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From: tll@druxu.UUCP (LaidigTL)
Newsgroups: net.auto
Subject: Re: Flashing high beams
Message-ID: <1020@druxu.UUCP>
Date: Tue, 6-Mar-84 15:23:52 EST
Article-I.D.: druxu.1020
Posted: Tue Mar  6 15:23:52 1984
Date-Received: Wed, 7-Mar-84 07:47:40 EST
References: <1941@ihnss.UUCP>, <580@u1100a.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 13

The trouble I've found with the "flashing high beams to tell the guy
who's passing you that it's safe to pull back into the right lane" is
that it's an incomplete protocol -- there's an ACK, but no NAK.  In
general, the trucks that pass me on the highway don't wait until I flash
my highs (which I'm perfectly ready to do), but cut me off when there is
some fraction of a carlength between them and me.  Perhaps they aren't
expecting a signal from me, since I'm driving a car and most car drivers
don't give this signal.  Is there any NAK signal other than blowing the
horn (which can be interpreted as an unkind gesture)?

		Tom Laidig
		AT&T Information Systems Laboratories, Denver
		...!ihnp4!druxu!tll