[aprssig] Traffic info in APRS

William McKeehan mckeehan at mckeehan.homeip.net
Tue Apr 5 14:36:03 EDT 2005

I agree - APRS objects should only be sent for abnormal conditions.

With APRS in my area, the number of vehicles is very limited, but truckers are
pretty regular. Giving them a heads-up to traffic problems in front of them
would be a very helpful. Only knowing about traffic problems when an APRS
vehicle goes into the area would mean that the truckers would generally never
know about a problem. BUT, using data from sensors, the information could be
broadcast on RF in time for people to take an alternate route. I'm thinking
mostly (at least initially) about interstate roads.

On Tue, April 5, 2005 1:04 pm, Frank Keeney - KG6JVE said:
> IMHO, the most important CHP data that would help APRS users are the road
> closures. With the recent winter record rain in S. Calif. Many roads and
> highways were closed due to slides and other damage. Several remain closed.
> IMHO There is no point in posting highway speeds and most accidents.
> Freeways are slow from 7am to 10am and 2pm to 7pm M-F, this is the "normal"
> pattern.
> I'd like to see "abnormal" incidents in RF APRS. Road closures and other
> severe incidents that are out of the normal pattern would be very helpful.
> Frank
>> -----Original Message-----
>> On Behalf Of Chris Kantarjiev
>> Sent: Tuesday, April 05, 2005 8:33 AM
>> To: aprssig at lists.tapr.org
>> Subject: [aprssig] Traffic info in APRS
>> I can see that incident data from CHP and other areas would
>> be interesting.
>> I'm not sure that APRS really wants to get all the speed data - there
>> are a couple thousand loop sensors in the SF bay area, and they are
>> sampled and reported every 30 seconds. That's a lot of QRM.
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William McKeehan
Internet: mckeehan at mckeehan.homeip.net

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