The hot rodders will disable this. That's how it's been for decades. Hotrods always went faster than speed limits.
It will be tied into the car's computer, and any attempt to deactivate it will result in disabling the car.
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The hot rodders will disable this. That's how it's been for decades. Hotrods always went faster than speed limits.
What if there is a temporary speed restriction at the time of surveying? And who will keep the speed limit database for all roads up to date, constantly? It's completely unfeasible. Europe has millions of miles of road, no database will have the speed limit for all of them up to date.
Yeah, I've seen one of those systems tested in real world scenarios:Some cars use the built in cameras that read the lanes for adaptive cruise control, to also "read" the speed limit signs. Our GLC has it, and so far it has been completely accurate, much more accurate then the GPS/map based version I have with Andoid auto.
The tricky bit though are the miles of adaptive speed limits they have in Germany and some parts of France (maybe elsewhere) where the speed limit signs are digital billboards that change dynamically as traffic increases. I don't think the camera system reads those signs, I'll check next time I'm driving the GLC on the Autobahn.
Some cars use the built in cameras that read the lanes for adaptive cruise control, to also "read" the speed limit signs. Our GLC has it, and so far it has been completely accurate, much more accurate then the GPS/map based version I have with Andoid auto.
The tricky bit though are the miles of adaptive speed limits they have in Germany and some parts of France (maybe elsewhere) where the speed limit signs are digital billboards that change dynamically as traffic increases. I don't think the camera system reads those signs, I'll check next time I'm driving the GLC on the Autobahn.
Yeah, I've seen one of those systems tested in real world scenarios:
Can they make the systems completely infallible in 2 years? I doubt that. Or if they can then we're better off with fully self driving cars, mixing a human with a robot, is a recipe for disaster.
- It often mistakes the speed limit of the sliproad for the speed limit of the highway
- It will detect all signs with a similarly sized number on them as a speed limit, even those that actually mark the end of a speed restriction zone, or the number of the highway exit.
- They can't recognize conditional speed restrictions (you should be familiar with "bei nasse"), And that has completely different versions in different countries, for us it's an actual picture of a stormcloud.
- What about sections where different lanes have different speed limits?
- What about vandalized speed signs that have spraypaint over them?
I don't doubt it works 99% of the time. However if they want to enforce speeds it needs to read the speed limit correctly all the time.And I have used the system repeatedly with no noticable issues. To include the circle with crossed out number for the end of the speed restrictions. It also reads the passing restrictions on B roads.
I do not recall it ever popping up a speed restriction for Bei Nass limits, but it may recognize the fact those signs have a specific symbol (Bei Nass with a car over wavy lines).
The only one I question are the digital billboard signage. But those symbols are exactly the same circle with the limit inside, just via LED billboards.
Not really sure about different speed limits in different lanes. However at least in Germany the speed limit signs are posted on both the left and right side of the road, or on billboards that span the highway when there are several lanes.
One other time it can fail though is if you are in a center lane, and the sign is obstructed by a truck on one side, and another vehicle on the other.
Mercedes and BMW have had the system since 2008, some other manufacturers, like VW and Volvo have had it since at least 2012, so they will not be designing a system in only two years, the technology already exists and is in use.
As much as I hate quoting Wiki, thier page on the system has a list of cars that have a working traffic sign reasing system. It is a pretty big, incomplete list.
But like I said, in my practical experience, the system works very well and is significantly more accurate then the GPS/map based systems.
The bigger issue will be the EU enforcing the standardization of road signs needed for a system like this to be included as a standard feature.
Edit: And this is not to say I agree with the ruling, it is idiotic, just that the sign systems work, in my experience.
I don't doubt it works 99% of the time. However if they want to enforce speeds it needs to read the speed limit correctly all the time.
The driver wouldn't slow to 30 on a highway even if he mistook a 130 sign for 30.Maybe, but I'd be willing to bet it is more accurate and reads the signs better than the average driver.
The driver wouldn't slow to 30 on a highway even if he mistook a 130 sign for 30.
Which is way better than forcing the car to slow down to 30 on the middle of a highway. I mean come on, this is not hard to figure out, why do I need to spoon feed this to you? Or are you just another contrarian?No, they wouldn't see the sign at all.
Which is way better than forcing the car to slow down to 30 on the middle of a highway. I mean come on, this is not hard to figure out, why do I need to spoon feed this to you? Or are you just another contrarian?
Original poster omitted "Driver can override system by pushing harder on accelerator". Nobody really looked at the article? Moral outrage is cheap. kthxbye
Yea i spotted that, i suppose it depends how much it interferes, basically every car is going to feel like it has turbo lag?
No i totally am. People drive 70 mph all the time on a speed limit of 50 and there aren't a constant barrage of flaming wrecks left and right on that highway.70 vs 50 definitely matters. I don't think you understand all the physics or variables involved even though you seem to want to say "without going into the physics". "Physics" is what they use to test out the various theories and why they choose certain speeds for certain roads. You also are not at all considering the variable of the different drivers. You really aren't considering any variables at all other than straight line speed in a controlled scenario.
Heh. In my limited times driving in Europe, almost nobody follows the speed limit. In Ireland, I recall people driving 50 MPH in a 50 KMH zone. In Italy, it was even worse. In Austria, in dense fog , at night, in the mountains, people flew past us like were were parked.
In the U.S., I recall a cop saying, while writing me a ticket, "you have cruise control. Set it to 9mph over the limit and nobody will mess with you."
So 9mph seems like the limit.
5mph under is dangerous. IMO, unless the weather is bad.
It was the republic. Haven't made it to Northern Ireland yet (though I'm surprised they aren't metric. I thought all of the UK was metric (though I've never driven in England. I'll add it was almost 20 years ago that I"m referring to. I drove there 2 years ago, but it was mostly back roads mostly after a Ophelia hit (which caused way more damage that a Cat 1 would on the Gulf Coast.You sure about the Ireland Drivers speeding? Part of the country uses MPH (Northern Ireland), while the other use KMH (Republic of Ireland).
UK is completely old school mph.It was the republic. Haven't made it to Northern Ireland yet (though I'm surprised they aren't metric. I thought all of the UK was metric (though I've never driven in England. I'll add it was almost 20 years ago that I"m referring to. I drove there 2 years ago, but it was mostly back roads mostly after a Ophelia hit (which caused way more damage that a Cat 1 would on the Gulf Coast.
It's possible that things have changed, but I didn't drive mroe than a few miles at a time and I don't recall how fast we were going (it was a bit of a caravan).
Only place I've seen metric used is Arizona. For at least 45 or 50 years their highways have had speeds in kmh and mph (think the distances are in both too, but I could be wrong).UK is completely old school mph.
Odd thing, before the internet most people here thought the USA was metric lol.
ps mainland Ireland is also known as Eire (in Irish).
Temporarily.Original poster omitted "Driver can override system by pushing harder on accelerator". Nobody really looked at the article? Moral outrage is cheap. kthxbye
I know it's hard to admit when you're wrong.edit: Not worth replying