[Routing] Time dependent/live traffic map data

[Josh Doe]

I'm not sure if this kind of data should directly be in the OSM
database, but probably in a secondary database.

There is an unfortunately named thread on OSM-dev ([Fwd: Mail delivery
failed: returning message to sender]) [1] about a company interested
in providing just this sort of data:

"We'll be logging this data and producing average [speed] data for
each road way a vehicle travels down, and keeping separate profiles
for different types of vehicles, dates and times."

-Josh

[1]: http://www.mail-archive.com/dev@openstreetmap.org/msg14406.html

On Tue, Apr 5, 2011 at 2:01 PM, Jay Mahadeokar <jai.mahadeokar at gmail.com> wrote:
> Hi all,
>
> I am Jay Mahadeokar, doing Masters in CSE from IIT Kanpur, India. I am
> working on time-dependent shortest path algorithms as part of my thesis work
> and I also intend to implement the same for pgRouting library[1].
>
> Time Dependent Shortest path routing is an extension to usual shortest path
> routing algorithm. Unlike static scenario, where the edge weights do not
> change here, we assume that the weights change according to time. So, while
> traversing any edge, the algorithm must consider the cost of edge at that
> instant of time. Thus the algorithm will give the path which has least
> arrival time from source to destination.
>
> I was wondering if OSM has such time-dependent data for real road networks.
> It would be really useful if such data is made available. I believe Navteq
> provides such data with high resolution (correct upto intervals of 5 mins).
>
> Also, I would like to know if there is any standard for storing such data?
> Any information / link would be very helpful.(I have started exploring this
> area very recently and hence, so please excuse me if some of queries are
> naive)
>
> Thanks.
>
> [1] http://www.pgrouting.org/
>
> --
> Regards,
> -Jay Mahadeokar
>
>
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