Standard
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AS 1742.4:2020
[Current]Manual of uniform traffic control devices, Part 4: Speed controls
Specifies requirements for traffic control devices to be used for the regulatory control of traffic speed. Does not cover temporary speed limits or the use of advisory speed signs. KEYWORDS: Speed limit, road sign, control device
Published: 04/12/2020
Pages: 20
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Terms and definitions
2 Speed management
2.1 General
2.1.1 Objective of speed management
2.1.2 General principles
2.1.2.1 Determining speed limits
2.1.2.2 Installation of speed limit signs
2.2 Types of speed zones
2.2.1 Default speed limits
2.2.2 Speed zones
2.2.3 Length of a linear speed zone
2.2.4 Time based speed zones
2.2.5 Offset speed zones
3 Speed limit signing
3.1 Speed limit signs
3.1.1 General
3.1.2 Sign size
3.1.3 Signs for linear speed zones and default speed limits
3.1.4 Signposting of linear speed limits
3.1.5 Signposting of default limits
3.1.6 Repeater signs
3.1.7 Typical applications of speed limit signs
3.1.8 Area speed zones
3.1.9 School zones
3.1.10 Shared zones
3.1.11 Supplementary plates
3.1.12 Variable speed limits
3.2 Conflict with advisory speed signs
3.3 Pavement markings
Bibliography
Cited references in this standard
[Current]
Manual of uniform traffic control devices, Part 2: Traffic control devices for general use
[Current]
Paints and related materials — Pavement marking materials, Part 5: Performance assessment of pavement markings
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