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Old 09-25-2005, 10:10 PM   #9 (permalink)
analog
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Quote:
Originally Posted by Redlemon
Block winds? I don't think so. It might even magnify/concentrate some winds, when they come in the right direction. Also, I'm not sure about "structurally sound", and what sort of windloads a parking garage would be rated for. But, I'd be more concerned about being blown out of the parking garage by the winds.
To dispell all the questions in the thread, i'll point out a few things:

1. Even a Category 5 hurricane (winds around 165mph, maybe gusting to 170 or 175) couldn't push a car on a level surface. When you hear about cars being moved around, it's always because there was flooding. Floodwaters, even relatively shallow ones, CAN move a car.

2. Parking garages are solid concrete and steel. Consider each level can hold about 100 cars, and we'll assume everyone drives a compact car. At the very least, that means the support structure can hold up over 100 tons of weight. Besides, it's SOLID CONCRETE AND STEEL, there's no way hurricane-force winds can touch it. Most hurricane damage comes from flying debris, or heavy things falling down on other things. Regardless, if you flew at a support beam in a car, the support beam is going to bruise a little, but come away smiling. There's simply no way the materials of the parking garage would be susceptible to damage from a hurricane.

3. Parking garages are way too open to create any tunnels of concentrated wind, or any issues with changes in pressure that would cause the wind to accelerate within it... they're open on all 4 sides, you wouldn't really experience any real difference in air speed... at worst, maybe gusting up another 10mph... but you're still not going to blow away, regardless.

4. Debris is a good concern, but most airborne debris stays relatively low to the ground. If you know the direction the hurricane is blowing, you could park somewhere with a wall in between you, and you'd likely be fine from any flying dangers. Regardless, i'd completely tape my windows just in case.

It may not be perfect, but it actually appears to be a pretty sound idea. It's certainly better than in a regular house, next to a source of water that could overflow and trap you.
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