Strangely Brown wrote:Is that because they're all queued up behind you, John?
I wonder. Might have to use the rear view mirror to check that out.
20 limits - 'the facts'...
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jcochrane
- Posts: 627
- Joined: Mon Sep 28, 2015 9:53 pm
- Location: Surrey-Kent borders and wherever good driving roads are.
Re: 20 limits - 'the facts'...
I wonder. Might have to use the rear view mirror to check that out.
Re: 20 limits - 'the facts'...
And so it begins ... https://www.telegraph.co.uk/news/2022/1 ... vent-road/
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GTR1400MAN
- Posts: 2210
- Joined: Fri Apr 29, 2016 12:23 pm
Re: 20 limits - 'the facts'...
Triquet wrote:And so it begins ... https://www.telegraph.co.uk/news/2022/1 ... vent-road/
Article behind pay wall.
Mike Roberts - Now riding a Triumph Explorer XRT. My username comes from my 50K miles on a Kawasaki 1400GTR, after many years on Hondas of various shapes and styles. - https://tinyurl.com/mikerobertsonyoutube
Re: 20 limits - 'the facts'...
Restricting speed limits to 20mph in town and city centres has little impact on road traffic collisions and casualties, researchers have found.
Speed limits have been lowered from 30mph in hundreds of urban areas across Britain in the last 20 years, with London due to bring in blanket 20mph restrictions for all inner-city roads by 2024.
But experts from Queen’s University Belfast found that although the limits reduce traffic volume they do little to stop accidents - largely because they are often ignored.
The team gathered traffic and accident data in 2013 and 2014 in Belfast and compared it to 2017, a year after 20mph restrictions were imposed, and in 2019, three years later.
The data was also compared to city centre streets where the restrictions didn’t apply, as well as streets in the surrounding metropolitan area and similar streets elsewhere in Northern Ireland that had all retained their speed limits between 30 and 40mph.
Analysis of all the data showed that when compared with the sites that had retained their speed limits, a 20mph speed limit was associated with little change in short or long-term outcomes for road traffic collisions, casualties, or driver speed.
'Significant reductions in road traffic volume'
Average traffic speed fell by only 0.2 mph in the first year and by 0.8 mph after three years.
Ruth Hunter, a professor of public health and planetary health at Queen’s University Belfast said: “We did find reductions in casualties and collisions. However, these were generally small, and we could not be certain that they were not beyond a chance finding hence not statistically significant.
“We did observe significant reductions in road traffic volume. The 20mph speed limit may have reduced traffic volume due to changes to alternative routes or change in travel mode.
“Our evaluation highlights that some drivers were unaware of the 20mph speed limit intervention and that enforcement was unlikely.
“In general, the mean speed pre-implementation across most streets was below 20mph, which questions if a 20mph speed limit intervention was necessary in Belfast city centre”
Reduced speed limits known to prevent deaths
Many towns and cities have brought in reduced speed limits to prevent deaths. At traffic speeds of 30-40 mph, the risks of pedestrian fatalities are 3.5-5.5 times greater than at speeds of 20-30 mph.
Some cities have also shown significant reductions in road traffic speed, collisions and casualties by bringing in lower speed limits, such as Edinburgh.
Road deaths fell by nearly a quarter and serious injuries by a third when Edinburgh cut its speed limit to 20mph.
The research was published in the Journal of Epidemiology and Community Health.
Speed limits have been lowered from 30mph in hundreds of urban areas across Britain in the last 20 years, with London due to bring in blanket 20mph restrictions for all inner-city roads by 2024.
But experts from Queen’s University Belfast found that although the limits reduce traffic volume they do little to stop accidents - largely because they are often ignored.
The team gathered traffic and accident data in 2013 and 2014 in Belfast and compared it to 2017, a year after 20mph restrictions were imposed, and in 2019, three years later.
The data was also compared to city centre streets where the restrictions didn’t apply, as well as streets in the surrounding metropolitan area and similar streets elsewhere in Northern Ireland that had all retained their speed limits between 30 and 40mph.
Analysis of all the data showed that when compared with the sites that had retained their speed limits, a 20mph speed limit was associated with little change in short or long-term outcomes for road traffic collisions, casualties, or driver speed.
'Significant reductions in road traffic volume'
Average traffic speed fell by only 0.2 mph in the first year and by 0.8 mph after three years.
Ruth Hunter, a professor of public health and planetary health at Queen’s University Belfast said: “We did find reductions in casualties and collisions. However, these were generally small, and we could not be certain that they were not beyond a chance finding hence not statistically significant.
“We did observe significant reductions in road traffic volume. The 20mph speed limit may have reduced traffic volume due to changes to alternative routes or change in travel mode.
“Our evaluation highlights that some drivers were unaware of the 20mph speed limit intervention and that enforcement was unlikely.
“In general, the mean speed pre-implementation across most streets was below 20mph, which questions if a 20mph speed limit intervention was necessary in Belfast city centre”
Reduced speed limits known to prevent deaths
Many towns and cities have brought in reduced speed limits to prevent deaths. At traffic speeds of 30-40 mph, the risks of pedestrian fatalities are 3.5-5.5 times greater than at speeds of 20-30 mph.
Some cities have also shown significant reductions in road traffic speed, collisions and casualties by bringing in lower speed limits, such as Edinburgh.
Road deaths fell by nearly a quarter and serious injuries by a third when Edinburgh cut its speed limit to 20mph.
The research was published in the Journal of Epidemiology and Community Health.
Re: 20 limits - 'the facts'...
Unfortunately this study is unlikely to have relevance to the London situation - where there is enforcement and hence marked reduction in average speeds at less congested times of day, and where 20 mph limits are likely to be so universal that there are no satisfactory diversions to avoid them.
Re: 20 limits - 'the facts'...
GTR1400MAN wrote:Triquet wrote:And so it begins ... https://www.telegraph.co.uk/news/2022/1 ... vent-road/
Article behind pay wall.
Use 12 foot ladder. Completely legal.
https://12ft.io/proxy?q=https%3A%2F%2Fw ... nt-road%2F
Your 'standard' is how you drive alone, not how you drive during a test.
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Mr Cholmondeley-Warner
- Posts: 1118
- Joined: Sun Sep 27, 2015 7:01 pm
- Location: Swindon
Re: 20 limits - 'the facts'...
Taxi driver just now done at 24 mph in Marylebone Rd.
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Strangely Brown
- Posts: 1018
- Joined: Sun Sep 27, 2015 8:06 pm
- Location: Sussex
Re: 20 limits - 'the facts'...
Horse wrote:GTR1400MAN wrote:Triquet wrote:And so it begins ... https://www.telegraph.co.uk/news/2022/1 ... vent-road/
Article behind pay wall.
Use 12 foot ladder. Completely legal.
https://12ft.io/proxy?q=https%3A%2F%2Fw ... nt-road%2F
Archive.ph tends to work better for paywalled sites.
https://archive.ph/
Just copy/paste the URL that you want to read into the appropriate field and Robert's your Mother's brother.
Re: 20 limits - 'the facts'...
12ft ladder was pulled by the hosting company
Your 'standard' is how you drive alone, not how you drive during a test.
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