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AS 2353:2018

[Current]

Pedestrian push-button assemblies

Specifies requirements and tests for the design, construction and performance of push-button assemblies and associated equipment to facilitate pedestrian usage of signalized intersections or dedicated pedestrian crossings.
Published: 03/05/2018
Pages: 39
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
2 Push-button assembly
2.1 Colour and surface finish
2.1.1 Exterior of enclosure
2.1.2 Push-button
2.1.3 Direction arrow
2.2 Enclosure
2.2.1 Size and construction
2.2.2 Access to interior
2.2.3 Mounting arrangement
2.3 Terminal block
2.4 Push-button and switch mechanism
2.4.1 General
2.4.2 Design and construction
2.4.2.1 Push-button assemblies with moving parts
2.4.2.2 Push-button assemblies with no moving parts
2.4.3 Rating and mechanical endurance
2.4.4 Corrosion resistance
2.5 Pedestrian demand indicator light
2.6 Direction arrow and other symbols
2.7 Marking
3 Audio–tactile facility
3.1 Driver unit
3.1.1 Colour and finish
3.1.2 Enclosure
3.1.3 Terminal block
3.1.4 Wiring loom
3.1.5 Driver board dimensions
3.1.6 Driver board connector
3.1.7 Protection of driver unit
3.1.7.1 Protection against voltage transients and surges
3.1.7.2 Output circuit arrangement and protection
3.1.7.3 Operation at temperature extremes
3.2 Transducer
3.2.1 General
3.2.2 Shape and dimensions
3.2.3 Frequency response and sensitivity
3.2.4 Distortion of transducer output
3.2.5 Acceleration
3.2.6 Distortion
3.2.7 Electrical properties
3.3 Marking
4 Audio–tactile signals
4.1 Application
4.2 Required signal types
4.3 General requirements
4.3.1 Acoustic decoupling
4.3.2 Arrangement of microphone
4.3.3 Maximum output sound pressure level
4.4 Audible locating signal
4.4.1 General form of signal
4.4.2 Reference level
4.4.3 Automatic control of signal output
4.4.3.1 General
4.4.3.2 Sampling of ambient noise
4.4.3.3 Response to changes in sound pressure level of ambient noise
4.4.3.4 Response to changes in frequency content of ambient noise
4.4.4 Manual adjustment of acoustic output
4.5 Audible crossing signal
4.5.1 General form of signal
4.5.2 Initial transition signal
4.5.2.1 Required characteristics
4.5.2.2 Automatic control of signal output
4.5.3 Repetitive pulsed signal
4.6 Tactile locating signal
4.7 Tactile crossing signal
4.8 Off state
4.9 Safety interlock
4.10 Operation of audio–tactile signals
4.10.1 Locating signal
4.10.2 Crossing signal
4.11 Software
4.12 Electronic interface requirements
5 Electrical requirements
5.1 Electrical safety
5.2 Supply voltage
5.2.1 Driver unit power supply
5.2.2 For low voltage (LV) operation
5.2.3 For extra low voltage (ELV) operation
6 Environmental requirements
6.1 Weather resistance
6.1.1 Drainage facilities
6.1.2 Required protection
6.2 Environmental conditions
6.3 Electromagnetic compatibility
6.3.1 Immunity to interference
6.3.2 Emission of electromagnetic radiation
Appendix A
Appendix B
B1 Introduction
B2 Sensitivity of locating signal
B2.1 Equipment arrangement and measurement environment
B2.2 Measurement equipment and conditions
B2.3 Measurement of driver unit output
B2.3.1 Output of audible locating signal
B2.3.2 Output in off state
B2.4 Measurement of transducer output
B3 Input frequency response characteristic
B4 Frequency response of transducer
B5 Distortion of transducer output
Appendix C
C1 Introduction
C2 Sensitivity of traffic noise sensing microphone
C2.1 General
C2.2 Preconditioning
C2.3 Measurement
C3 Frequency response of transducer
C3.1 General
C3.2 Preconditioning
C3.3 Measurement
C4 Performance of electronic circuit
C4.1 General
C4.2 Preconditioning
C4.3 Measurement
C5 Linearity of system performance
C6 Variations to specified tolerances
Appendix D
D1 Introduction
D2 Audible locating signal
D3 Tactile locating signal
D4 Audible crossing signal
D5 Tactile crossing signal
Appendix E
Cited references in this standard
[Withdrawn]
Conduits and fittings for electrical installations, Part 7: Rigid metal conduits and fittings
[Current]
Conduits and fittings for electrical installations, Part 4: Flexible plain conduits and fittings of insulating material
[Current]
Aluminium and aluminium alloys — Anodic oxidation coatings
[Current]
ISO metric hexagon socket head cap screws
[Current]
Traffic signal lanterns
Content history
[Superseded]
DR AS 2353:2017
$135.16
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