Johan Prinsloo wrote:
You don't need mapping data for speed limits. If a group of users share their data at a central server we can deduce the speed limit from past data. The server can learn which suggested alternative routes are the most effective for given traffic conditions. The server will know in real time what the traffic conditions are on many routes. This would be incredibly powerful when these devices become widespread and we form community servers for traffic information. We probably need to define open interfaces for this kind of server. The server algorithms would be very interesting.
before reinventing the wheel or something, there's the openstreetmap project which gathers freely available road (and more) data in a wiki manner...
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