[Routing] Time dependent/live traffic map data
Eric Marsden
eric.marsden at free.fr
Wed Apr 6 07:44:00 BST 2011
>>>>> "jm" == Jay Mahadeokar <jai.mahadeokar at gmail.com> writes:
jm> traversing any edge, the algorithm must consider the cost of edge at that
jm> instant of time. Thus the algorithm will give the path which has least
jm> arrival time from source to destination.
jm>
jm> I was wondering if OSM has such time-dependent data for real road networks.
jm> It would be really useful if such data is made available. I believe Navteq
jm> provides such data with high resolution (correct upto intervals of 5 mins).
Hello Jay,
Lukas Kabrt worked on the data analysis part of this problem during
last year's Google Summer of Code. He developed software that is able
to analyze a bunch of GPX files to extract the per-way and
per-timeslice travel times.
http://wiki.openstreetmap.org/wiki/Routing/Travel_Time_Analysis
What is missing is the data collection part of this problem:
collecting enough tracks from volunteers (while protecting privacy),
storing them in a dedicated database, updating the travel time
statistics regularly, providing an API for clients to access this
information.
--
Eric Marsden
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