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Was watching OPLive last week. Every week they have a segment called "Triple Play" where they have law enforcement send them videos of crazy chases and other in

Was watching OPLive last week. Every week they have a segment called "Triple Play" where they have law enforcement send them videos of crazy chases and other interesting experiences. This last week they had a guy who had completely passed out in his car and was fast asleep at the wheel. A state trooper pulled up alongside it and could see the guy slumped over his wheel. Apparently the car was essentially weaving back and forth between the lane lines because the car had LKAS enabled, effectively keeping the car from driving off the road. The state trooper followed the car for several miles trying to decide what he should do. He tried several times by running his lights and sirens, honking, etc to no avail. He finally found a safe spot and successfully pitted the car to a stop. During the pit, the man suddenly woke up - for obvious reasons. They later found out he had been working 22 hours straight and then was driving to his GF's house several hours away for the weekend and was just exhausted and fell asleep at the wheel.

MarkusWandel 9mo ago
I've never actually tested what happens if you ignore the "steering input required" nags from LKAS. Does it truly keep driving at cruise control speed? I assumed it would eventually slow to a stop. As for the safety feature. I inherited (literally) a second car that's 10 years older than the primary one. You get used to LKAS. I was driving a long distance in the older one while somewhat overtired and had several rumble strip excursions that would not have happened in the LKAS-equipped car. And for the asleep guy in the parent post, it may have made the difference between still being alive and dead in head-on collision or rollover.
- jetbalsa 9mo ago
  My 2021 Toyota corolla will fault out and stop steering for you.
- MBCook 9mo ago
  A few cars will go as far as to apply the brakes and pull over. I think a lot just end up disengaging the steering and cruise control while beeping loudly at you a lot. If the weight of your foot was somehow enough to push the pedal though, you could certainly keep going.
- cmxch 9mo ago
  It will disengage after the alarms on Hondas.
t0mas88 9mo ago
If that's true: What a total idiot in the police car. With a car on lane keeping / cruise control you could slow down in front of it all the way to a stop and it will gladly stop behind you.
- barbazoo 9mo ago
  That might work! > What a total idiot in the police car. It's important to make sure we have all the context before making a judgement like this. My rule of thumb is that if I think something is obviously stupid, I'm probably missing something.
  - Hikikomori 9mo ago
    Can safely assume that American cops are stupid, especially if they do this.
- BeetleB 9mo ago
  > With a car on lane keeping / cruise control you could slow down in front of it all the way to a stop and it will gladly stop behind you. Blue Cruise, and I assume Tesla's FSD as well, will simply change the lane and go around you. If the guy had a simple LKAS and adaptive cruise control on, then yes, you're right.
  - MBCook 9mo ago
    Older systems including the older versions of Blue Cruise may not go around you, but you also don’t know if they even have radar cruise control enabled. If it’s a simple enough system maybe it would just keep going the same speed no matter what until it hit you.
  - sizzle 9mo ago
    GM supercruise will go around you too I have it
- MarkusWandel 9mo ago
  There was a news story here in town a few years back where a private citizen - not cop - brought a ghost car (driver passed out) to a stop by driving up in front of it, making bumper contact and then braking both to a stop. Not recommended! But can be done even without adaptive cruise control.
jmb99 9mo ago
> He finally found a safe spot and successfully pitted the car to a stop. No such thing as a safe spot to PIT someone, ever, let alone while they're asleep at the wheel. This is a great example of why people hate all cops, anyone with two brain cells to rub together would get in front of the car and gradually slow to a stop.
- rich_sasha 9mo ago
  It's a bit grim, but equally what else are you supposed to do? This car will definitely crash into something pretty soon.
  - xethos 9mo ago
    I agree with the recommendation that you yourself replied to: move in front of the vehicle, and gradually slow to a stop, with lights and sirens optional but recommended I am thrown by the question of "What else should have been done" though, after grandparent made an explicit recommendation
- beAbU 9mo ago
  Oof, imagine an airbag going off while slumped over the wheel!
MBCook 9mo ago
Some lane keeping systems purposefully ping-pong between the lines to prevent you from relying on it by making it somewhat annoying. If you’re using it the way you’re supposed to and giving real steering input then it helps you stay within the lines. So it’s less effort for you and it helps mitigate large wind gusts and such. But basically lane keeping is absolutely not meant to steer for you.
shermantanktop 9mo ago
TIL about Precision Immobilization Technique (PIT). Sounds pretty euphemistic for intentionally crashing into someone at highway speeds. Maybe the average cop has better driving skills than I'm giving them credit for, but...I doubt it...
- idibiks 9mo ago
  No, it's literally that. It's super dangerous and the practice of performing it in any but very unusual situations is, to put it mildly, hard to justify on any actual public safety grounds. To the extent the maneuver is a "safe" version of making a car crash, it's (relatively) safe for the cop causing the crash. A certain segment of the public, plus cops themselves (having significant overlap with that segment), love it though, because they enjoy seeing non-compliance met with life-endangering levels of force and can't understand why any of us wouldn't enjoy it unless we want more crime or something. So a bunch of suspects who weren't, car chase aside, any imminent danger to anyone, and their possibly-unwilling passengers, end up dead or life-alteringly injured... and so do plenty of people who had nothing to do with any of it. Often over what was originally just e.g. property crime.
  - eudamoniac 9mo ago
    I would rather a cop risk a runner's life every time than let him continue to flee at speed recklessly for miles on end, usually culminating in crashing into an innocent person or their property. That's not even a question for me. Or would you rather just let criminals run away if they manage to enter a vehicle?
    - idibiks 9mo ago
      It takes two to tango, and the cop can stop the life-threatening chase at any time, without causing a wreck. Causing the speeding car to go out of control is also not a great thing for public safety, and does kill and cripple people who are in no way involved in these chases. We have jurisdictions with no-chase rules and it doesn’t seem to cause some hypothesized explosion in crime. It is in-fact ok to not do them, as satisfying as they might feel.
NedF 9mo ago
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MarkusWandel 9mo ago

I've never actually tested what happens if you ignore the "steering input required" nags from LKAS. Does it truly keep driving at cruise control speed? I assumed it would eventually slow to a stop. As for the safety feature. I inherited (literally) a second car that's 10 years older than the primary one. You get used to LKAS. I was driving a long distance in the older one while somewhat overtired and had several rumble strip excursions that would not have happened in the LKAS-equipped car. And for the asleep guy in the parent post, it may have made the difference between still being alive and dead in head-on collision or rollover.

jetbalsa 9mo ago
My 2021 Toyota corolla will fault out and stop steering for you.
MBCook 9mo ago
A few cars will go as far as to apply the brakes and pull over. I think a lot just end up disengaging the steering and cruise control while beeping loudly at you a lot. If the weight of your foot was somehow enough to push the pedal though, you could certainly keep going.
cmxch 9mo ago
It will disengage after the alarms on Hondas.

t0mas88 9mo ago

If that's true: What a total idiot in the police car. With a car on lane keeping / cruise control you could slow down in front of it all the way to a stop and it will gladly stop behind you.

barbazoo 9mo ago
That might work! > What a total idiot in the police car. It's important to make sure we have all the context before making a judgement like this. My rule of thumb is that if I think something is obviously stupid, I'm probably missing something.
- Hikikomori 9mo ago
  Can safely assume that American cops are stupid, especially if they do this.
BeetleB 9mo ago
> With a car on lane keeping / cruise control you could slow down in front of it all the way to a stop and it will gladly stop behind you. Blue Cruise, and I assume Tesla's FSD as well, will simply change the lane and go around you. If the guy had a simple LKAS and adaptive cruise control on, then yes, you're right.
- MBCook 9mo ago
  Older systems including the older versions of Blue Cruise may not go around you, but you also don’t know if they even have radar cruise control enabled. If it’s a simple enough system maybe it would just keep going the same speed no matter what until it hit you.
- sizzle 9mo ago
  GM supercruise will go around you too I have it
MarkusWandel 9mo ago
There was a news story here in town a few years back where a private citizen - not cop - brought a ghost car (driver passed out) to a stop by driving up in front of it, making bumper contact and then braking both to a stop. Not recommended! But can be done even without adaptive cruise control.

jmb99 9mo ago

> He finally found a safe spot and successfully pitted the car to a stop. No such thing as a safe spot to PIT someone, ever, let alone while they're asleep at the wheel. This is a great example of why people hate all cops, anyone with two brain cells to rub together would get in front of the car and gradually slow to a stop.

rich_sasha 9mo ago
It's a bit grim, but equally what else are you supposed to do? This car will definitely crash into something pretty soon.
- xethos 9mo ago
  I agree with the recommendation that you yourself replied to: move in front of the vehicle, and gradually slow to a stop, with lights and sirens optional but recommended I am thrown by the question of "What else should have been done" though, after grandparent made an explicit recommendation
beAbU 9mo ago
Oof, imagine an airbag going off while slumped over the wheel!

MBCook 9mo ago

Some lane keeping systems purposefully ping-pong between the lines to prevent you from relying on it by making it somewhat annoying. If you’re using it the way you’re supposed to and giving real steering input then it helps you stay within the lines. So it’s less effort for you and it helps mitigate large wind gusts and such. But basically lane keeping is absolutely not meant to steer for you.

shermantanktop 9mo ago

TIL about Precision Immobilization Technique (PIT). Sounds pretty euphemistic for intentionally crashing into someone at highway speeds. Maybe the average cop has better driving skills than I'm giving them credit for, but...I doubt it...

idibiks 9mo ago
No, it's literally that. It's super dangerous and the practice of performing it in any but very unusual situations is, to put it mildly, hard to justify on any actual public safety grounds. To the extent the maneuver is a "safe" version of making a car crash, it's (relatively) safe for the cop causing the crash. A certain segment of the public, plus cops themselves (having significant overlap with that segment), love it though, because they enjoy seeing non-compliance met with life-endangering levels of force and can't understand why any of us wouldn't enjoy it unless we want more crime or something. So a bunch of suspects who weren't, car chase aside, any imminent danger to anyone, and their possibly-unwilling passengers, end up dead or life-alteringly injured... and so do plenty of people who had nothing to do with any of it. Often over what was originally just e.g. property crime.
- eudamoniac 9mo ago
  I would rather a cop risk a runner's life every time than let him continue to flee at speed recklessly for miles on end, usually culminating in crashing into an innocent person or their property. That's not even a question for me. Or would you rather just let criminals run away if they manage to enter a vehicle?
  - idibiks 9mo ago
    It takes two to tango, and the cop can stop the life-threatening chase at any time, without causing a wreck. Causing the speeding car to go out of control is also not a great thing for public safety, and does kill and cripple people who are in no way involved in these chases. We have jurisdictions with no-chase rules and it doesn’t seem to cause some hypothesized explosion in crime. It is in-fact ok to not do them, as satisfying as they might feel.

NedF 9mo ago

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