Speed limiters mandatory in new cars from 2022

Mercdriver

baza52 wrote: »

i read it would read the road speed signs to determine the speed limit for the road your on and not by using GPS.

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.

AdrianC

It'll be exactly what's currently in a lot of vehicles.



A mix of GPS/mapping database and sign-recognition camera. Nothing new, they've been around for years:-
https://www.carmagazine.co.uk/car-news/first-official-pictures/vauxhall/vauxhall-launches-speed-limit-detectors-on-insignia-2008/


Just... connected to the speed limiter. And legally required.

No rocket science. Who knows, it might even be fairly reliable in another three years.

motorguy

Mercdriver wrote: »

Do you think it is going to be that sophisticated? I suspect it will be more blunt than that in that the top speed will be limited to lower speed than it is now. Many hybrids have a top speed of around 111mph. I wouldn't mind betting that is where it will be levied.

Having a speed limiter that is dependent on GPS and GPS based information is too liable to be incorrect and someone would have to take responsibility for it. Aint gonna happen.

I think its going to read road signs, so will "know" if its a 40 or 30

motorguy

hareng wrote: »

Think you will find theyve made plenty of roads outside schools One Way , why because apparently kids dont look right and left.

Theres a village near me where parents lobbied for those "traffic calming" things where one car gets priority and the other has to stop and for ramps also in case their little darlings got hit by a car. Made a total mess of getting through the village.

Perhaps if they put as much effort in to teaching their little snowflakes not to play on the road as they did on the lobbying, we wouldnt have needed traffic calming?

Mercdriver

motorguy wrote: »

I think its going to read road signs, so will "know" if its a 40 or 30

But what about the below? Plus most English and Welsh motorways have no speed limit signs at all.

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.

zagfles

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.

Err...how would a driver know then? Chips aren't expensive anyway, probably cheaper than the metal for the signs.

zagfles

motorguy wrote: »

Theres a village near me where parents lobbied for those "traffic calming" things where one car gets priority and the other has to stop and for ramps also in case their little darlings got hit by a car. Made a total mess of getting through the village.

Perhaps if they put as much effort in to teaching their little snowflakes not to play on the road as they did on the lobbying, we wouldnt have needed traffic calming?

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.

zagfles

motorguy wrote: »

On the plus side, it will mean the 45MPH Freddy's who go everywhere at 45MPH - motorways, dual carriageways, towns, will actually have to slow to to 40MPH and then 30MPH for a change, so not all bad news.

But i do forsee - as some have said - situations whereby because the car is "letting" them do say, 40MPH then its ok for them to do so. For example, 40MPH past a school could be perfectly legal, but not at all wise. "Well my car said it was OK to do that speed".

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.

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.

zagfles wrote: »

Err...how would a driver know then? Chips aren't expensive anyway, probably cheaper than the metal for the signs.

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

Mercdriver

zagfles wrote: »

Err...how would a driver know then? Chips aren't expensive anyway, probably cheaper than the metal for the signs.

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? You haven't thought it through have you?

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.