4) Australian Standards, Specifications and Guidelines.
5) Relevant General Arrangement Drawings and Other Supplementary Standards and Specifications.
703.06 – 703.09 not used
PRODUCTS, MATERIALS and WORKMANSHIP
703.10 products and MATERIALS
1. All materials provided by the Contractor shall be new.
All Materials Shall be New
2. All materials provided by the Contractor shall satisfy the requirements of this specification. Where it is unclear that an item will fully satisfy these requirements, or the item does not satisfy the requirements, the Contractor shall submit details of the item to the Project Manager for approval, inclusive of manufacturers data and information sheets, and how the item does not meet the required specifications.
Substitution and Conformance
3. The Contractor shall demonstrate conformance to the requirements of this specification and project drawings, when using materials and equipment different to that specified.
No Loss of Performance
1. All work shall conform to the requirements of the MRWA specifications and standards referenced in Section 703.02 as a minimum.
Conformance to MRWA Specifications
2. All electrical work relating to cabling and cabling conduits shall be carried out in accordance with AS/NZS 3000.
3. The requirements of the power supply authority and any other body (or bodies) having jurisdiction over such works in Western Australia, shall also be satisfied.
4. The Contractor shall lodge all notices required by the power supply and communications authorities, and any other authority having jurisdiction over the installation, and pay any fees required.
Contractor to Lodge all Notices
703.12 – 703.15 not used
functional and performance requirements
All equipment installed using this specification forms part of the Traffic Management System at the TOC. As a result, all hardware and software must be fully compatible with MRWA’s existing Traffic Management System, and must not interfere in any way with any other system already installed.
Non-interference with Existing Systems
703.16.01 IMAGE QUALITY
1. Images shall be captured, transmitted and displayed at the highest quality and refresh rate permitted by the capacity of the communications network and the imaging equipment system.
Images Transmitted in High Quality
2. CCTV video and control signals for each camera shall be transmitted digitally over the same telecommunications channel. Images shall be transmitted to the MRWA TOC and shall be compatible with the currently used DVTel CCTV control system.
CCTV Video & Control Signals Compatibility
3. Digital imaging technology may be used, however, the imaging equipment and images provided by this equipment shall be interoperable with the control systems in use at the TOC. In addition, imaging equipment shall utilise proven, industry standards that are current at the time of the provision of the equipment.
4. During daylight hours, all CCTV cameras shall allow vehicle characteristics such as colour and shape to be easily discerned in the traffic stream at all visible points up to 400m from the CCTV camera installation (excluding geographic limitations such as road curves).
5. Cameras shall provide high sensitivity for operating at night under low light conditions. Low light operation should have a minimum sensitivity of no less than 0.02 Lux at 1/15 sec shutter speed for a colour image.
Low light Operation
703.17 WEB CAMERAS
1. The image quality and resolution of Web cameras shall ensure that the internet displayed images are reliable and accurate. The cameras shall have the following features:
1/3 Inch CCD High resolution, Dual Stream H.264 / D1 MPEG4 Day/ Night camera with Wide Dynamic Range. (e.g. DVTel Pro Elite Altitude CF-2100 series Fixed Camera).
Multi video resolutions up to D1.
Up to 2 x 25 Frames per second.
With SD slot available.
Two Alarm inputs / One relay output.
Unicast or multicast operation.
12 VDC/24 VDC and Power Over Ethernet (PoE) options.
Available Web interface for Viewing Configuration and Control.
Ruggedized, Corrosion resistant Outdoor housing (IP 66 NEMA 4) with Sunshield & thermostat controlled Heater /Demister.
Manually adjustable Pan /Tilt mounting.
2. The fixed web cameras shall provide a moderately wide view of traffic to adequately capture traffic flows over the covered range.
Wide Viewing Angle
3. All images broadcast onto the Internet must comply with the Western Australian Government Privacy Policies. To ensure that the images are suitable for public display, sensitive areas such as residential and housing should not be viewable. In addition, all images displayed must not allow identification of people or vehicles.
4. All web cameras shall provide a 10/100 Base-T hub sensing Half/Full duplex capable RJ45 Ethernet communications port.
Ethernet Port Required
703.18 – 703.22 not used
1. Due to the rapid advancements in technology, only the minimum requirements of hardware selection and technical requirements are included in this specification. Specific projects may need to have some of this information updated to include current requirements.
Minimum Standard Requirements
2. Imaging equipment shall include motorized zoom lens, camera, housing, Pan-Tilt unit, mounts, pole, field cabinets & hardware, camera controls, encoders, associated cabling and surge protection and any other equipment and Works necessary to operate as intended. Node/field cabinets will be provided by others.
3. All camera locations are detailed in the Project documentation.
4. Cameras, lenses, mounting support, control heads, enclosures and associated facilities shall be designed and installed to provide for the optimum quality of the road network images for each location.
5. 240V AC and 24V AC, 50 Hz Power shall be available from the nearest field/node cabinet as shown in the relevant drawings. The preferred operating power for cameras is 24V AC.
POLES, BRACKETS & POLE HARDWARE
1. Poles, brackets and all associated hardware shall be supplied to support CCTV cameras for traffic monitoring. All CCTV Cameras shall have a full pan, tilt and zoom capability as outlined in this specification.
2. All poles shall be fabricated in accordance with AS/NZS 4677.
3. All poles shall be sufficiently sealed to ensure that moisture running down the side of the column or vermin cannot enter the column.
4. All fastenings shall be stainless steel 304 or 316 grade.
703.24.01 TILT POLE REQUIREMENTS
CCTV cameras shall be mounted on poles to provide a secure and stable platform for cameras and pan tilt heads. Each pole, associated assemblies and all parts and accessories shall be corrosion resistant material suitable for salt atmosphere (i.e. zinc galvanised steel or marine grade stainless steel).
2. Typically poles for CCTV cameras shall be 12m or 10m in height however some cameras may need to be a specific height based on a location. In any case the final pole details shall be confirmed by the Project Manager in consultation with the MRWA Systems Development Manager.
3. Each pole shall be a mid-hinged tilt-down arrangement and supplied with appropriate counterweight compatible with the weight of the top of pole installation to provide rotational balance. The structural design of the poles shall be in accordance with AS/NZS 4676.
Pole Structural Design
4. Poles shall be tapered with a polygonal section, with a minimum of eight sides. The pole shall be base plate mounted and supplied with a matching foundation, rag bolt assembly and associated fixing template. The top of the pole shall have a width of no less than 150 mm (AF) to minimise wind caused vibration at the top of the pole.
5. An access door shall be provided near the base of the pole. The opening shall be minimum 125 mm wide by 500 mm high. The bottom of the opening shall be minimum 0.5m above the pole bottom. The door shall provide weatherproof resistance to IP43 or better.
Pole Access Panel
6. The pole shall be designed such that it is not possible for the camera equipment to touch the lower section of the pole and the ground when lowered. Pulling eyes shall be located on the flap and at the pole base so that a rope may be used to raise the hinged section and regulate the lowering speed of the hinged section.
7. The pole shall have two independent latching systems to hold the hinged section in place. The first latching system shall comprise a tamper proof stainless steel bolt of appropriate strength to fix the hinged top section rigidly to bottom section. The second latching system shall comprise a lug welded to the inside face of the hinged top section and protruding through a hole in the lower pole section when in the upright position. It shall be possible to install a padlock through the lug on the inside of the pole via the hatchway.
8. A ‘lock box’ shall be welded to the pole surrounding the hole in the hinged top section. The ‘lock box’ limits unwanted access to the lug and locking mechanism. It shall be fitted symmetrically over the hole. When the pole is in an upright position with the lug protruding through the hole, the lower edge of the lock box shall be 25 mm below the lower edge of the hole in the lug. The general dimensions of the lock box shall be 130 mm wide, 100 mm height, 75 mm depth and 4 mm minimum thickness (galvanised steel). Only the lower side of the lock box shall be open to enable fitting the padlock.
9. The base plate shall allow the protrusion of 2 x 50mm underground plastic conduit into the base of the pole. If necessary a tapped hole shall be provided in the side of the pole near the top to accept screwed 50mm conduit fittings. The hole shall be within 150mm of the top. Threads shall be cleaned after galvanising.
Base Plate &
Upper conduit connection
10. The foundation bolts shall be provided in a single assembly. The assembly will be made from the appropriate grade of steel commensurate with this specification. The assembly shall be galvanised in accordance with AS4680 and minimum coating thickness shall be 100 microns with no pitting or protrusions. Strength of the assembly shall be commensurate with the pole for which it is intended and a 50-year life in the Perth Region according to AS1170 parts 1 and 2. (For cameras installed in other areas, e.g. cyclone prone areas, the design shall meet the area requirements.) Two nuts and two flat washers per foundation bolt for fixing each pole to its foundation shall be provided. They shall be galvanised to AS4680. Spacing between the bolts shall allow the passage of 2 x 50mm underground plastic conduit sweep bend (250 mm minimum radius).
11. Fixing templates shall be provided for each of the different assemblies to allow the correct orientation and placing of the assembly in the concrete foundation. The template shall accurately reflect the shape of the pole base to +/- 1mm. The template shall be made of strong waterproof material to prevent movement of the assembly as the concrete is poured.
Base Fixing Templates
12. Deflection from wind loading with the camera, pan tilt head and enclosure mounted, shall be less than 0.1 degrees for 28m /sec. wind speed.
Pole /Camera Deflection
703.24.02 FIXED (TCS) POLE REQUIREMENTS
1. Generally for cameras at traffic signals sites a ‘dual use’ camera pole (fixed) shall be installed. This pole is also likely to be used for mounting traffic signal aspects, and as such there will be specific installation requirements.
Dual Use Camera Poles
2. Any work involving Traffic Signals infrastructure must be carried out in co-ordination with the TCIC Contractor (Downer EDI Engineering), or the ISA Contractor.
Work Involving Signals
3. The column shaft and base shall comply with Australian Standards of Grade and thickness determined in the design drawing 200431-0143. (See ANNEXURE 703A). Any other camera column must be authorised by the Project Manager in consultation with the MRWA Asset Manager Traffic Systems.
4. The construction of the column shall be from steel, square in shape with four equal sides, 150x150 SHS 5056 cut to length, conforming to Australian Standards.
5. The steel plate sections shall be seam welded by a continuous automatic gas shielded electric arc process in accordance with Australian Standard 1554 .1 /1991.
6. The column shall be fully hot dip galvanised in accordance with Australian Standard 1650 / 1989 following completion of the fabrication.
7. The general finish of all columns shall be of a high quality with all holes and surfaces free from burrs and sharp edges to allow the installation, without damage, of electrical cables into the pole. The surface shall be free of kinks, ripples and galvanising defects.
8. The TCS / Camera column shall be finished in a polyester powder coat golden yellow according to the manufacturers’ specification. The bottom 400mm of the column shall be treated with DuPont ‘Nap-gard’ or similar corrosion protection that conforms to Australian Standards AS/NZS 2312:2002.
703.24.03 FIXED (TCS) POLE INFRASATRUCTURE
Where TCS / Camera Poles are to be used, a terminal box and terminal block assembly shall be provided and installed. The terminal box shall be heavy duty, vandal resistant and constructed from marine grade aluminium sheeting not less than 2mm thickness. It should be finished in a powder coat (blue/grey) according to the manufacturer’s specifications, and fitted to the TCS/Camera pole using the screw mounting points provided. A waterproof sealant shall be used between the post and the terminal box cable entry and screw mounting points, to prevent the ingress of moisture. (Terminal Box details are available from the Main Roads Web site.)
TCS Terminal Box
703.25 Camera HOUSING & PAN/ TILT / ZOOM FACILITY
1. Camera housings shall be robust aluminium construction, weatherproof with baked enamel finish and able to tolerate a corrosive atmosphere.
2. The viewing window shall be an optically clear, free of distortion, tempered glass sheet of at least 5.5 mm thickness. The housing shall be fitted with a with a screen wiper (for non-Dome camera).
3. Pan and tilt units shall be robust and able to give trouble free service in harsh environments. The camera housing and pan-tilt unit may constitute a single assembly (e.g. Pelco Esprit). Integrated dome housings may be used where a ‘dome’ camera is allowed or specified.
703.25.02 CAMERA HOUSING REQUIREMENTS
1. Each camera shall be enclosed in a housing, which protects it from external climate weather effects, without degradation of picture lucidity. All housings shall meet the following minimum requirements:
Provide protection for the camera from driving rain, moisture and dust (IP65 or better).
Housings shall be corrosion resistant, structurally rigid aluminium in construction, weatherproof with baked enamel finish. External fastenings and lock attachments shall be stainless steel 304 grades or better. Coatings and fittings shall tolerate exposures to salt atmosphere and motor vehicle fumes.
A sunshield shall be fitted which shall be corrosion resistant aluminium in construction with baked enamel finish and resistant to corrosion in salt atmosphere.
Ease of access for maintenance shall be provided.
Cable entries shall be provided, which are able to accept all cables required to enter the housing. The cable entries shall be weatherproof to IP65 as a minimum.
Internal free space shall be provided such that the camera, lens and cables do not interfere with the housing itself. The fan shall not intrude into this space.
The camera housing window shall not introduce any distortion to the video picture.
A thermostat controlled heater shall be included (as required) to prevent misting.
703.25.03 PAN-TILT REQUIREMENTS
1. The pan and tilt unit shall be robust and able to give trouble free service in a harsh environment. The pan and tilt unit shall conform to the following as a minimum requirement:
Pan-Tilt Minimum Requirement
The pan-tilt head shall be a heavy duty unit with a MTBF rating of better than 10,000 hours on a 26% duty cycle.
Panning arc of travel shall be 360 degrees continuous rotation. Panning speed shall be variable between 0.1 and 40 degrees per second or greater.
Tilting minimum arc of travel to be infinitely variable between plus 33 degrees and minus 83 degrees of the horizontal datum. Tilting speed shall be variable from 0.1 to 20 degrees per second or greater.
Pan and Tilt mechanisms shall permit aiming of the camera within 0.5 degree of arc. Total backlash of the mechanism shall be less than 0.2 degree.
Position feedback shall be fitted for both pan and tilt mechanisms. Where potentiometers are used they shall have a maximum resistance of 10 kilohms and a minimum electrical and mechanical life of 100,000 rotations. Feedback resolution shall be better than 0.2 degrees.
The weight of the unit should be less than 15kg.
The unit will operate from extra low voltage 24V AC power supply.
The pan-tilt head shall function to this specification over the free air temperature range –10°C to +50°C;
If the pan and tilt unit is not part of an integrated dome camera housing then it shall be weatherproof to IP65 and resistant to corrosion from salt air and motor vehicle fumes.
1. All CCTV cameras shall meet the following minimum requirements:
Cameras are to be PAL colour, semiconductor imager (CCD) type providing day and night operating modes.
The camera output shall conform to the ACMA Technical Planning Guidelines, 625 lines interlaced, at least 25 frames per second with a composite PAL video signal output of 1V peak to peak, negative sync.
CCD shall consist of 750 Horizontal by 580 Vertical effective pixels minimum. There shall be no more than two defective pixels over the area of a central circle whose diameter is equal to the picture height with no cluster and no column defects.
The imager chip shall be 1/4 inch format minimum.
High Sensitivity cameras shall be used for a usable picture that is un-enhanced by averaging techniques.
Signal to noise ratio shall be as specified on the project (possibly better than 50dB for 10 lux faceplate illumination) or, no AGC and no gamma correction. Transfer smear, blooming and streaking induced by highlights shall be almost zero (eg headlights at night)
AGC shall be included as well as an auto-iris output of 0.7-1 Vp-p. Light range adaption for AGC / auto-iris lens combination shall exceed 10,000:1.
Cameras shall include automatic white balance to compensate for colour temperature of the scene illumination and shall be compatible with the incident street lighting.
Lens mount shall be standard C or CS lens mount type and lockable. A simple form of Back Focus adjustment shall be provided.
The camera shall perform to this specification from 24V AC power supply.
The camera must be capable of continuous, normal operation over the free air temperature range between –10°C to +50°C and relative humidity up to 90 percent (As per AS 2578-2009, Section 1.4 General Requirements).
Preference will be given to those cameras which include noise reduction and sensitivity enhancement techniques such as frame averaging and dynamic range adjustment.
2. Lenses shall be motorised zoom (minimum 24:1 optical zoom) with auto iris and position feedback and shall meet the following minimum requirements:
Lens Minimum Requirement
Zoom lenses shall be compatible with the cameras installed.
Focus tracking shall be such that the lens will not require focus adjustment for an object at infinity (>10m) over the entire zoom range.
Minimum focal length shall be 3.8 mm or less and maximum focal length shall be 91 mm or greater.
Maximum aperture number shall be at least F1.2. In combination with the camera AGC the auto iris shall provide a light adaption range of at least 10,000:1.
Focus range shall be at least 2 m to infinity.
Focus tracking shall be such that the lens will not require focus adjustment for an object at infinity (>10m) over the entire 24:1 zoom range at night. There shall be no visible distortion or lens artefacts to the image over the entire zoom range.
Both zoom and focus shall be fitted with position feedback.
Both the zoom and auto iris control shall be compatible with the camera and the Extra Low Voltage 24V AC supply. The auto iris servo shall also accept a video signal (0.7v p-p) or composite video (1.0 V p-p) with a minimum 10 kilohm input impedance.
The iris shall close if power is lost from the lens iris control.
703.27 CAMERA CONTROL
1. Camera control shall be compatible with the existing DVTel CCTV system currently in use at the TOC. Camera control shall include preset positions, which encompass both the pan and tilt angles and zoom settings. Operators shall be able to set and recall positions from the TOC. All cameras shall meet the following general requirements as a minimum:
For each pan, tilt and zoom camera site the camera control system shall be capable of setting configurable preset camera positions.
The presets for pan and tilt shall be able to be set within 1 degree of arc while zoom and focus shall be able to be set for at least eight distinct focal lengths.
On returning to a preset, the pan and tilt repeatability shall be within 0.5 degrees and zoom and focus repeatability shall be within 3%.
The camera control shall be compatible with the DVTEL control system used at TOC.
At each pan, tilt and zoom camera site the control receiver shall receive and decode information from the TOC without error for ambient free air temperatures in the range –10°C to +50°C and humidity range of 10 to 90 percent.
703.28 cAMERA COMMUNICATIONS
1. The roadside IP/Ethernet based transmission system shall be used to transmit video and control data between the camera and the TOC.
Video Transmission System
2. The video transmission system shall provide a bi-directional data channel for camera selection and control. Pictures shall be transmitted in full motion and colour. The video transmission system shall meet or exceed in quality the specifications set out in this section.
Bi-directional data channel
A minimum resolution of 704 (Horizontal) times 576 (Vertical) pixels (CIF times 4) at a minimum frame rate of 25 frames per second with minimal artefacts and compression effects for each of the camera images.
Full motion colour video shall be provided and the total time lag between the scene and the corresponding displayed image at any monitor at the TOC shall be less than one second, subject to any limitations of the communications system proposed. (e.g. use of 3G communications). Any such limitations shall be taken into consideration and the project stakeholders advised by the Project Manager.
Video terminations at the encoder/decoder shall be BNC socket.
Video bandwidth of any analogue interface of the completed link shall be 10 Hz to 6.0 MHz plus or minus 2dB.
703.29 POWER SURGE & LIGHTNING PROTECTION
1. The Contractor shall provide all required cabling between the field/node cabinet and the Camera pole installation. The Contractor shall provide multi-stage surge protection devices in the field/node cabinet to protect each metallic core for all CCTV power, video and data lines at the field/node cabinet.
2. The protection provided for each circuit shall be by way of a DIN rail mounted device providing primary, secondary and tertiary protection. The device(s) shall be mounted on the communications cabinet 19” rack (DIN rail to be included), or in the ‘Top Hat’ cabinet extension where utilised. The three stage protection consists of:
Clamping of transient excessive voltages diverting the bulk of the current to neutral or ground (at input end).
Filtering of the clamped waveform reducing the rate of residual voltage rise.
Provision for the final stage diversion of surge currents to provide protection from surge currents induced onto the output cables or caused by the load itself. This includes High Frequency filtering.
Three Stage Protection
3. The protective device on each circuit shall include a means for indicating (visually) when it has been ‘tripped’ and is no longer providing protection to the circuit.
4. Each device shall connect to an approved earthing system at the site in accordance with the manufacturer’s recommendations and sound engineering practices.
5. All surge protection devices shall be multi-stage devices complying with AS/NZS 4117 with the following minimum characteristics (Ref Waveforms in Figure F1, Table F1, Appendix F of AS/NZS 1768 and AS 4262.2):
Power line protection: Maximum discharge current (8/20µs) = 6.5kA;
Video and signal line protection; maximum discharge current (8/20µs) = 20kA.
703.29.02 PROTECTION - VIDEO CIRCUITS
1. Each camera video circuit shall be surge/ lightning protected using a DIN rail mounted multistage protection device.
2. Video coaxial cables shall first terminate at the surge/ lightning protection devices before connection to the video patch panel.
3. Each protective device shall as a minimum meet the protective characteristics of a Novaris Technologies combined surge protector type SF102DIN-CLB.
703.29.03 PROTECTION - POWER SUPPLY CIRCUITS
1. Each camera power supply circuit shall be surge/ lightning protected using a DIN rail mounted multistage protection device.
2. Camera power supply cables shall first terminate at the surge/ lightning protection devices before connection to the camera power supply output terminals.
3. Each device shall meet or exceed the protective characteristics of a Novaris Technologies combined surge protector type SF102DIN-CLB.
PROTECTION - DATA CIRCUITS
1. Each wire of each camera PTZ control circuit shall be surge/ lightning protected using a DIN rail mounted multistage protection device.
2. The PTZ camera control cables shall first terminate at the sure/lightning protection devices before connecting to the camera control circuit distribution equipment.
3. For RS 485 control circuits, the device shall provide similar functionality and performance to a Novaris Technologies surge protector as specified in item 3 above.
703.30 CAMERA SCREEN WASH & WIPE FACILITY
1. All CCTV Cameras (except were Dome cameras are specified) shall be provided with a screen wash / wiper facility.
2. The screen wash reservoir shall store a minimum of five (5) litres, and be contained in proximity to the camera unit. When utilising ’dual use’ TCS camera poles the water storage container would normally be located in a pit close to the signal pole. The contractor shall install the pit, container, pump and associated controlling equipment for control from the TOC.
Water Storage Container
703.31 SPARE PARTS & TOOLS
1. The Contractor shall maintain sufficient spares where a device or component is known to have a high fault rate or a high ordering delay time.
2. Where operation, maintenance, dismantling, reassembling, adjusting or aligning requires special tools or instruments, these are to be supplied with the equipment.