[OSM-talk] my cycling speed from gps traces

[Paul Johnson]

simon at mungewell.org 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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