Interstate 10 and 17 out of phoenix (to Cally and Nevada) are monitored by two small planes. IIRC correctly, they measure your speed based on how much time elapses from when hit one mile marker to another (which was probably already mentioned, but I dont' have the time to read through the entire thread).
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370z OG
Quote:
Originally Posted by rooftop
<insert snarky, slightly condescending frost joke>
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Last edited by frost; 03-15-2012 at 04:44 PM.
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