Yes, agreed. Though speed limits higher than 75 are not something I will ever support.*

* Unless we're talking about removing a speed limit altogether and regulating unsafe driving using other criteria.

benlivengood 8 hours ago | parent | next [-]

Autonomous vehicles following proper signalling before lane changes can be safe at arbitrary speeds (see Autobahns working at all). Humans, we should limit passing speed to roughly ~5 mph delta between adjacent lanes and leave it at that.

Humans with adequate following distance in the entire lane can probably manage 10 mph delta. I routinely travel dozens of miles very safely at ~80 with the flow of traffic (including the cops), and been stressed out at 55 in the carpool lane through stop and go traffic in the right-hand lanes due to on ramps/offramps.

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jjav 9 hours ago | parent | prev [-]

What happens at 76mph?

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TimTheTinker 9 hours ago | parent [-]

Same thing that happens at 77mph :)

I think 75 is memorable and roughly in the region where the tradeoff between increased kinetic energy and decreased time to arrival per additional unit of velocity becomes untenable.

	▲	The_President 7 hours ago \| parent [-]
		> the tradeoff between increased kinetic energy and decreased time to arrival per additional unit of velocity becomes untenable Sounds like a warning page out of the back of a 94 Geo Metro owner's manual.