New High tech cameras to enforce 20mph roads

Whilst the sweet spot of the engine in terms of efficiency may make a slight difference this is not significant.

So, the mechanics and physics are quite clear. Smoother driving to a lower limit will always require less energy, less fuel and produce fewer emissions than repeatedly accelerating to a higher limit
SMOOTHER driving, you say...
What about the thousands of roads in London where there's no traffic, especially during certain hours, where everyone is crawling at 20mph polluting more than when they were smoothly driving at 30 or 40 mph with engine hitting a "sweeter spot"?
20mph limit should be only where there's real need, near schools, narrow roads, etc.
The emperor wants all roads within the M25 at 20mph.

And, as a sideline, he now wants to impose a new tax on SUVs.
That includes family cars like the Ford Kuga.
In the meantime he travels in a convoy of 3 armoured Range Rovers (£400k each paid by us) and 2 marked police cars (paid by us) at any speed he likes because they stop traffic when he's on the move.
 
keep going - you can lead a troll to truth but you can't make him think.:mrgreen:
It's weird. It's almost like they know speed is a factor but would rather squirm and bullshít their way around it. And when they see that deaths and serious injuries has fallen since the introduction of the 20MPH limit, they refuse to believe their own eyes.

Trés odd.
 
Speed does not kill, abysmal driving standards & pathetic attitudes to fellow motorists does.
Not to mention people walking across the road staring at their screens, and food delivery bikes weaving in and out of traffic and on pavements, wearing no hi-vis, helmets or lights.
Personal responsibility of individuals has been replaced with infantilisation of the masses.
 
Speed does not kill, abysmal driving standards & pathetic attitudes to fellow motorists does.
Or like in my diverse town the local communities send somebody else to sit the practical test for a learner driver. Could be why the local community driving is so bad either that or they do not accept man made laws when it comes to speed and seat belts and the amount of people a car can legally carry or thinking holding a child on their knee is a correct child restraint seat..
 
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How many stationary vehicles are responsible for pedestrian deaths, v's those vehicles travelling at speed? The speed of the vehicle in a collision is always a factor, regardless of who is driving.
Lower speed at impact causes less damage, obviously, but it doesn't follow from that that a given stretch of road will have a lower overall casualty rate with a lower limit.
And the argument that lower speed is safer can be used all the way down to zero speed, but not many people suggest that.
 
The 20mph is absolute nonsense, and will remain so, unless it is enforced, and enforcement is quite rare. I've just done a bus trip, to and from the local town, sitting at the front, of a double-decker, where I was easily able to see the driver's own speedo. Unlike car speedometers, these are accurately calibrated, rather than the actual +10%. Both there, and back, we progressed through several marked 20 limited villages. The 20 on both trips, was completely ignored, we were doing an indicated 30 and 30+ through most of those.

I live on a residential road, in a village, with a blanket 20mph throughout, and at the moment and for several months, they have regularly been closing the busy railway line down, running a rail replacement bus service, down our residential street. We have two tight bends in the road, which are a precise 100yard distance apart, with a T-junction another 100 yards beyond. From my home, I can easily see, and time their progress twice over two chances. From the timing, I can easily calculate their average speed over the distance.

I often time them as doing in excess of 30mph, these are large luxury, single deckers, sometimes double-deckers tearing along a residential road, often with parked vehicles, and drivers reversing out of their drives. I have complained to the authorities, but no one seems to care.

The 20 limit is not there for safety, or to improve the local amenity - it's there simply as a money earner for local authorities, to gain points, and top up their funding when they need to.

They might be professional drivers, but a bus can do an awful lot more damage than a car...
 
The 20 limit is not there for safety, or to improve the local amenity - it's there simply as a money earner for local authorities, to gain points, and top up their funding when they need to.
I'm sure what you say is true, but if it were just a money earner, you'd expect they'd be out there booking drivers. IMO 20 mph zones are decided by people who can't drive and have a grudge against those who can.
 
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