2014-05-08 16:32 GMT+02:00 Serge Wroclawski <[email protected]>: > 1. Why map sidewalks > > This is a judgement call. In NYC it's reasonable to assume that a road > has a sidwalk. It would be better to map roads without sidwalks than > roads with them, because a vast majority of roads have sidewalks. > > In DC, where I used to live, many roads did not have sidewalks, or > only had sidewalks on one side of the street. > > Maybe where you are, it's closer to DC, or possibly even less. Or > maybe you are trying to bright some light on the state of sidewalks in > your area. >
+1, generally I agree although there are more reasons, especially if you want to record more than just sidewalk=yes/no, e.g. micromapping obstacles. Where I live (not in the US) there are sometimes obstacles on the sidewalk like bollards or there are very narrow spots (down to 30-40cm / 1ft) where you have a hard time passing with a wheelchair or a babystroller. Mapping these all to the main highway (=road) is problematic (you will get complicated and direction dependent tags like footway:right:width) and will require to split the road quite often in order not to apply the tag to road sections where they don't apply to. Also complex crossings can be mapped easier when explicit pedestrian geometry is drawn, especially in situations where you cannot cross all streets but only some. cheers, Martin
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