[EMAIL PROTECTED] writes: > We spent a couple of years looking at this and devised a k-means approach > bundling data across the direction of travel to pull out the lanes. The > data could then be grouped by lanes to derive centerlines. Stop signs and > traffic lights were easy, we never got to yields or speed limits.
In principle, you can detect yields if you have enough data and enough GPS receivers. If GPS-a and GPS-b are on the main and side road at the same time, and GPS-b always yields to GPS-a, then you know you have a yield situation. Oh, and if cars on the side road don't always stop, it might be a yield. Of course, it also might be a stoplight, which throws everything off. :-) -- --my blog is at http://blog.russnelson.com | You can do any damn thing Crynwr sells support for free software | PGPok | you want, as long as you 521 Pleasant Valley Rd. | +1 315-323-1241 | don't expect somebody else Potsdam, NY 13676-3213 | Sheepdog | to pick up the pieces. _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
