[aprssig] APRS Comment/Status Text Guidelines
bruninga at usna.edu
Thu Nov 20 15:28:07 CST 2008
> Traffic reports are being transmitted
> via APRS now. I can't give a specific
> locatiion or locations... the Icon name
> is TRAFIC or some such thing...
Since the name is always the same, then it is probably a mobile
initiating that object from his D700 when he is stuck in traffic
to let others nearby see the problem. To do this, he has just
programmed a MYCALL of TRAFIC in one of his PM's and when he
slows to a crawl, he can presse the PM-X key and transmit that
object to mark it on everyone's map.
THen when he speeds up again, he can resume normal operations by
going back to PM1, or whatever...
See how-to: www.aprs.org/D7xx/d700-objects.txt
> --- On Thu, 11/20/08, Jack Spitznagel <frawg at frawg.org> wrote:
> > From: Jack Spitznagel <frawg at frawg.org>
> > Subject: Re: [aprssig] APRS Comment/Status Text Guidelines
> > To: bruninga at usna.edu, "TAPR APRS Mailing List"
<aprssig at tapr.org>
> > Date: Thursday, November 20, 2008, 10:34 AM
> > Hi Bob, All,
> > Did you ever look at using the the automated reporting info
> > that is
> > provided by many states with traffic monitoring systems?
> > Maryland may be
> > an exception because of the urbanization of the central
> > part of the
> > state but look at:
> > http://www.chart.state.md.us/travinfo/speedData.asp
> > and the associated map system at:
> > http://www.chart.state.md.us/MapNet/default.aspx
> > Click on the Baltimore - Washington area to see their map
> > display which
> > also reports "traffic events" .
> > The position of speed monitoring equipment is well known
> > and it is
> > updated every 5 minutes. You could cherry pick the
> > monitoring points you
> > want to report over the system as described below. I have
> > been
> > considering a way to create my own "POI's"
> > that map that data using the
> > SV2AGW tracker...
> > Just a thought!
> > Jack - kd4iz
> > Robert Bruninga wrote:
> > > We experimented back in the 90's on radar guns and
> > acoustic
> > > sensors but found the simple tracking of other APRS
> > stations to
> > > be the easiest method for automatically generating
> > these signs.
> > > See www.aprs.org/traffic.html
> > >
> > > In a city, someone prepares a list of traffic choke
> > points.
> > > THen the APRStfc.EXE program monitors the APRS mobiles
> > through
> > > those points and updates the signs objects.
> > >
> > > Then any followon APRS travelrs can see on their
> > radios, the
> > > speed of traffic past these favorite checkpoints.
> > >
> > > Bob, Wb4APR
> > >
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