Speed limiters mandatory in new cars from 2022

zagfles

Mercdriver wrote: »

So you think it sensible to have a car driving above the speed limit and the car allowing it because it sees a NSL when it should see a 30?

What, unlike now where the car "allows" it?

You haven't thought it through have you?

:rotfl:

The 'intelligent' methods being hinted at here are only as strong as its weakest point. The fact that many signs are vandalised and this would fool the system makes the system unworkable. In fact I suspect there would be more of them turned around, not fewer.

Yeah because drivers can see through turned around signs can't they

zagfles

Mercdriver wrote: »

nearly 14,000 posts and you haven't figured out multi-quoting...

Why would I want to reply to different points in different posts in one post??

baza52

Mercdriver wrote: »

But then what happens when vandals turn terminal signs around and your car thinks you are going into a 30mph limit and not a NSL? The only sure way would be to have chips in every sign and a receiver in the car. That would be prohibitively expensive to implement.

The car would base its speed on the last sign it saw.
Is turning signs around a major problem? Cant say i have ever read about it.
I can see it perhaps happening with a temporary sign but most speed signs are fixed in position.

Mercdriver

zagfles wrote: »

Unlike "well the sign said 30...". Idiots will use any excuse. But it should make things safer because there's one less thing to worry about - you can concentrate on the road not your speedo.

zagfles wrote: »

One of the advantages of this technology. Stop muppets exceeding the speed limit so remove the need for traffic calming measures like speed humps etc.

baza52 wrote: »

The car would base its speed on the last sign it saw.
Is turning signs around a major problem? Cant say i have ever read about it.
I can see it perhaps happening with a temporary sign but most speed signs are fixed in position.

Only the pole is fixed to the ground. The sign itself is attached to the pole. It is not at all uncommon for signs on one or both sides of the road to be pushed to face the incorrect direction. More often than not, it is just one of them, but in this case, which one does the system in the car follow?

You don't need to read about it, just actually look for signs yourself rather than rely on a system to do it for you. It is common enough for it to be a significant issue. Make it the only way that a car can be controlled externally in terms of speed, and it will become more common.

Like I say, my opinion is that they will use the blunt instrument of a lower maximum speed of the car itself.

baza52

jeez your a debbie downer.... Im sure things like this will be addressed before the system goes live.
I bet you were against seatbelts in case people got their head stuck in them.....

baza52

Mercdriver wrote: »

You don't need to read about it,

Like I say, my opinion is that they will use the blunt instrument of a lower maximum speed of the car itself.

Perhaps if YOU read what is due to happen you wont need to rely on your opinion and can rely on facts instead.

Mercdriver

baza52 wrote: »

jeez you're a debbie downer.... Im sure things like this will be addressed before the system goes live.
I bet you were against seatbelts in case people got their head stuck in them.....

Grow up. Don't be so ridiculous. It's a simple flaw. It's also not the only one. Using what you suggest, on joining the M4 at Junction 32, speed will limited to 40 since that will have been the last speed limit sign seen by the car, as in England and Wales, motorways have NSL unless otherwise signposted and there are no signs at any entry in England and Wales. This would require a law change in England and Wales, since in Scotland the speed is signposted. Clearly it's flawless :rotfl:

The ruling isn't even law at this stage - it is provisional and subject to change. Speed isn't the only aspect to consider for safety, and not all speed limits are set for safety reasons, so your safety belt analogy is fallacious.

Indout96

baza52 wrote: »

I bet you were against seatbelts in case people got their head stuck in them.....

As Mr Clarkson once said, replace the seat belt and airbag with a large spike in the centre of the steering wheel and people will drive a lot slower and with more care.


If you want to improve driver safety then get all cars to block mobile phone signals, got to be easier that this GPS speed system

Car_54

Mercdriver wrote: »

Grow up. Don't be so ridiculous. It's a simple flaw. It's also not the only one. Using what you suggest, on joining the M4 at Junction 32, speed will limited to 40 since that will have been the last speed limit sign seen by the car, as in England and Wales, motorways have NSL unless otherwise signposted and there are no signs at any entry in England and Wales. This would require a law change in England and Wales, since in Scotland the speed is signposted. Clearly it's flawless :rotfl:

1. There is indeed a sign at every m'way entrance, which doesn't explicitly show the speed limit but indicates that m'way regs apply, including the limit. On-board computer systems should easily be able to recognise that.



2. Signs are irrelevant anyway. If the news story is right, GPS is used. https://www.bbc.co.uk/news/business-47715415

AdrianC

Car_54 wrote: »

1. There is indeed a sign at every m'way entrance, which doesn't explicitly show the speed limit but indicates that m'way regs apply, including the limit. On-board computer systems should easily be able to recognise that.

Bear in mind that, elsewhere in the scope of these systems and legislation, this is a valid and common change-of-speed-limit sign that needs to be recognised and managed.