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New EU rules on car speed limiters coming into force

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Re: New EU rules on car speed limiters coming into force

#42
post #4

Earlier quoted context omitted.

Minus the word "incredibly" which is quite an exaggeration, I agree. But, it can be made pretty safe. Entirely safe in fact, for good drivers (less so for shoddy ones) The fine details of implementation are not noted so we can only speculate. I would hope it's designed to very gradually start limiting the speed after X seconds of alerting the driver. That said, even the most naive design, which would work the same as…

Actually I find this stuff pretty annoying already. Cars nowadays (some do it worse than others) "alert" you of lots of stuff. Such as "lane departure" beeps if you didn't use the blinker. Yes sure, using the blinker is a good idea. Is it really 100% necessary in all situations? Absolutely not. Of course technically the beeping car is correct and making you adhere to the rules of the road. In practice it's just annoy…

I haven't used a car with one of the speed systems so I don't really know enough to judge hope reliable it is, which is an important factor in evaluating it.

I do disagree with your justifications though. To start with for indicators it is true that sometimes they aren't necessary, in fact with everyone driving appropriately they shouldn't ever be needed to avoid crashes. However people are pretty bad at judging their abilities and habits are a pretty strong effect. So sometimes you mess up your observations but then if you indicate anyway the other road users are more able to fix your mistake. Also by indicating every time you build the habit and are much less likely to forget to indicate when you should.

It is fun trying to come up with situations where speeding up to avoid a collision is needed but in practice this is really dangerous. If you brake to avoid a collision then if the avoidance fails the result is less bad. Any cases where braking isn't going to let you avoid a collision must be situations where you have very little time to react since cars can change speed more rapidly by braking (limited by traction in any vaguely modern car). So the situations where you need to speed to avoid a collision are ones with very little time to process, where you have one known bad road user (since otherwise you wouldn't be at risk of a collision). Bad road users are unpredictable. All these factors make it really dangerous to accelerate into a hazardous situation. Instead you should train yourself to drive defensively and react to road dangers by braking as a first response. Again it is best to build a habit since you have very little time to evaluate and react to these situations.

I agree with you about the shoddy drivers, I don't drive a large amount so I'm aware that my driving skills aren't super high. Because of this I consciously drive defensively, don't drive fast to give more reaction time, leave a larger gap to other vehicles. Having lots of shoddy drivers is a great reason to have speed limiting technology because most of them overestimate their skill and speed. In the UK a large majority of drivers regularly speed and this has a pretty direct link to increased injuries and deaths.

Re: New EU rules on car speed limiters coming into force

#43
post #17
post #6

This is great, data shows that beeping is effective for increasing seatbelts usage, I see no reason why this wouldn't apply to speeding. I hope they take this a step further. Cars should not be able to exceed 90mph unless you have a special license for the track. 99.9% of drivers are not tracking their car and theres absolutely no reason a 6000lb pick up truck needs to go 150mph under any circumstance. https://www.nc…

How often do your seatbelt warning give out false positives? How high false rate would people accept before they removed/rigged the device? One major reason why ignition locks that uses breathalyzers has failed to gain popularity is false positives. Police always do a blood test after a positive breath test, because those breathalyzers have know faults when it comes to a number of substances, including bread, fruit,…

In my experience 1 instance of a false positive is enough to get people to circumvent the system (going by how the seatbelts in our current car are always plugged in, with or without passengers, to avoid random warnings). Turns out it's quite annoying (and possibly dangerous) to drive with random sudden beeping.

Re: New EU rules on car speed limiters coming into force

#44
post #6

This is great, data shows that beeping is effective for increasing seatbelts usage, I see no reason why this wouldn't apply to speeding. I hope they take this a step further. Cars should not be able to exceed 90mph unless you have a special license for the track. 99.9% of drivers are not tracking their car and theres absolutely no reason a 6000lb pick up truck needs to go 150mph under any circumstance. https://www.nc…

> Cars should not be able to exceed 90mph unless you have a special license for the track.

People driving on racetracks do not necessarily have licenses. They neither necessarily have a license to drive a car on the road, nor do they necessarily have sanctioned racing licenses.

Even if this suggestion did make sense, we have no mechanism to enforce it. People in the US drive without valid licenses all of the time. The car has no idea if you have a license at all, let alone which ones.

Re: New EU rules on car speed limiters coming into force

#45
post #24

I think the title is a bit misleading. The mandate is for intelligent speed assistance. I own a car with such a feature and I think it's already pretty common in higher-end vehicles even without the mandate. The form it takes in my car is that there's a little symbol with the current speed limit displayed on the HUD. The speed limit is sourced from road signs or the car's navigation data. When you exceed the speed li…

> However if you never turn on "cruise control", the feature is nothing but an easy to ignore red symbol on your HUD.

So I drove a rental car that had this feature enabled and I found it not only infuriating but distracting as well.

It didn't help that it would come on at the worst possible times. Like when I was driving and had to change lanes to pass someone or let another car in. This is exactly the time where I want to be completely focused on what I'm doing and instead I have a notification on my dash going `ding! you went 5kph` over the speed limit.

Re: New EU rules on car speed limiters coming into force

#46
post #24

I think the title is a bit misleading. The mandate is for intelligent speed assistance. I own a car with such a feature and I think it's already pretty common in higher-end vehicles even without the mandate. The form it takes in my car is that there's a little symbol with the current speed limit displayed on the HUD. The speed limit is sourced from road signs or the car's navigation data. When you exceed the speed li…

Honestly, if this is how it's implemented in every car (the article just vaguely says that some cars slow down automatically, without specifying how easy it is to override), then this is a surprisingly reasonable implementation. (Surprising, because politicians, especially in Europe, tend to go for reality-ignoring nanny-state solutions nowadays).

I think doing it in a way that's respectful of the owner is a good way to do it in the long term. It gets most of the benefit, and by not creating a "us vs. them" mentality, it avoids both political backlash that makes future regulations (including sensible ones) hard, and the backlash effect that causes people to behave in undesirable ways out of spite/defiance (think "coal rolling").

Edit: It seems (https://news.ycombinator.com/item?id=31994739) like they explicitly mandated putting the driver in control. Bravo!

Re: New EU rules on car speed limiters coming into force

#48
post #24

I think the title is a bit misleading. The mandate is for intelligent speed assistance. I own a car with such a feature and I think it's already pretty common in higher-end vehicles even without the mandate. The form it takes in my car is that there's a little symbol with the current speed limit displayed on the HUD. The speed limit is sourced from road signs or the car's navigation data. When you exceed the speed li…

my car has these features and sometimes thinks the speed limit is 100mph in residential neighborhoods

I've seen 30 recognized as 80mph. Clearly the system didn't even have a plausibility check: in the UK 80mph isn't a legal limit!

It also gets confused when there are overpasses or tunnels crossing the road, and the nav-based speed limit flips from 70mph to 15mph to 70mph.

Re: New EU rules on car speed limiters coming into force

#49
post #32
post #24

I think the title is a bit misleading. The mandate is for intelligent speed assistance. I own a car with such a feature and I think it's already pretty common in higher-end vehicles even without the mandate. The form it takes in my car is that there's a little symbol with the current speed limit displayed on the HUD. The speed limit is sourced from road signs or the car's navigation data. When you exceed the speed li…

the problem is that the car will limit your speed. it will not just alert you. this is incredibly dangerous as sometimes you need to drive over the speed limit to avoid accidents or dangerous drivers. instead of introducing this they should send drivers to driving school and make the police check driver licenses more often and arrest those driving without a license. in germany you can drive at any speed you want in c…

I have never really liked that in the USA, the posted speed limit is both the normal speed of travel and the maximum speed permitted. I think legally there should be some allowance for exceeding the speed limit when passing. We have some sections where one must move into the opposing traffic lane to pass, and you have to go over the posted limit to do this. I wonder how the self driving AI software accounts for this.

Re: New EU rules on car speed limiters coming into force

#50
post #48

Earlier quoted context omitted.

my car has these features and sometimes thinks the speed limit is 100mph in residential neighborhoods

I've seen 30 recognized as 80mph. Clearly the system didn't even have a plausibility check: in the UK 80mph isn't a legal limit! It also gets confused when there are overpasses or tunnels crossing the road, and the nav-based speed limit flips from 70mph to 15mph to 70mph.

ah i have seen 80 before, that could explain it it was never clear to me if it was reading the signs or just basing it off of map data
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