Andrew W. Gaunt wrote:
BTW - If a ticket were to be issued based on EZ pass data
how would it proved absolutely that the person who owns the EZ pass
was the person driving whatever vehicle was going over the speed
limit.Perhaps there are more than one dirver, perhaps the car or pass
is being loaned out to a friend.
The thing that's always concerned me is, what happens if the clocks on
the EZ pass scanners are out of sync? If the second scanner's clock is a
few minutes behind the first one, then the system does the math and
computes a spped for your car that's faster than what you're actually
doing.
On Wed, 26 Oct 2005, Paul Lussier wrote:
> Distance: 72 miles
> Time: 45 minutes
> Speed: 96 MPH
Time: 45 minutes
Speed: 96 MPH
Actual Time: 50 minutes (5 minute clock drift)
Speed: 86 MPH (10 MPH difference)
Time: 55 minutes (10 minute clock drift)
Speed: 78 MPH (18 MPH difference)
Put it the other way; assuming the speed limit on the Mass Pike is 65
MPH, let's look at 72 miles at 65 MPH.
Distance: 72 miles
Actual Time: 66 minutes
Speed: 65 MPH
5-minute clock drift: 61 minutes
Computed speed: 70 MPH
10-minute clock drift: 56 minutes
Computed speed: 77 MPH
Now you're legal, but the scanners claim you're speeding, and you're
paying a ticket and increased insurance costs for something you didn't do.
--
John Abreau / Executive Director, Boston Linux & Unix
ICQ 28611923 / AIM abreauj / JABBER [EMAIL PROTECTED] / YAHOO abreauj
Email [EMAIL PROTECTED] / WWW http://www.abreau.net / PGP-Key-ID 0xD5C7B5D9
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