Hi,
in my opinion (i think dktue is right there) it should be easy for a user to distinguish or extract (overpass query) the upper, mid and lower stations.
That�s not possible at the moment in OSM. Elevation (ele tag) may be useful, but does not indicate whether a station is the lower or upper one.
On the other hand, a tagging with upper_station or lower_station is clear and self-explanatory.
Werner
-----"Colin Smale" <[email protected]> schrieb: -----
An: [email protected]
Von: "Colin Smale" <[email protected]>
Datum: 13.08.2020 15:22
Betreff: Re: [Tagging] Aerialway stations
Von: "Colin Smale" <[email protected]>
Datum: 13.08.2020 15:22
Betreff: Re: [Tagging] Aerialway stations
On 2020-08-13 14:49, dktue wrote:
I think it's easy for a mapper to determine if a station is a bottom_station or a upper_station even if he doesn't know the exact elevation.
I would advise against such generalisations - it depends so much on the circumstances and the mapper in question. OSM prefers objective data.
This one has a difference of only 40m. Optically/subjectively it's pretty much dead level. I have done it many times.
Despite the minimal difference the website does indicate that one side is the "top station" and the other side is the "bottom station", but that's probably not a valid source. Anyway, suppose they were both at exactly the same altitude. What's the intrinsic difference between top station and bottom station? The location of the drive motors perhaps? That would be an objective attribute that we could put into OSM (motor=yes/no?)
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