Standard
Track updates
AS 4191:2015
[Current]Portable traffic signal systems
Specifies requirements for the design, construction and performance of three-colour portable traffic signal systems for use where temporary control of vehicular traffic is required, such as at roadworks or bridge works.
Published: 16/12/2015
Pages: 25
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
1.4 Radio power and frequency licensing requirements
1.5 Trailers
1.6 Surface finishes
1.7 Instructions
1.8 Marking
2 Operational requirements
2.1 Control types
2.2 Modes of operation
2.3 Start-up sequence
2.3.1 Initial start-up
2.3.2 Fixed-time and vehicle-actuated modes of operation
2.3.3 Manual mode of operation
2.4 Start-up interlocks
2.5 Manual operation
2.6 Fixed-time operation
2.7 Vehicle-actuated operation
2.7.1 General
2.7.2 Vehicle detector actuations
2.7.3 Minimum green time
2.7.4 Maximum green time
2.7.5 All-red interval
2.7.6 Green extensions
2.7.7 Maximum reversion
2.8 Flashing yellow operation
2.8.1 Required operation
2.8.2 Conditions for automatic operation
2.8.3 Automatic restart facility
2.9 Sequence and timing of signal displays
2.9.1 Sequence
2.9.2 Timing
2.10 Monitoring and control
3 Functional requirements
3.1 General
3.2 Operator interface
3.2.1 Master controller
3.2.2 Slave controller
3.3 Visual monitors
3.3.1 Master controller
3.3.2 Lantern monitor
3.4 Lamp monitoring
3.5 Access to control and monitoring functions
3.6 Remote manual control facilities
4 Lanterns
4.1 General
4.2 Lantern type and performance
4.3 Aiming and adjustment
4.4 Target boards
4.5 Visors
5 Vehicle detection
5.1 General
5.2 Detection zone
5.3 Detection speed
5.4 Presence detection
5.5 Aiming and adjustment (for post-mounted detectors)
6 Power supply
6.1 General
6.2 Low-voltage cut-out
6.3 Motor-driven generator
6.4 Solar power system
6.5 Battery
6.5.1 Acceptable types of batteries
6.5.2 Battery bank capacity
6.5.3 Battery charging
6.5.4 Installation requirements
6.5.4.1 Compliance with AS/NZS 3001
6.5.4.2 Battery terminal clearance
6.5.4.3 Clearance between batteries
6.5.4.4 Battery shelf
6.5.4.5 Securing batteries
6.5.4.6 Ventilation
6.5.4.7 Battery cable connections
6.5.4.8 Battery use
6.5.4.9 Protective device
6.6 Mains power
7 Environmental requirements
7.1 Temperature and humidity
7.2 Enclosure ingress protection
7.3 Wind loading
7.4 Radio interference suppression
7.5 Surge and transient protection
7.6 Electromagnetic compatibility
7.7 Wireless communication configuration
Appendix A
Appendix B
B1 Introduction
B2 System elements
B3 Configurations
Appendix C
Cited references in this standard
[Current]
Safety of transformers, reactors, power supply units and combinations thereof, Part 2.6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers for general applications
[Current]
Electromagnetic compatibility (EMC), Part 6.1: Generic standards — Immunity for residential, commercial and light industrial environments
[Superseded]
Stationary batteries — Lead-acid, Part 2: Valve-regulated type (IEC 60896-2:1995, MOD)
[Current]
Approval and test specification - General requirements for electrical equipment
[Superseded]
Electrical installations - Transportable structures and vehicles including their site supplies
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