2008/11/27 Robert Vollmert <[EMAIL PROTECTED]>: > How about: "Would an average roller blader like to use this?"
Take a cyclist with a racing bike. If they are training at high speed they might find a road with irregularities and a few potholes unusable. The next day the same rider and bike might be out on a ride with the family and find the same road perfectly usable. On the family ride the fact the road is low traffic and scenic is much more important than on the training ride. Clearly the cyclists objectives are playing a large part in determining if a road is usable or not. Is a road with potholes really smoothness=good? It must be because I saw a racing bicycle use it. I also use a city bike to map brideways and would happily use the track pictured as smoothness=horrible if my objective is mapping. http://wiki.openstreetmap.org/wiki/Image:Jena_Trackexample_profile.jpg Since I used it on a city bike it must be surface=intermediate. If you try to use the tag objectively it just does not work. If you need to think about the average roller blader or average racing cyclist then it is not objective. Trying to pretend it is subjective when it isn't is just going to cause problems when people try and use it objectively. Similar surfaces will end up with very different smoothness values based on who they have seen use the road. Collecting data to objectively classify smoothness is going to be a lot of work. Physically measuring parts of the surface and the like. I don't see the problem with admitting this and coming up with a decent subjective scheme. I think you probably would get a lot of the benefit of an objective scheme with a fraction of the effort. -- DavidD _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
