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gravitystorm / openstreetmap-carto

A general-purpose OpenStreetMap mapnik style, in CartoCSS
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Rendering of emergency=landing_site #4938

Closed hungerburg closed 4 months ago

hungerburg commented 4 months ago

Expected behavior

Something rendered

Actual behavior

Nothing rendered

Screenshots with links illustrating the problem

None.

Deliberations

There is quite some use of the tag. Locations quite prominent on the ground, e.g. the letter H marked by rocks/stones e.g., they have to be observable from the air. With a bit of local knowledge can be told apart from helipads. Perhaps render same as helipads, perhaps oblique in order to tell them apart?

imagico commented 4 months ago

About 4k uses, half of which are from an import in Poland.

I don't have the impression there is consensus on a delineation between aeroway=helipad and emergency=landing_site. Documentation seems deliberately vague. If there is consensus that for some verifiable helicopter landing sites aeroway=helipad is not a suitable tagging the criteria for this should be documented. If and when that happens we can think about if to show that.

mboeringa commented 4 months ago

Maybe a nice feature to add to the new OpenAirportMap announced on the OpenStreetMap Community Forum instead?

hungerburg commented 4 months ago

Maybe a nice feature to add to the new OpenAirportMap …

Just looked there in the area of my local knowledge - this map does not show all the helipads that are registered with the regulators, especially it misses all the places where OSM contributors placed a helipad, where there is just an emergency landing site instead ;)

What prompted me to file this issue was when gardening OSM data: A mapillary or what its called task urged users to turn helipad nodes into helipad areas - and I noticed that an helipad area was created from a node, where there is no helipad. So I placed a landing site node over the "H" on the aerial, which prompted a note "Cannot be both, which one to keep" - and emergency won by third party intervention.

If you ask me: For OSM, it is the same ;) And both should render the same ;)

imagico commented 4 months ago

If you ask me: For OSM, it is the same ;) And both should render the same ;)

As a principle we try not to support the creation of new synonyms for established tags.

I am going to close this for the moment - if and when the tag becomes clearly differentiated from aeroway=helipad in use we can revisit.