Just take any job that requires a significant highway commute, you'll see more than that.
Whenever you get full speed traffic occasionally interrupted by traffic jams (from whatever cause, other accident, tolls, weather, low angle sunlight, construction, etc.), you'll get a higher incidence of rear-enders. Especially when the tail of the slow/stopped traffic is at a point just past a hill or curve.
I got rear-ended myself some years ago in just such a situation, clear sky & dry road. The traffic ahead had slowed dramatically driving into a section where the bright, low winter sun was in everyone's eyes, we couldn't see that before the gentle bend & rise in the road, I saw the slowing traffic & had to brake hard, the person behind me braked late and hit me even though I'd tried to stretch my braking as much as possible to give her more room. There was another similar accident minutes later just behind us.
This kind of rapid-slowing situation in tight-fast traffic will likely even get out of hand even for automated cars, unless there is car-to-car communication. This is because of the slight delay for each successive slowing car in the accordion-effect accumulates to the point where eventually the required reaction time decreases and required deceleration rate increases past the performance envelope. At that point, a crash is inevitable.
With car-to-car communication and automation, the last car in the pack can start braking almost simultaneously with the first one and avoid this.
>This kind of rapid-slowing situation in tight-fast traffic will likely even get out of hand even for automated cars, unless there is car-to-car communication. This is because of the slight delay for each successive slowing car in the accordion-effect accumulates to the point where eventually the required reaction time decreases and required deceleration rate increases past the performance envelope. At that point, a crash is inevitable.
Is this really true?
It seems like, as long as the following delay between cars is greater than that reaction delay, there should be no such "accordion effect."
rapid slowing is fairly common in 280. I find it safest to be on the left-most lane, where you can use shoulder to get you a safe stop. rapid slowing is one reason i'd probably get level-2 autonomous car.
I didn't say it was -- I opened by agreeing, then also provide my example, as a lead-in to the car-to-car communication point.
And yes, when you have an urban highway commute of any distance, it is not unusual to see that many crashes. maybe not every day, but not far off, and enough that you cannot rely upon commute times, precisely because the crashes are so unpredictable.
You might try actually reading other posts before replying with trivial inaccurate potshots. sheesh
I don't think car-to-car matters. You can't rely on it being accurate or present. The car will simply have to drive in such a way that it can always stop within the stretch of visible clear road.
Whenever you get full speed traffic occasionally interrupted by traffic jams (from whatever cause, other accident, tolls, weather, low angle sunlight, construction, etc.), you'll get a higher incidence of rear-enders. Especially when the tail of the slow/stopped traffic is at a point just past a hill or curve.
I got rear-ended myself some years ago in just such a situation, clear sky & dry road. The traffic ahead had slowed dramatically driving into a section where the bright, low winter sun was in everyone's eyes, we couldn't see that before the gentle bend & rise in the road, I saw the slowing traffic & had to brake hard, the person behind me braked late and hit me even though I'd tried to stretch my braking as much as possible to give her more room. There was another similar accident minutes later just behind us.
This kind of rapid-slowing situation in tight-fast traffic will likely even get out of hand even for automated cars, unless there is car-to-car communication. This is because of the slight delay for each successive slowing car in the accordion-effect accumulates to the point where eventually the required reaction time decreases and required deceleration rate increases past the performance envelope. At that point, a crash is inevitable.
With car-to-car communication and automation, the last car in the pack can start braking almost simultaneously with the first one and avoid this.
So, no, it's not hyperbole, it's ordinary.