SPECIFICATION 707
Variable Message Signs
(Fixed type)
Copyright MAIN ROADS Western Australia
MAIN ROADS Western Australia / Specification 707 VARIABLE MESSAGE SIGNS (Fixed Type) / Page 31 of 31Contract xxx/xx / Document 11/5642 Issued 09/01/2015
SPECIFICATION 707
Variable Message SignS
REVISION REGISTER
Date / ClauseNumber / Description of Revision / Authorised
By
26/09/2011 / Whole document / New Specification / EE
09/01/2015 / Whole document / Revised and restructured to match AS 4852.1 / EE
CONTENTS
Clause Page No
GENERAL 5
707.01 SCOPE 5
707.02 REFERENCES 5
707.03 Definition of terms 7
707.04 General 8
707.05 order of precedence 8
707.06-707.10 Not used 8
SUPPLY AND ARRANGEMENT 9
707.11 MECHANICAL REQUIREMENTS 9
707.12 Electrical requirements 11
707.13 COMMUNICATIONS EQUIPMENT 13
707.14 MARKINGS AND LABELS 14
707.15-707.20 not used 14
DISPLAY AND OPTICAL REQUIREMENTS 15
707.21 Display requirements 15
707.22 Optical requirements 15
707.23-707.25 not used 15
OPERATION AND CONTROL 16
707.26 COMMUNICATION PROTOCOL 16
707.27-707.29 not used 16
ENVIRONMENTAL REQUIREMENTS 17
707.30 ENCLOSURE Protection 17
707.31 WIND LOADING 17
707.32 ELECTROMAGNETIC COMPATIBILITY 17
707.33-707.35 not used 17
INSTALLATION 18
707.36 GENERAL INSTALLATION 18
707.37 PROVISION FOR TRAFFIC 18
707.38 products and MATERIALS 18
707.39 MECHANICAL INSTALLATION 19
707.40 Electrical Installation 19
707.41 COMMUNICATIONS 20
707.42 REINSTATEMENT AND CLEAN-UP 21
707.46-707.49 not used 21
TESTING AND COMMISSIONING 22
707.50 GENERAL 22
707.51 Product acceptance testing 23
707.52 factory acceptance TESTING 23
707.53 Delivery Acceptance testing 23
707.54 SITE Acceptance testing 24
707.55 MAINTENANCE HANDOVER 24
707.56 DOCUMENTATION 25
707.57-707.60 not used 26
Appendices 27
ANNEXURE 707A 27
ANNEXURE 707B 28
ANNEXURE 707C 29
SPECIFICATION AMENDMENT CHECKLIST 31
MAIN ROADS Western Australia / Specification 707 VARIABLE MESSAGE SIGNS (Fixed Type) / Page 31 of 31Contract xxx/xx / Document 11/5642 Issued 09/01/2015
SPECIFICATION 707
VARIABLE MESSAGE SIGNS
(FIXED TYPE)
GENERAL
707.01 SCOPE
/1. This specification defines the requirements for the supply, installation, testing and commissioning of Variable Message Signs (VMS).
The scope of work covered by this specification includes:
a) The supply of the materials for VMS housing and associated communication equipment;
b) The installation and workmanship of the VMS and connection to power and communication infrastructure;
c) The supply and installation of structural and steelwork for the VMS sign;
d) The testing and maintenance of the sign and all communications and associated equipment;
e) The removal and/or replacement of VMS and related equipment; and
f) The supply of as-constructed documentation and any relevant training information.
707.02 REFERENCES
/1. Australian Standards, MAIN ROADS Western Australia Standards and MAIN ROADS Western Australia Test Methods are referred to in abbreviated form (e.g. AS 1234, MRS 67-08-43 or WA 123). For convenience, the full titles are given below:
Acts and Regulations
Govt. of Western Australia Office of Energy WA Electrical Requirements
Electricity Act 1994 and associated Amendments and Regulations and Electrical Safety Act 2002 and associated Amendments, Regulations and Codes of Practice
Australian/New Zealand Standards
AS 4852.1 Fixed Variable Message Sign
AS 1734 Aluminium and Alloys
AS 1657 Fixed Platforms, walkways, stairways and ladders
AS/NZS 3017 VMS Electrical requirements
AS/NZS 61558 Safety of Power transformers, power supply units and similar
AS/NZS 3000 Electrical
AS/NZS 3017 Electrical Verification
AS/NZS 3100 Electrical Approval and Test
AS/NZS 3108 Transformer Approval and Test
AS/NZS 3190 RCD Approval and Test
AS/NZS 1768 Lighting Protection
AS/NZS 2053 Electrical Conduits
AS/NZS 4100 Steel Structures
AS/NZS 4680 Galvanized Coatings
Other Standards
ACMA Technical Planning Guidelines – Appendix 3, Emission Standard for the Australian Analogue Terrestrial Television Service – Video Characteristics
AS/ACIF S009 Installation requirements for customer cabling.
AUSTEL Technical Standard 009 Installation Requirements for Customer Cabling
CCITT Recommendation G652 Characteristics of a single Mode Optical Fibre Cable.
IEEE 802 Ethernet Standards
CPCM AUSTEL/ACA Customer premises cabling manual.
TS 001-011 AUSTEL/ACA Technical Specifications
Main Roads Specifications and Documents
MRS 67-08-71 Intelligent Transport Systems (ITS) Policy
MRS 67-08-1 As-constructed Drawings Guidelines
D10#43935 Guidelines for Variable Message Sign Control
Specification 202 Traffic
Specification 301 Clearing
Specification 302 Earthworks
Specification 404 Culverts
Specification 603 Safety and Traffic Barrier Systems
Specification 701 Roadway Lighting
Specification 704 Cable Conduits & Pits for Intelligent Transport Systems (ITS)
Specification 705 Optical Fibre Installations
Specification 712 Traffic Signals
Specification 713 Uninterrupted Power Supply (UPS)
Specification 801 Earthworks and Backfill for Structures
Specification 830 Structural Steel
Specification 908 Anti-Graffiti
Materials Specifications (various)
707.03 Definition of terms
/All terms and definitions in addition to those provided in AS/NZS 4852.1 which apply to this specification are listed below:
AS Australian standard
AS/NZS Australian and New Zealand standard
AUSTEL Australian Telecommunication
Cabinet Ground Mounted Control Housing as per AS4852.1
Contractor The service provider engaged and paid by Main Roads to engage in the Manufacture, Supply, Delivery, Installation and Commissioning of the infrastructure and its constituents
ELV Extra Low Voltage (As defined in AS/NZS 3000:2007)
ISA Integrated Services Arrangements
ITS Intelligent Transport System(s)
MRWA Main Roads Western Australia
PM Project Manager
TCS Traffic Control System
TOC Traffic Operations Centre
UPS Uninterruptible Power Supply
707.04 General
/1. The VMS and all associated equipment supplied, shall meet all the requirements of AS 4852.1 unless otherwise specified in this document / AS 4852.1
707.05 order of precedence
1. The following order of precedence (in descending order of precedence) will apply to resolve any ambiguity or discrepancy in the referenced documents and standards to the extent necessary to resolve the conflict, ambiguity or discrepancy. / Precedence1) Project Specific requirements as approved by Asset Manager Traffic Systems;
2) This Specification and referenced drawings;
3) Main Roads standards, specifications and guidelines;
4) Australian Standards, Specifications and Guidelines; followed by
5) Other Supplementary Standards and Specifications.
707.06-707.10 not used
SUPPLY AND ARRANGEMENT707.11 MECHANICAL REQUIREMENTS
707.11.01 GENERAL
1. The VMS shall be designed and manufactured based on the project specific requirements and Main Roads’ design guidelines for Variable Message Signs.707.11.02 SIGN ENCLOSURE
1. Access shall be provided to all internal components of the sign. / Access to components2. The enclosure doors shall be fitted with suitable locks to ensure positive seal.
3. All locks shall be keyed to MRWA Master Key No. 247. / Locks
4. All hinge pins, door stays and associated equipment shall be made from stainless steel. / Stainless Steel Hinge Pins and Door Stays
5. Doors shall be fitted with suitable internal stiffeners. / Door Stiffeners
6. To allow for ease of maintenance in darkness, a LED or florescent light shall be supplied, that is automatically operated when the enclosure door is opened. The light shall adequately illuminate all internal components. / Lighting
707.11.03 SIGN SUPPORT STRUCTURE
1. Unless otherwise specified, the sign support structure shall be positioned such that the distance between the rightmost side of the sign and right side of the median lane is kept at a minimum of 8.5m, on routes where High Wide Loads are permitted. This requirement shall be taken into account when the support structure is designed. This requirement is not applicable to routes where High Wide Loads are not permitted. The structure shall also provide a vertical clearance of 6m between the sign enclosure and the trafficable surface. / Horizontal and Vertical Clearances2. VMS support structure and all associated hardware shall be supplied under the contract. The concept design for the support structure shall be approved by Main Roads in relation to general construction, aesthetics and finish. / Support structure design approval
3. All poles and supports shall be sufficiently sealed to ensure that moisture running down the side of the column or vermin cannot enter the column. / Sealing
4. All fastenings shall be stainless steel 304 or 316 grade. / Fastenings
707.11.04 GROUND-MOUNTED CONTROL CABINET
1. The VMS sign shall be supplied with a ground-mounted cabinet containing the control and communications equipment. In the event this is not possible under site conditions, a suitable alternative can be used where approval by Asset Manager Traffic Systems is obtained. / Cabinet2. The ground-mounted cabinet shall be provided with a raised concrete plinth with a minimum thickness of 150mm. / Concrete Plinth
3. The ground-mounted cabinet shall be placed within 15 metres of the VMS sign structure. It shall not obstruct movements on any pedestrian or shared path and shall be located away from the traffic lane in accordance with the clear zone requirements set out for roadside furniture. / Location of Cabinet
4. The ground-mounted cabinet shall be either a single-door or double-door cabinet and be constructed as per the relevant standard drawing referenced in Annexure A. / Cabinet size
5. Doors shall be fitted with suitable internal stiffeners. / Door Stiffeners
6. The ground mounted cabinet doors shall be fitted with suitable locks to ensure positive seal. / Lock
7. The locking system, hinge pins, door stays and all associated equipment shall be made from stainless steel. / Stainless Steel Locks, Hinge Pins and Door Stays
8. All locks shall be keyed to MRWA Master Key No. 247. / Key
9. If the sign is powered by a metered supply, the supply shall be contained in a ground mounted cabinet. In such an instance it is required that the ground cabinet locks are dual keyed, capable of being operated by standard Western Power key NK6 as well as MRWA Master Key No. 247. / Dual Keyed Locks for Metered Supply
10. To allow for ease of maintenance in darkness, a LED or florescent light shall be supplied for the ground cabinet, that is automatically operated when the cabinet door is opened. The light shall adequately illuminate all internal components. / Lighting
707.11.05 ACCESS AND VANDAL RESISTANCE
1. Type A VMS shall be provided with an access platform only, whilst Type B and C VMS shall be provided with both an access platform and an access ladder (caged). / Sign type and access provision2. Where an access ladder is provided, the ladder shall extend to ground level. / Ladder
3. The design of the access platform and access ladder shall comply with the requirements in AS 1657. / AS 1657
4. The design of the support structure, access platform and access ladder should be such that the possibility of unauthorised access to the structure is minimised. / Minimises unauthorised access
5. A sliding hatch with a suitable locking mechanism shall be provided on the access ladder, for entry to the safety cage. All locking and sliding mechanisms and associated equipment shall be made of stainless steel. / Sliding hatch
6. The hatch lock shall be keyed to MRWA Master Key No 247. / Key
7. A notice shall be provided on the face of the sliding hatch with the wording DANGER ENTRY OF UNAUTHORISED PERSONS PROHIBITED. / Hatch warning notice
8. A reinforced concrete landing of minimum dimensions 1500 x 1500 x 150 mm shall be provided at ground level at the bottom of the access ladder. / Concrete landing
9. The orientation for the access ladder shall be at an angle between 70 and 75 degrees to the horizontal plane for ease of maintenance accessibility. / Ladder angle
10. At the top of the access ladder and located on the gantry platform a hinged spring self-closing safety gate shall be installed. The gate shall open inward onto the platform such that a person accessing the platform is not restricted in any way when egressing the ladder and stepping onto the platform. / Safety gate
11. The safety gate shall have a notice affixed on the platform side with the wording DANGER FALL HAZARD. / Gate warning notice
12. The gantry, support structure and notices shall be generally configured as per the detailed drawing references in Annexure A. / Annexure A
707.12 Electrical requirements
707.12.01 COMPLIANCE WITH WIRING STANDARDS
1. All electrical systems shall be compliant with AS/NZS 3000, be verified in accordance with AS/NZS 3017, and be approved and tested in accordance with AS/NZS 3100. / AS/NZS 3000AS/NZS 3017
2. All conductors shall be standard sizes with PVC insulation, minimum voltage rating 0.6/1kV and temperature rating V-105 PVC or better. / Conductors
3. Internal conductor sizes shall be of adequate cross-section. The minimum size permissible shall match the full current rating capacity of the connected equipment. Conductors shall be stranded; in addition, DC service shall be tinned. The smallest conductor shall be not less than 1mm². / Conductor sizes
4. Transformers used for the VMS sign shall comply with AS/NZS 61558. / AS/NZS 61558
707.12.02 GENERAL PURPOSE OUTLET
1. In the sign enclosure and the ground-mounted cabinet, a 240V double General Purpose Outlet (GPO) shall be supplied, complete with an integral 30 milli-ampere Type II Residual Current Device, compliant with AS/NZS 3190. The GPO shall be mounted in an accessible location with sufficient room for power plug packs. The GPO shall be supplied and protected by an auxiliary circuit breaker in the ground-mounted cabinet. / GPOAS/NZS 3190
707.12.03 BATTERY BACKUP
1. The VMS signs shall be supplied with batteries to back up the sign operation, including control and communications, for 1 full hour with half of available pixels displayed and for a minimum of 12 hours with the pixel display and conspicuity devices turned off. / Back up operation2. The batteries shall be of one of the following types, listed in order of decreasing preference: / Battery Type
1) Lithium batteries
2) Gel batteries
3) Absorbent Glass Mat (AGM) batteries
3. In the event of a power failure, the system shall fall back to full battery operation. / Fall Back
4. The VMS shall automatically revert back to normal operation upon reconnection of main power. / Return to Normal Operation
5. The VMS shall allow for remote monitoring of battery condition and back up status. During a mains power failure a Mains Power alarm shall be indicated to the Main Roads central control system. / Remote Monitoring
6. If required by the Asset Manager Traffic Systems, the VMS should be supplied with a UPS as per specification 713. The specification may require amendment to suit the requirements of VMS signs. / Specification 713
707.12.04 SURGE PROTECTION
1. The VMS shall be provided with the equipment which protects the sign against the surges as specified in Section 2.2.4 of AS4852.1. / AS/NZS 1768
2. The surge protection device(s) shall provide a visual display advising if the device has failed. / Visual Display
3. The surge device(s) shall be DIN-rail-mounted and be easily accessible and viewable. The unit shall be clear of any cable and shall not be mounted in-line by flying lead on any mains switch or circuit breakers. / Access and Mounting
4. The surge device(s) shall be isolated from the Mains supply when the main switch is open. / Isolation
707.13 COMMUNICATIONS EQUIPMENT