Fuck Cars
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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But the UK just released that 85% of drivers exceed 20 limits - particularly in roads that were not designed and don't "feel" like 20 mph roads.
These reductions in speed limits are primarily political, while corruptly funneling money to overpriced contractors and police running deceptive speed traps. They serve to give brownie points to the people patting themselves on the back for doing it, meanwhile they do nothing to actually make the road work properly. They'll just slap a new sign on and paint some lines which flow worse than a 6 year old's scribble.
Yes, they exceed the 20mph rule - by driving at 25. As opposed to exceeding a 30mph rule by driving at 33mph.
It still means fewer pedestrians crippled.
That's completely wrong. Compliance is much better for 30 mph roads, it's pretty much the other way around with 50% exceeding the speed limit but 82% driving less than 35. Meanwhile only 15% of drivers on measured roads follow 20 limits, with 50% of drivers going above 25. Source
It should be noted that the "measured 20 roads" are primarily roads that don't have traffic calming measures, which were designed and built for 30 but have had 20 signs slapped on them - but that's exactly what this proposal is about. When roads are built with the official recommended traffic calming measures, when the roads actually feel like 20 roads, then there's compliance. But that's not what they're doing here.
That's an issue in specific areas, not in every single part of every single 30 limit.
If you want 20 mph roads, then build 20 mph roads. Provide ongoing training for drivers. Don't just slap a sign up and jerk yourself off over it.
From your own source:
"For the 20mph sites (which are not thought to be representative of all 20mph roads), the average speeds were above the speed limit for all vehicle types, ranging from 22mph to 28mph but below the average speeds seen on the 30mph roads."
So the average speed does decrease, increasing safety. Just because the effect isn't a perfect 10 mph reduction doesn't mean that it does nothing.
This means the proposal is effective, but it could be improved with traffic calming measures.
The report goes into even more detail on this, the roads measured were primarily those without traffic calming measures. The overall subtext is that 20 mph roads should be built as 20 mph roads, including traffic calming as per the official recommendations. You shouldn't just slap a 20 limit on a road built for 30 - which is what this post is about for Wales.
What they're doing will increase noncompliance, not only in the areas where the road should be 30 but also in areas where it should be 20. It's a cheap blanket change that's more about political brownie points than actually achieving positive benefits.
Can we start with the 20 legal limit and then work out the infrastructure modifications needed?
Why not start with an assessment of which roads should be immediately reduced, which roads should be modified and then reduced and which roads should be left alone? Why not do that instead of a blanket change that pushes responsibility onto poorly funded local councils?
One measure is very effective and cheap. Every city, town and village in Wales becomes safer very soon by just reducing the speed limit.
Your proposal takes years to implement and incurs a massive cost and inconvenience to shut down many roads for weeks at a time. Just to make sure you reap the entire benefit of the changed speed limit. The extra benefit has a disproportionate cost to the proposed solution.
It's certainly very cheap, but only very effective in certain places. It's questionable whether it would be cheaper to target those places exclusively.