels in each unit, as indicated, designed that the sensing element of one channel has no effect on the other.

• Sensing Element. One or more magnetic sensors per channel, capable of sensing at a distance of up to 1,000 feet between the sensor and amplifier.

• Indicators and Switches. Section 956.2(c)5.b excluding overcurrent protection.

• Output. Section 956.2(c)5.b.

• Connector. Cinch-Jones Number 50- 40-A-30M, 22- pin edge connector, with the following pin assignments:

Pin Function

A dc Ground B +24 V (dc) C Not Connected D Detector #1 Element E Detector #1 Element F Detector #1 Output (C) H Detector #1 Output (E) J Detector #2 Element K Detector #2 Element L Chassis Ground M Reserved N Reserved R Detector #3 Element S Detector #3 Output (C) T Detector #3 Output (E) U Detector #4 Element V Detector #4 Element W Detector #2 Output (C) X Detector #2 Output (E) Y Detector #4 Output (C) Z Detector # 4 Output (E)

Connector. Slotted for keying (C)—Collector (E)—Emitter

• Power Requirements. Maximum of 60 mA per channel from a 24 V (dc) power supply.

• Environmental. NEMA TS 1, Section 2.

6.d. Rigid, Nonmetallic Conduit. Section 954.2(b)

(d). Pedestrian Detection.

follows:

• General. Furnish a tamper and weatherproof assembly with pushbutton contacts, entirely insulated from the housing and buttons. Use a pushbutton with 2-inch diameter +/- 0.1-inch, audio signal actuation confirmation, Americans with Disabilities Act (ADA) compliant, 303 or 316 stainless steel non- moving pushbutton and a maximum force of 5 pounds. Furnish sign and mounting assembly as indicated. Conform to the regulations for the sign legend and as specified in Section 1103.04 for the fabrication. Use stainless steel tamper resistant hardware to mount the pushbutton assembly.

• Housing. Die-cast aluminum alloy housing, with a curved back or a flat back as required to conform to the mounting surface. Powder coat the assembly highway yellow, as specified in Section 955.2(b)1. Provide a rear cable entry.

• Electrical. Provide a solid-state switch mechanism consisting of a direct push- type button, with a piezo driven switch, contacts rated at 10 A minimum, 125 V (ac) for operation at 24 V (dc) with an operating life of greater than 100 million operations.

• Latching LED. provide light emitting diode (LED) light with luminous intensity greater than 1200 mcd in ultra -bright red color and a viewing angle of 160 degrees that activities only during non- walk phases upon pedestrian actuation and stays on until the beginning of the walk phase. Include latching push button isolator card suitable for NEMA or 2070 style controller cabinet, 120 V (ac) or 24 V (dc), capable of managing four phases and 16 push buttons.

requirements and the following:

• Functionality. MUTCD.

• Temperature and Humidity. NEMA TS 2.

• Transient Voltage Protection. IEC 61000-4-4, IEC 60000-4-5.

• Transient Suppression. NEMA TS 2.

• Electronic Noise. FCC Title 47, Part 15 Class A & B.

• Mechanical Shock. NEMA TS 2.

• Vibration. NEMA TS 2.

• PBS Enclosure. NEMA 250. Type 4x.

• Central Control Unit. NEMA 250. Type 1.

• Electrical Reliability. NEMA TS 4.

• Bluetooth Specifications. Bluetooth Special Interest Group (SIG).

2.a. Pedestrian Pushbutton and Station.

• Pole Base Station: Cast aluminum, powder coated.

• Sign: MUTCD, Publication 236, and as indicated.

• Pushbutton: ADA compliant, aluminum or stainless steel, powder coated, with vibrotactile arrow. For exclusive pedestrian phases, provide either no arrow or bi-directional arrow as indicated.

• LED Operation: Latching LED lights when the button is pushed and remains lit until the next walk phase as specified in Section 956.2(d)1.

• Operating life: Greater than 100 million operations.

• The button must be designed so that it cannot be made to "stick on".

• The button must "move" when pressed.

• All sounds must automatically adjust to ambient noise levels.

• The type of WALK indication as specified (tone or speech).

• The button must be capable of the “extended button press” function.

• The pushbutton unit or sign must have the street name in Braille or raised print when indicated.

• The system must be 2-wire, 3-wire, or 4-wire as indicated.

• The system must have no sharp edges.

• All hardware is to be stainless steel.

2.b. Central Control Unit.

• Audio File Updates: via Ethernet or Bluetooth connection.

• Ethernet Interface: 10/100BASE-T, server built in with password protection.

connectors, and cables as specified by manufacturer, to provide a functional system. Provide optical detector(s) responsive at a minimum distance of 500 feet. Arrange for demonstration, as directed.

all necessary controller unit connectors, panel wiring, and miscellaneous hardware needed with the control cabinet. Provide field confirmation of detection at a minimum distance of 500 feet. Certify that no false detection can occur. Arrange for demonstration, as directed.

feet radio range at intersections as indicated, to gain preemption or priority. Provide all hardware and software necessary to provide a functional GPS -Based Preemption System with secure radio communications. Arrange for demonstration, as directed.

signal or traffic signal system as specified in Sections 1210.2(b) and 1210.2(c).

956.3CONSTRUCTION—Section 950.3, as shown on the Standard Drawings, and as follows:

If replacing existing detection, remove any other non-obtrusive conflicting detectors or detection system, including bracket hardware and wiring as directed. Plug or patch any holes not being used where existing detection hardware was removed in a suitable manner as approved.

standard construction drawing. Rotary drill a hole for the conduit at curb. Ensure the slot and hole are free of moisture and debris. Install the conduit. Install the number of turns of wire for each loop detector at a minimum as shown on the Standard Drawings and according to the manufacturer’s recommendations to obtain the inductance required to achieve proper operation, without splices, kinks, or curls, and without straining or stretching around the corners of the slot. Use a blunt nonmetallic tool to seat the sensor in the bottom of the slot. Check for slack, raised portions, and tightness. Correct if necessary. Install backer rod that tightly fits into the slot to prevent the loop sensor from rising. Insert the two leads from the loop, twisted together a minimum of 3 turns per foot, in the conduit leading to the junction box. Test leakage resistance, series resistance, and inductance before sealing the sawcut slot. Leakage resistance greater than 10 megohms is necessary when tested at 375 V(dc) minimum. Series resistance is not to exceed 2.6 ohms per 1,000 feet. Inductance is to be between 50 microhenries and 700 microhenries. Seal the conduit with duct seal. Seal the hole and slots with sealant, according to the manufacturer's instructions. Do not apply the sealant if the air temperature is below 32F, unless otherwise specified by manufacturer , or during precipitation. Fill the slot to within 1/8-inch of the pavement surface and ensure that there are no voids. Do not allow traffic on the slot until the sealant is cured. Remove excess sealant from adjacent road surfaces, but do not use solvents. When resurfacing occurs over any area of loop sensor , install the sensor in the existing pavement structure or in the binder course before placement of the wearing course. Do not install the top course of pavement before the sealant is cured. Splice the sensor wires to the lead- in cable as shown on the Standard Drawings . Encapsulate the splice with sealant to prevent water from penetrating the splice. Connect the sensor to each lead-in pair, as indicated. Band all excess loop sensor/lead- in cable in the junction box to prevent movement resulting in false calls. Extend the lead-in cable to the terminal strip in the controller cabinet, without splices. Measure inductance of loop and lead-in. Inductance is to be between 50 microhenries and 700 microhenries. Place a record of the inductance readings in the controller cabinet. Connect to the loop detector amplifier. Adjust the amplifier, according to the manufacturer's recommendations, to obtain the necessary sensitivity. Provide field validation that the detector equipment is properly working.

of detection, counting, and operation as indicated without detecting conflicting movements. Install risers and luminaire arms as directed. Secure detectors using mounting brackets as required by the manufacturer. Adjust and realign video detector as necessary to obtain optimal field of view and required detection zones. Provide video cameras to process vehicle presence, pulse, passage, and system detector zones as indicated. Relocation and calibration of video cameras, conduit, and cable required for detecting presence, pulse, passage, and system zones are incidental to the cost of this item. Connect detector outputs to appropriate controller phases as indicated in the phasing, timing and color sequence chart. Draw detection zones as indicated. Provide appropriate grounding and surge protection. Remove any conflicting detector(s) or detection system and associated wiring. Provide service technician from the supplier of the video detector equipment during the turn-on. For applications that require remote monitoring of the traffic signal video, provide a reduced frame rate connection. Transmit remote monitoring of the video at the direction of the District Traffic Engineer or as indicated. Equip intersection with a remote connection as indicated. If detection is connected to the internet or network, obtain IP addresses from the District Traffic Engineer or Central Office IT . Compress images before transmitting and adjust frame rates to meet the bandwidth requirements. Provide all material, support, and coordination necessary to ensure the remote video access is functioning properly and providing real time video to the required locations. Provide field validation that the detector equipment is properly working.

If applicable, install monitor and keyboard/mouse in the controller cabinet with the appropriate cabling and connections to the video detector(s).

recommendations to provide area(s) of detection and operation as indicated without detecting conflicting movements. Install detectors on traffic signal supports or luminaire arms as necessary for proper operation. Secure detectors using mounting brackets according to the manufacturer's recommendations . Adjust and realign detectors as necessary to obtain optimal field of view and required detection zones. Provide detectors to process vehicle presence, pulse, passage, and system detector zones as indicated. Connect detector outputs to appropriate controller phases as indicated in the phasing, timing and color sequence chart. Draw detection zones as indicated. Provide appropriate grounding and surge protection. Remove any conflicting detector(s) or detection system and associated wiring. Provide service technician from the supplier of the video detector equipment during the turn-on. Equip intersection with a remote connection as indicated. If detection is connected to the internet or network, obtain IP addresses from the District Traffic Engineer, or Central Office IT. Provide all material, support, and coordination necessary to ensure the remote access is functioning properly. Provide field validation that the detector equipment is properly working.

earth’s magnetic flux at the point of installation is sufficient for the detector to operate. Rotary drill a hole in the pavement for the sensor. Saw cut slots for the lead, as indicated. Rotary drill a hole for the conduit at curb. Ensure the holes and slot are free of moisture and debris. Install the conduit. Insert the sensor vertically in the hole. Then insert the lead wire in the slot and in the conduit leading to the junction box. Use a blunt nonmetallic tool to seat the wires in the bottom of the slot. Test leakage resistance and series resistance. Leakage resistance greater than 10 megohms is necessary. Series resistance is not to exceed 2.6 ohms per 1,000 feet. Backfill the sensor hole, then seal the holes and slot with sealant, according to the manufacturer's instructions. Do not apply the sealant if the air temperature is below 32F, or during precipitation. Complete the installation for the magnetometer detector, as specified in Section 956.3(a)1.

from the junction box to a point approximately 2 feet beyond the centerline of the detection zone. Bore a diameter only large enough to insert the conduit. Repair any damage to the roadway or pavement base drain caused by boring. Insert the capped, rigid, nonmetallic conduit in the tunnel, using a proper lubricant if necessary. Insert the sensor within the conduit. Test leakage resistance and series resistance. Leakage resistance greater than 10 megohms is necessary. Series resistance is not to exceed more than 2.6 ohms per 1,000 feet. Complete the magnetic detector installation, as specified in Section 956. 3(a)1. Adjust the location of the sensor to obtain proper operation.

vandal-resistant, machine screws, rivets, or stainless -steel banding taking care not to impair the message on the sign. Install according to Publications 13M, 148, and as indicated. Ensure that the pushbutton and sign is right side up. Drill and tap mounting holes of the size and pattern specified by the manufacturer. Drill and deburr the cable entrance hole. Install the latching push button isolator card in the controller cabinet. Connect the pushbutton according to the manufacturer’s instructions, as indicated, and as shown on the Standard Drawings. Provide sealant above pushbutton where it abuts connecting support. Field-test the operation by activating the pushbutton and performing a visual check of the controller indicator lights, latching function, and a timing check of the pedestrian phase or phase extension.

the MUTCD, and as follows: Install the APS pushbutton, speaker and vibrotactile device, and any applicable pushbutton sign within 10 feet of the extension of a crosswalk line, and reachable from the level landing of the curb ramp. Orient the arrow parallel to the direction of the crosswalk. Where an exclusive pedestrian phase exists, install a pushbutton with either no arrow or a bi-directional arrow as indicated.

Install the latching push button isolator card and central control unit in the controller cabinet. Attach any external speakers directly to the traffic signal supports and not to pedestrian signal heads. Adjust volumes of the pushbutton locator tone and ambient sound, except when audible beaconing is provided in response to an extended pushbutton press. The button must provide a location tone and extended pushbutton press feature as indicated. All operations and tone or speech messages must comply with the MUTCD. A raised/vibrating directional arrow must be incorporated as part of the pushbutton and vibrate for the duration of the Walk message. In cases of an exclusive pedestrian phase, the pushbutton must vibrate for the duration of the Walk message. The system must provide an auxiliary message during emergency vehicle preemption. Each time the pushbutton is pressed the user must receive an acknowledgement in the form of a single audible "tick" as well as single momentary vibrating pulse. In addition, an LED must turn on and latch until the walk signal is displayed. The LED must latch for all pushbutton stations on that crossing. If the pushbutton station loses power, the system must automatically place a constant call to the traffic controller. Field-test the operation of all features by activating the pushbutton and performing a visual check of the controller indicator lights, latching function, and a timing check of the pedestrian phase or phase extension. Equip intersection with a remote connection as indicated. If device is connected to the internet or network, obtain IP addresses from the District Traffic Engineer or Central Office IT. Provide all material, support, and coordination necessary to ensure th e remote access is functioning properly. Provide field validation that the APS device is properly working.

Install according to the manufacturer’s and supplier’s recommendations to provide for a complete and operational system. Install each preemption detector cable with a single home run of cable from the detector to the controller cabinet without splices. Review each detector location in the field with a Service Representative and a representative of the District Traffic Unit before installation to provide optimum operation. Coordinate with local municipality and emergency services to test the complete system including optical detectors at the intersection with an emergency vehicle. Adjustment to the preemption system pending the field test is incidental.

and as follows: Configure camera with PTZ functions to return automatically to related “Home” viewing position. Configure the subtitle or sector for each camera view position and preset. Display subtitles with the associated video image. Include the road the camera is on, camera number, and any other information as directed.

956.4MEASUREMENT AND PAYMENT—

Unless provided as part of new controller assembly.

Unless provided as part of new controller assembly.

Measured along sawcut to where it enters conduit, includes the number of turns as indicated. The sensor in conduit is incidental to the payment for conduit. Backer Rod is incidental if applicable.

For the type indicated.

The price includes camera, cables, surge protection, controller interface, video monitor for setting up detection

zone(s), mounting hardware, all software with updates for complete installation, removal of any conflicting detector and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes camera, cables, surge protection, controller interface, video monitor for setting up detection zone(s), mounting hardware, all software with updates for complete installation, removal of any conflicting detector and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes camera, cables, surge protection, controller interface, video monitor for setting up detection zone(s), mounting hardware, all software with updates for complete installation, removal of any conflicting detector and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes camera(s), processor, surge protection, boosters/repeaters, software with updates, all mounting hardware, cables and wiring, removal of any conflicting detector(s) and wiring, plugging any holes not being used where existing detection hardware was removed, and additional equipment recommended by the manufacture to provide vehicular detection for the entire intersection as indicated. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test. Additional traffic count and advance signal performance reports must be included as indicated. Include the additional WiFi Mac Address processor and data collection only if indicated. Include the cost of any additional data collection or reports if indicated.

The price includes cable, controller interface, video monitor for setting up detection zone, mounting hardware, and all software for complete installation.

The price includes cameras, cable, surge protection, controller interface, video monitor for setting up detection zones, mounting hardware, all software with updates for complete installation, removal of any conflicting detector(s) and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes radar detector, cables, surge protection, controller interface, mounting hardware, all software with updates for complete installation, removal of any conflicting detector and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes radar detectors, cables, surge protection, controller interface, mounting hardware, all software with updates for complete installation, removal of any conflicting detector and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

The price includes radar and video detectors, cables, surge protection, controller interface, mounting

hardware, all software with updates for complete installation, removal of any conflicting detector(s) and wiring, and plugging any holes not being used where existing detection hardware was removed. Also includes time for manufacturer representative to be on site for the initial detector setup, training, and for any changes needed during the 30-day test.

For the type indicated.

For the type indicated.

The price includes signs, latching card, extension (if necessary), and mounting hardware.

The price includes signs, latching card, control unit, extension bracket (if necessary), and mounting hardware.

For the type indicated. Includes all material required for the installation of an intersection emergency preemption system including detector units, preemption cable, preemption power source cable, boosters, optical detectors, and failsafe lamps. Includes labor for installation, testing, and adjustment pending field test of the preemption System.

The price includes camera, lens, encoders, decoders (as required), wires, connectors, grounding rod, conductor, installation, training, and integration work for a complete subsystem.