How Parking Garages Track Open Spaces, and Why They Often Get It Wrong
Your flight takes off in 45 minutes and you're just pulling into the airport parking garage. Yes, you should have left earlier, but there's nothing you can do about that now. Your only hope is to find an open parking space quickly and start hauling for the gate.
You're in luck. The airport has one of those new-fangled "space available" systems that tell you exactly how many open spaces are left on each level of the garage. There are lots of red "full" signs, but it says there are seven spots still left on the roof. If you stretch the 5 mph (8 kph) speed limit, you might just make it.
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