Today marks the 20th anniversary of the metrication of speed limits in the Republic of Ireland. 20 January 2005 was the day that all speed limits in Ireland switched from mph to km/h.
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Author: Isaac
Does the Traffic Signs Manual promote the illegal use of imperial-only vehicle restriction signs?
Eight years after the Traffic Signs Regulations and General Directions (TSRGD) were updated to require all new vehicle restriction signs to show vehicle width and height restrictions in both metric and imperial units, the Department for Transport’s Traffic Signs Manual (TSM) has still not been fully updated to take account of the fact that new imperial-only vehicle restriction signs are no longer authorised.
The health benefits of switching to metric beer sizes
This week saw the publication of research into the effects of reducing the standard serving size of draught beer in the UK.
The University of Cambridge study was described by its leader as being “the first real-world study to look at this”. It shows that reducing the current standard beer glass size in bars, pubs and restaurants from the current pint (568 ml) size has the potential to reduce the total amount of alcohol consumed in the UK, and should be given consideration as part of the Government’s fight to reduce the effects of alcohol consumption on health.
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Which non-SI units are accepted for use with the SI?
SPOILER ALERT:
The official UK and USA metrology websites are INACCURATE
Since the inception of the International System of Units (SI) in 1960, it has always been recognised that some non-SI units, such as the litre, minute and hour, are “widely used and are expected to continue to be used for many years”.
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Non-metric units in the Paris 2024 Olympic Games
If like me, you are a fan of the Olympic Games, over the last 16 days you have probably enjoyed seeing the metric system used almost exclusively in TV coverage of the Games. It seems that the tendency, all too common in the 1970s, for British TV commentators to convert heights jumped, and distances thrown, into feet and inches, is definitely a thing of the past.
However, whilst most of the events, such as athletics, swimming and cycling, could be said to be exclusively metric, a few events still made use of non-metric measurement units.
Now that the Paris 2024 Olympic Games have come to a close, we take a look at some of the last hold-outs of non-metric units.
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50 years of metric road signs in Australia
1 July 2024 marks the 50th anniversary of the switch to metric road signs in Australia.
For about a year before the change, car manufacturers fitted dual speedometers to their vehicles and, after 1974 all new cars were fitted with metric-only speedometers. Several kinds of speedometer conversion kits were available. As a result of all these changes, conversion on the roads occurred without incident.
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Do our motorway junction numbers hinder the use of driver location signs?
Recent Metric Views articles have discussed the poor awareness of the meaning of driver location signs amongst the general public, and argued that despite their inclusion in recent editions of the Highway Code, there is still a need for a new public information campaign about these signs.
However, could there be another reason why driver location signs are poorly understood? And is there a solution that would both increase public awareness and increase their use?
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How did campaigners for the metric system get their message across 120 years ago?
120 years ago, in addition to the activities of their members, the Decimal Association made use of pamphlets to make their case for the adoption of the metric system in place of the bewildering array of imperial weights and measures that were in use at the time.
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House of Lords votes in favour of full adoption of the metric system
With the Queen’s Diamond Jubilee still fresh in people’s memories, and with a new King on the throne, it is a momentous time in our country’s history as the House of Lords votes unanimously to switch to the sole use of the metric system for all official purposes within a 2-year period.
The vote was undoubtedly influenced by the massive public support recently expressed in favour of the metric system.
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What are binary prefixes?
When four new SI prefixes were added to the International System of Units (SI) in November 2022, one of the main reasons cited for their need was for their use in data science, where the numbers involved in describing quantities of information have become ever larger. e.g. The amount of data generated by the internet is projected to hit 175 zettabytes by 2025.
Metric Views 