<p>Hi,<br>
There have been a few good points raised while I have been away.<br>
I had not thought of producing a live traffic info service, but I can see it is possible. Just needs some careful up front design.</p>
<p>The other is that the Waze client is actually a very nice little application (shame about the map). There are aspects of it that would be worth looking at for an OSM version like Opensatnav.</p>
<p>I am testing waze by adding the East Coast Main Line at the moment. I am not sure that is helping though!</p>
<p>____________________<br>
Graham Jones<br>
(from my phone)</p>
<p><blockquote type="cite">On Mar 24, 2010 8:32 PM, "Eric Marsden" <<a href="mailto:eric.marsden@free.fr">eric.marsden@free.fr</a>> wrote:<br><br>>>>>> "pr" == peter <<a href="mailto:petervotzi@gmail.com">petervotzi@gmail.com</a>> writes:<br>
<br>
pr> I have proposed a student project called "Incorporation of Traffic<br>
pr> Information and OpenStreetMap data"[1] , which has similar goals like<br>
pr> the integration of waze. But deals more with the server part of the<br>
pr> application and will be (of course) as open as openstreetmap is.<br>
<br>
Hi Peter,<br>
<br>
Your proposal is interesting, but given the technical challenges you<br>
will face, it seems overly optimistic to me. I'm also not convinced<br>
that many people would be sufficiently motivated to manually report<br>
transient information such as "roadworks here", so I think your focus<br>
should be on automated extraction of information from live GPS logs.<br>
<br>
I expect that matching poor quality GPS logs (think smartphones) to<br>
OSM data (without concern for the dynamic nature of this data), and<br>
generating information with sufficient confidence about missing ways,<br>
turn restrictions, missing or incorrect oneway tags would already be a<br>
good challenge. Generating information about traffic conditions would<br>
be another possibility, but with less direct utility to OSM.<br>
<br>
Concerning the matching of GPS logs, I suggest you read the paper<br>
"Hidden Markov Map Matching Through Noise and Sparseness"[1] and perhaps<br>
prior art from the CarTel project[2].<br>
<br>
[1] <a href="http://research.microsoft.com/en-us/um/people/jckrumm/" target="_blank">http://research.microsoft.com/en-us/um/people/jckrumm/</a><br>
[2] <a href="http://cartel.csail.mit.edu/doku.php" target="_blank">http://cartel.csail.mit.edu/doku.php</a><br>
<br>
--<br>
<font color="#888888">Eric Marsden<br>
</font><p><font color="#500050">
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