Re: 20mph is just the start.
 

"6 to 10 deaths" saved through pedestrian/vehicle collisions.

BUT

"In terms of air pollution, deaths attributed to nitrogen dioxide (NO2) may INCREASE by 63, and years of life lost by 753."

From the study they paid for https://www.gov.wales/sites/default/...qyReyJ0_8gzM0Q

Re: 20mph is just the start.
 

You appear to have accidentally left off some extremely relevant parts of that paragraph…

https://www.cableforum.uk/board/atta...5&d=1695646753

Re: 20mph is just the start.
 

Where I live there has been a 20 mph speed limit for the last two years but a lot of drivers tend to ignore this as there are no seed cameras. This was introduced by our Tory Council.

Re: 20mph is just the start.
 

The company that did the write-up admitted it was more "guesstimation" than correct statistical analysis. But the Labour-led Arsembly locked-on to the "6 to 10" figures, staying schtum about all the rest too.

The figures are there for all to see, if you could find them. Hence, I posted the link.

Re: 20mph is just the start.
 

I’d love to know how they worked that out. Did they carry out an experiment?

Re: 20mph is just the start.
 

A car doing 20mph is going to be on the same stretch of road for 50% longer, so if its putting out the same amount of pollution, you would expect the overall pollution level of that stretch to rise (by 50% ?). However, I dont know if a car puts out the same amount of pollutants at 20mph compared to 30mph.

Re: 20mph is just the start.
 

Not 30mph down to 20mph but I assume these finding are still relevant.
https://cairntechnology.com/speed-li...l%20pollutants.

A more scientific paper, long winded and also dealing with the effects of various transport/speed options on mental & physical health issues.

https://www.ncbi.nlm.nih.gov/pmc/art...ype%20of%20car).

Re: 20mph is just the start.
 

A pedestrian vs a modern car would suffer fewer injuries at 20mph than at 30mph due to all the safety features in car design these days. But against a HGV truck at the same speeds? Or even white-van-delivery-man rushing to get his drops done?

---------- Post added at 20:44 ---------- Previous post was at 20:41 ----------

I trust that involves a vehicle staying in the same gear.

My ULEZ-compliant car does 30mph in 4th at 1000rpm, but 20mph in 3rd at 1500rpm. It will stall in 4th before getting as low as 20mph.

Re: 20mph is just the start.
 

Think I'd rather be hit at 20mph than 30mph. Strange, I know.

Re: 20mph is just the start.
 

Even stranger, I'd rather not be hit at all. :dozey:

Re: 20mph is just the start.
 

I think that’s why they’re called "accidents", rather than "deliberates"… ;)

Re: 20mph is just the start.
 

Perhaps we could educate kids on how to cross the road. We’d have to come up with a snappy mantra. Code rhymes with road, Green for go, Cross ❎ the road. Just can’t think what to call it…….

Or we could just use animals, maybe a Squirrel?

Re: 20mph is just the start.
 

Tucked-away in the murky background is a decades-old mini charity called "Living Streets" that receives £millions from bodies like TfL each year.

They send people to schools to teach kids how to safely walk or cycle to school. But it was noted that they don't teach them how to safely cross roads, as they lean on local politicians to reduce speed limits around places where kids congregate.

Re: 20mph is just the start.
 

Noted by whom?

btw, HMG also fund Living Streets…

https://www.livingstreets.org.uk/new...king-to-school

https://www.livingstreets.org.uk/new...active-travel/

Re: 20mph is just the start.
 

Teachers and parents who were confused that whilst promoting walking and cycling, there was little or no input about road safety. They thought they were going to get a modern version of The Tufty Club or Green Cross Code.