Hacker News new | ask | show | jobs
by rebootthesystem 3250 days ago
You missed my point: Speed does not kill.

Going off track at 120 MPH was not fun. Dirt, rocks, slashed two tires. Beyond that it was uneventful. The speed just makes it last longer and probably contributed to the huge holes on the tires.

You can have a crash on the highway at 100 MPH and have it be just an uneventful other than a crunched-up car. It's a function of the delta in speed AND the delta in acceleration, angle, forces, etc. In other words, if the car in front of you is decelerating gently vs. violently, etc. Too many permutations to list.

What you don't want is this:

https://www.youtube.com/watch?v=No7v2ps6ukI

It doesn't even look like they are travelling fast at all.

2 comments

>You missed my point: Speed does not kill.

No, we're agreeing on that.

I'm saying that most of the benefit in a typical racing situation comes from seats and restraints. Look at some of the wrecks from the cup series race last weekend at Indianapolis. They're not walking away because the wreck took a long time. They're walking away because they weren't bouncing around inside.

The human body can survive plenty of G forces.

http://www.ejectionsite.com/stapp.htm

"Stapp'd endured 25 Gs. It was the equivalent of a Mach 1.6 ejection at 40,000 feet, a jolt in excess of that experienced by a driver who crashes into a red brick wall at over 120 miles per hour. Only it had lasted perhaps nine times longer. And it had burst nearly every capillary in Stapp's eyeballs. "

"Stapp had already proven what he'd set out to prove: that a pilot, if adequately protected, could survive a high speed, high altitude ejection"

Of course, restraints let the structure around you disintegrate without you being part of the spectacle.

Yet it is true that airbags have probably saved millions of lives as well as untold people from painful, expensive and life changing injuries.

There is no way I would buy a car without airbags. This is one reason I am not into vintage or collectible cars, they are simply not safe and I do not care to drive them.

Its hard to argue against the logic that people travelling slower would reduce injury and harm. It's sure annoying to crawl along slowly, but it's also pretty hard to hurt yourself doing it.
Well, there's a limit, right? The point of a highway is to move people from point A to point B as quickly and safely as possible. In other words, we need to optimize for both. If we optimize only for safety we'd crawl at 5 mph.