this post was submitted on 22 Mar 2025
138 points (94.2% liked)

United Kingdom

4610 readers
147 users here now

General community for news/discussion in the UK.

Less serious posts should go in !casualuk@feddit.uk or !andfinally@feddit.uk
More serious politics should go in !uk_politics@feddit.uk.

Try not to spam the same link to multiple feddit.uk communities.
Pick the most appropriate, and put it there.

Posts should be related to UK-centric news, and should be either a link to a reputable source, or a text post on this community.

Opinion pieces are also allowed, provided they are not misleading/misrepresented/drivel, and have proper sources.

If you think "reputable news source" needs some definition, by all means start a meta thread.

Posts should be manually submitted, not by bot. Link titles should not be editorialised.

Disappointing comments will generally be left to fester in ratio, outright horrible comments will be removed.
Message the mods if you feel something really should be removed, or if a user seems to have a pattern of awful comments.

founded 2 years ago
MODERATORS
 

Even with the caveats about limited data and untangling causation and correlation, the statistics are striking: the first year of a scheme in Wales where the speed limit on urban roads was lowered to 20mph resulted in about 100 fewer people killed or seriously injured.

you are viewing a single comment's thread
view the rest of the comments
[–] TheGrandNagus@lemmy.world 3 points 1 week ago* (last edited 1 week ago) (1 children)

It seems obvious that a 20mph limit will be more safe in most instances.

There's the issue with older cars having a gearing not really suited to staying at that speed (meaning revving higher and chucking out more pollution/being louder), but that's less of an issue with new cars.

There's also the issue of a car in 2nd gear at 20mph being ready to take off far more easily if you were to accidentally press the accelerator instead of the brake – something which often happens in traffic incidents. But again, the gearing of more recent cars is typically fine with sitting at 20mph in third gear. Car gearing seems to be designed with 20mph in mind now, as more places are enforcing it inside and outside of the UK.

And honestly, in most circumstances it won't make a serious difference to travel time going 20 or 30. Either way you're likely going to be stopping multiple times or stuck behind people.

Worth noting though, that the very people who collected this data say that the data can't really be used for direct comparison and that we need at least a couple more years to see what the effect of the change is.