Mr Kobayashi
Well-Known Member
- Joined
- 1 Oct 2020
- Messages
- 17,098
You don't need to drive at any speed in any area. You drive at a speed that is safe for the road conditions. 30mph as a maximum speed is a perfectly safe speed to drive at in a residential area.
If you widen the debate to include air quality, which is what Drakeford has done, reducing the speed limit to 20mph makes air quality poorer as the vehicle is in 2nd gear and using more fuel, the likelihood of congestion increases further reducing air quality and leads to driver frustration which, whilst wrong, is a human trait and it does cause accidents.
All in all, a very poorly thought out policy.
No misty you are wrong. Imperial College London conducted a study in London and found no net negative effect on air condition.
If you have an area where there are roads with 20 and 30 mph, you will be accelerating and braking more often and using more fuel than you would if you were just going along at a steady pace.
Modern cars can drive at lower speeds in 3rd or 4th gears.