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A comment on California Approves Waymo Expansion to Los Angeles and SF Peninsula [pdf]. Parent comment

Re:California Approves Waymo Expansion to Los Angeles and SF... by NewJazz on Friday March 01, 2024 @06:51PM (#39568275)
Yeah, they are actually. They do research and surveys into traffic speeds. Just because it is difficult to enforce doesn't make it any more justified to go 35 in a 25. That is a big difference, by the way. Almost twice as fast. The fastest humans can run at 25 mph (albeit at short distances). Zero humans can run at speeds of 35 mph. So not just a mathematical difference but a physiological difference as well. Suddenly only the fastest dog breeds can outrun your car... Sorry Lil corgi (they top out at 25 mph typically). Or I dunno, old people, kids, disabled people...

Slower is safer!

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Re:California Approves Waymo Expansion to Los Angeles and SF... by JumpCrisscross on Friday March 01, 2024 @07:05PM (#39568405)
> do research and surveys into traffic speeds

I know, I’m asking if they adjust for how humans actually drive. There are places in America (funny enough, Phoenix and LA) where going 25 in a 25 will subject you to aggressive driving from others.

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Re:California Approves Waymo Expansion to Los Angeles and SF... by dragonwriter on Friday March 01, 2024 @07:10PM (#39568452)
> 35 in a 25. That is a big difference, by the way. Almost twice as fast.

1.4 times as fast is not "almost" twice as fast. 50 is twice as fast as 25; 49 is 1.4 times as fast as 35 which is 1.4 times as fast as 25.

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Re:California Approves Waymo Expansion to Los Angeles and SF... by TulliusCicero on Friday March 01, 2024 @07:40PM (#39568681)
You're correct, but it is true that 35 mph would be roughly double the kinetic energy, which probably matters for accidents.
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Re:California Approves Waymo Expansion to Los Angeles and SF... by rufus_foreman on Friday March 01, 2024 @07:10PM (#39568444)
>> Yeah, they are actually

Wait, you are asserting that speed limits are set expecting that everyone will obey them?

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