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From: ron@brl-tgr.ARPA (Ron Natalie )
Newsgroups: net.auto,net.legal
Subject: Re: Radar Surveillance
Message-ID: <585@brl-tgr.ARPA>
Date: Fri, 9-Aug-85 15:22:45 EDT
Article-I.D.: brl-tgr.585
Posted: Fri Aug  9 15:22:45 1985
Date-Received: Mon, 12-Aug-85 04:42:58 EDT
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Organization: Ballistic Research Lab
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Xref: linus net.auto:6546 net.legal:1649

> 
> I don't know what signs there are on "the parkway", but helicopters are
> a perfectly good way to enforce speeding laws.  Many areas of the
> country have special markings on the pavement; officers in aircraft can
> calculate a car's speed by seeing how long it takes to cross two
> markings.  An alternative to this is the old-fashioned way of following
> a suspected speeder in a car, matching speeds.

I can think of one good reason not to use helicopters, the suckers
are expensive to operate for this kind of frivolous activity.