Hacker News new | ask | show | jobs
by grogenaut 1652 days ago
It's hard to build most buildings to handle a big tornado. https://en.wikipedia.org/wiki/Mercy_Hospital_Joplin is a concrete hospital that took a direct hit, the building is standing but it took very large amounts of damage and that's a beefy expensive building.

Was at my friends house in texas a month ago who had a storm shelter in the garage, it's a 1/4" steel box that is anchored to the ground and has the GPS coordinates etched on the inside since if it does it's job there may not be anything around but GPS to tell you where it is.

2 comments

Wait, I'm not sure how having the GPS coordinates etched helps anything. What do they get used for?
Calling for help.

If your plat and neighbourhood have been scrubbed by the FSM's Own Geographic Erasor Pencil, there's not going to be much by way of landmarks to guide responders. Street sights, structures, and even kerbside markings will be gone.

GPS coordinates tend not to be strongly affected by severe wind events.

This is probably a good idea, though navigation like Google Maps would still work without streets or signs and bring you to the address.
This presumes that the occupants of the shelter know the address, that rescuers have cellular access (towers and other infrastructure may be down), or that the person(s) calling for help are the residents or usual occupants of the structure.

Survivors or those requesting help might not be adults or residents. They might be children, visitors, or strangers seeking shelter (particularly in the case of a business or commercial address). They might be volunteers searching for survivors. Contact might be over radio if phone service is down. GPS operates directly via satellite, so is independent of and terrestrial infrastructure.

The operating assumption of a disaster is that previous assumptions of normality are violated. Responses which remove assumptions of available serivces, or restore a bare minimal functional level of service, or which protect against likely disruptions, tend to be those that are most useful.

GPS is based on

Navigation using an address also works without cellular otherwise Garmin and TomTom devices wouldn’t exist.

I think an address is much easier to understand for a child.

Using an uncommon for most people method of location identifier brings problems of its own. Sure Lat/Long is familiar to us, but I’d guess the average person is unfamiliar.

Like I said, I like the idea but it doesn’t come without its own problems and addresses aren’t as useless in this scenario as implied.

Fair points. I'd still register GPS as more generally useful and usable.
your assuming they dont have both. people dont memorize their gps coords and theyre not easily findable with a phone. redundancy, defense in depth.
I would guess if you call for help you can tell potential rescuers those coordinates.
If the box flies away, you know where to bring it back to. And if it stays put, you can use it to calibrate gps satellites. Lol.
If you read the whole article, the building was demolished afterwards due to be structurally unsound.
Adverse-event construction codes are generally intended to provide survivability for occupants, not continued use of the structure itself.

You'll find that this is the case for, e.g., earthquake construction codes in seismicly-active regions.

Structures can be rebuilt. Humans are a more challenging rehabilitation challenge.

Though the Joplin facility was demolished, and five patients died, those were due to loss of power, and not from tornadic winds or debris themselves.

The building performed as intended, even under a direct strike.