The revision includes more than 250 new road signs used for regulating, warning and guiding road users. These signs provide clear and consistent messaging with the aim to support a reduction in the risk of crashes and road trauma. The standard also has information on the basic elements of signs, including shape, size, colour, lettering and symbols.

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“AS 1742.1:2021 is a must-have document for all practitioners working in the road design and traffic engineering sector in Australia. It is a quick reference where practitioners can find out what signs are available for use and where to find information about them,” said Thuan Nguyen, Chair of MS-012, Road Signs and Traffic Signals.

Traffic sign

The decrease is due in part to the Australian Government committing to improved road safety[2]. Standardisation plays an important role in supporting this commitment.

The recently published standard is: AS 1742.1:2021, Manual of uniform traffic control devices, Part 1: General introduction and index of signs

Singapore trafficsigns

AS 1742.1 is one of fourteen parts in the AS 1742, Manual of Uniform Traffic Control Devices, series. This part contains an index of all road signs allowed for use in Australia, including references to where users can find more information about each sign.

In the past year, there were 1,100 road related deaths in Australia[1]. Since the introduction of road record keeping in 1925, there have been over 190,000 deaths on our roads. However, there has been a substantial decrease in road trauma levels in the last four decades despite significant population growth.

Road signsin Thailand

(2) Hood or helmet supplied-air respirator operated in a continuous-flow mode (e.g., Type CE abrasive blasting respirators operated in a continuous-flow mode).

“With thousands of road deaths in Australia, having standards in place to help support safer roads is vital,” said Roland Terry-Lloyd, Head of Standards Development at Standards Australia.

“AS 1742.1:2021 is a must-have document for all practitioners working in the road design and traffic engineering sector in Australia. It is a quick reference where practitioners can find out what signs are available for use and where to find information about them,” said Thuan Nguyen, Chair of MS-012, Road Signs and Traffic Signals.

(2) Combination type continuous-flow supplied-air respirator with full or half facepiece and auxiliary self-contained air supply.

** Combination High-Efficiency/Organic Vapor Cartridges shall be used whenever Methylenedianiline is in liquid form or a process requiring heat is used.

Cotton dust concentration not greater than 10X the PEL: Any supplied air respirator;  not greater than 100X the PEL: Any supplied-air respirator with full facepiece, helmet, or hood; greater than 100X the PEL: Supplied-air respirator operated in positive-pressure mode.

Standards Australia has recently published AS 1742.1:2021, Manual of uniform traffic control devices, Part 1: General introduction and index of signs, which supersedes its 2014 predecessor.

(2) Positive-pressure full-facepiece supplied-air respirator equipped with an auxiliary positive-pressure self-contained breathing apparatus.

Road signsin Malaysia

The decrease is due in part to the Australian Government committing to improved road safety[2]. Standardisation plays an important role in supporting this commitment.

(2) Any powered air-purifying respirator equipped with approved butadiene or organic vapor cartridges or canisters.  Cartridges or canisters shall be replaced every [1] hour; or

Additionally, the standard includes more than 200 multi-message signs that have been harmonised for use at roadwork sites as described in AS 1742.3, Traffic Control for Works on Roads.

* A high-efficiency filter means a filter that is at least 99.97% efficient against mono-dispersed particles of 0.3 µm (micrometers) in diameter or higher.

(3) Any chemical cartridge respirator with an organic vapor cartridge which provides a service life of at least 1 hour for concentrations of vinyl chloride up to 10 ppm.

Note: Quantitative fit testing is required for all tight-fitting air-purifying respirators where airborne concentration of cadmium exceeds 10 times the TWA PEL (10 X 5 µg/m3 = 50 µg/m3).  A full-facepiece respirator is required when eye irritation is expected.

Revisions to the OSHA Respiratory Protection Standard (29 CFR 1910.134) became effective on April 8, 1998.  Incorporated within the preamble of this ruling were changes to OSHA regulations for several chemicals or substances, which are listed as subheadings in blue text throughout this appendix.  These subheadings, which are also the titles of the affected standards within 29 CFR 1910 and 29 CFR 1926, are followed by the standard number(s) in parentheses and the OSHA respirator requirements.  Fit testing is required by OSHA for all tight-fitting air-purifying respirators.   Please consult 29 CFR 1910.134 for the full content of the changes that apply.  For all of the chemicals listed in this appendix, any respirators that are  permitted at higher environmental concentrations can be used at lower concentrations.

(2) Powered air-purifying respirator (PAPR) equipped with a tight-fitting facepiece and approved butadiene or organic vapor cartridges.  PAPR cartridges shall be replaced every [1] hour.

“I would like to thank the Working Group, the MS-012 committee members, in particular the member representing the Victoria Department of Transport who was the Drafting Leader of this standard, Standards Australia and everyone else who have been working and contributing to the update of this standard,” Mr Nguyen concluded.

* A high-efficiency filter means a filter that is at least 99.97% efficient against mono-dispersed particles of 0.3 µm (micrometers) in diameter or higher.

AS 1742.1 is one of fourteen parts in the AS 1742, Manual of Uniform Traffic Control Devices, series. This part contains an index of all road signs allowed for use in Australia, including references to where users can find more information about each sign.

(2) Gas mask with front- or back-mounted canister which provides a service life of at least 4 hours for concentrations of vinyl chloride up to 25 ppm.

Road signsin Hong Kong

In the past year, there were 1,100 road related deaths in Australia[1]. Since the introduction of road record keeping in 1925, there have been over 190,000 deaths on our roads. However, there has been a substantial decrease in road trauma levels in the last four decades despite significant population growth.

(3) Powered air-purifying particulate filter respirator or combination chemical cartridge and particulate filter respirator for coke oven emissions.

“With thousands of road deaths in Australia, having standards in place to help support safer roads is vital,” said Roland Terry-Lloyd, Head of Standards Development at Standards Australia.

(2) Any particulate filter respirator or combination chemical cartridge and particulate filter respirator for coke oven emissions.

Additionally, the standard includes more than 200 multi-message signs that have been harmonised for use at roadwork sites as described in AS 1742.3, Traffic Control for Works on Roads.

** A high-efficiency filter means a filter that is at least 99.97% efficient against mono-dispersed particles of 0.3 µm (micrometers) in diameter or higher.

Road signsin Korea

Stop sign

(2) Full-face mask respirator with chin-style or front- or back-mounted type industrial size canister specifically approved for protection against formaldehyde.

* Half-mask respirators shall not be used for protection against arsenic trichloride, as it is rapidly absorbed through the skin.

* A high-efficiency filter means a filter that is at least 99.97% efficient against mono-dispersed particles of 0.3 µm (micrometers) in diameter or higher.

** A high-efficiency filter means a filter that is at least 99.97% efficient against mono-dispersed particles of 0.3 µm (micrometers) in diameter or higher.

* A high-efficiency filter means a filter that is at least 99.97% efficient against mono-disperesed particles of 0.3 µm (micrometers) in diameter or higher.

Germany traffic sign

(2) Any air-purifying full-facepiece respirator equipped with a front- or back-mounted butadiene or organic vapor canister.

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The recently published standard is: AS 1742.1:2021, Manual of uniform traffic control devices, Part 1: General introduction and index of signs

Standards Australia has recently published AS 1742.1:2021, Manual of uniform traffic control devices, Part 1: General introduction and index of signs, which supersedes its 2014 predecessor.

The revision includes more than 250 new road signs used for regulating, warning and guiding road users. These signs provide clear and consistent messaging with the aim to support a reduction in the risk of crashes and road trauma. The standard also has information on the basic elements of signs, including shape, size, colour, lettering and symbols.

Employees engaged in handling operations involving the carcinogens listed below must be provided with, and required to wear and use, a half-mask filter-type respirator for dusts, mists, and fumes.  A respirator affording higher levels of protection than this respirator may be substituted.

(2) Supplied-air respirator with a full facepiece operated in pressure-demand or other positive-pressure mode and equipped with an auxiliary escape-type self-contained breathing apparatus operated in pressure-demand mode.

(2) Any supplied-air respirator equipped with a full facepiece and operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in a pressure-demand or other positive-pressure mode.

** A high-efficiency filter means a filter that is at least 99.97% efficient against mono-disperesed particles of 0.3 µm (micrometers) in diameter or higher.

“I would like to thank the Working Group, the MS-012 committee members, in particular the member representing the Victoria Department of Transport who was the Drafting Leader of this standard, Standards Australia and everyone else who have been working and contributing to the update of this standard,” Mr Nguyen concluded.