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Comment by itstomkent | Hacker News Reader

Dude if you are going 85-90 miles an hour and you aren't leaving AT LEAST 2 cars in between you, please stay off the road. You should be keeping 3 seconds of distance between you and the car in front of you. At 90 miles per hour that's a hell of a lot more than 2 car lengths.

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It's possible they didn't mean at the same time. Minimum 1 in all situations, including going 5mph in traffic, where 2 might be a bit conservative.

Yeah: driving with a 2-car gap in stop-and-go traffic is NOT normal.

op is posting about the people who cut him off. If I use adaptive cruise control at 2 or 3 (stopping distance) car lengths, then I'm just cut off every time, even though there is nowhere to go.

The end to this unsafe and traffic causing behavior is something I look forward to in more self driving cars. (Fewer drivers racing dangerously for "pride" points to end up at the same traffic light in 500')

> op is posting about the people who cut him off. If I use adaptive cruise control at 2 or 3 (stopping distance) car lengths, then I'm just cut off every time, even though there is nowhere to go.

Then your entire state, or at least, the residents of it that drive on the freeway need be in prison. Or, at least, to have their licenses revoked.

Just to clarify, when it says "1 car length", the car adjusts the amount of space depending on speed. So its not literally just one car length.

Agreed. "Parity" doesn't mean in all cases, it means in the majority of cases and this seems like a edge case (where 2 car lengths isn't good enough).

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