[email protected] wrote: >> Imagine if we scale this OSM and filter gps traces collected by cars, we >> have an empirical data on the average traffic speed. > > Unfortunately the GPS traces will be 'slow biased' as we all slow/stop to > take pictures of post boxes etc.
Depends; some of us just collect GPS data just in case one particular trip goes someplace poorly traced. That being said, slow-biased speed data is probably better than fast-biased speed data, if only to take into account traffic.
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