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[aprssig] CHART Traffic Data Testing

Joseph M. Durnal joseph.durnal at gmail.com
Mon Feb 15 17:57:14 UTC 2010


Sounds like a good idea.

Chart is was one of the sources I used to put road closures in
Frederick County MD on the bulletin board.  I thought about donig
objects, but in many cases, the chart data wasn't precise enough, that
could be due to the nature of the closings due to snow drifting.
while chart reported Maryland Route 17 closed between I70 & US340, I
talked to a ham who took that route from Middletown to US340 and found
one lane clear the entire way, and no officials or barricades in his
path. While chart reported US340 closed west of the MD 180 petersville
exit, the police were not letting traffic on south of I70.

73 de Joseph Durnal NE3R

On Sat, Feb 13, 2010 at 4:20 PM,  <rfinesmith at aol.com> wrote:
> I've am testing a traffic data server for Maryland that queries the Maryland
> CHART web site and sends traffic and highway status packets over APRS, such
> as lane closures and road work.  I apologize for the extra QRM on APRS in
> that area while I test.  When I get it working correctly it will refresh
> this data hourly, but send new listings and kill objects (for deleted
> events) every 5 minutes.  I will also implement a query capability that will
> send traffic events within some radius of the querying station.
>
> I have been using the "yellow triangle with exclamation mark" symbol for
> road events/incidents  If that is not the appropriate symbol to use for
> these events, please let me know and I can change that easily.
>
> I have found several other states and cities that provide capabilities
> similar to Maryland CHART, and even Great Britian has such a query
> capability for the entire country at one site, so I am open to sharing this
> software once it is beta-test ready.
>
> 73,
> Rob, AA3NJ
>
>
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