[Patch] Add man_made=communications_tower

[gaben]

It's de facto according to ​OSM wiki and ​recently got its own rendering icon on osm-carto.

Also, a validator heuristic can be used if something tagged with:

• man_made=tower
• material=concrete
• and higher than 100m

it possibly would be a communications_tower instead of tower.

[Don-vip]

see #8076

[skyper]

Presets/MastAndTower supports the tags

[skyper]

See #17818 for the preset part.

[skyper]

Replying to anonymous:

Also, a validator heuristic can be used if something tagged with:

• man_made=tower
• material=concrete
• and higher than 100m

it possibly would be a communications_tower instead of tower.

I find many false positive with this search request even with tower:type=*communication*. Most of them a correctly tagged man_made=tower as wikipedia shows.

[out:xml][timeout:300];
(
  nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["tower:type"~"communication"];
);
(._;>;);
out meta;

and filter (type:node ways:1-) OR (type:way parent (type:relation)) (filter is broken, so the second part does not work and ways with membership are not filtered.
Edit: (type:node ways:1-) OR (type:way child (type:relation))

The opposite is definitely more interesting:

[out:xml][timeout:300];
(
  nwr["height"~"^[1-9][0-9]$"]["man_made"="communications_tower"];
);
(._;>;);
out meta;

finds communications_tower as small as ten meters and all eight tagged wikipedia pages clearly show that these eight are man_made=tower.

[skyper]

Replying to skyper:

…
and filter (type:node ways:1-) OR (type:way parent (type:relation)) (filter is broken, so the second part does not work and ways with membership are not filtered).

Sorry, wrong search. Should be (type:node ways:1-) OR (type:way child (type:relation)).

[gaben]

You missing the material=concrete part. Just checked, it affects 24 objects globally. I consider this addition a nice to have, but not important.

BTW it was reported by me originally :)

[skyper]

Replying to gaben:

You missed the material=concrete part. Just checked, it affects 24 objects globally. I consider the heuristic addition a nice to have, but not important.

Yes, I missed tower:type=communication and material=concrete. material=concrete will miss some objects without material tagged.
Strange, I only find 16 objects (Rel: 1 / Ways: 11 / Nodes: 4). Not sure if this check is needed.

Still, I find 202 objects (Ways: 110 / Nodes: 92) with height between 11 and 99 tagged as man_made=communications_tower. So, in my eyes, this check would make more sense.

BTW it was reported by me originally :)

Sorry, cannot adjust the reporter.

[gaben]

Replying to skyper:

Strange, I only find 16 objects (Rel: 1 / Ways: 11 / Nodes: 4).

I used your modified query:
nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["material"="concrete"];

For easiness ​https://overpass-turbo.eu/s/T03

Still, I find 202 objects (Ways: 110 / Nodes: 92) with height between 11 and 99 tagged as man_made=communications_tower. So, in my eyes, this check would make more sense.

Yeah, this is probably a better approach.

Sorry, cannot adjust the reporter.

No problem, wrote it here just for the record.

[skyper]

Replying to gaben:

Replying to skyper:

Strange, I only find 16 objects (Rel: 1 / Ways: 11 / Nodes: 4).

I used your modified query:
nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["material"="concrete"];

Ok, you'll find some tower:type=cooling with this query. Try:
nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["material"="concrete"]["tower:type"="communication"];

[gaben]

Replying to skyper:

Ok, you'll find some tower:type=cooling with this query. Try:
nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["material"="concrete"]["tower:type"="communication"];

I haven't found a single one, can you please give at least one OSM id?

[skyper]

tower with height 100 or higher and material=concrete

[skyper]

This is the result of nwr["height"~"^[1-9][0-9][0-9]"]["man_made"="tower"]["material"="concrete"];:
josm_16898_tower_example.osm​​

[skyper]

How about adding validator tests for:

• man_made=tower without tower:type: Suggesting to add tower:type
• man_made=tower, tower:type=communication, material=concrete and height over 99 meters: Suggesting to use man_made=communications_tower
• man_made=communications_tower and height below 100 meters: Suggesting to use man_made=tower and tower:type=communication

Only problem, I see, is that you might get a second warning after adding tower:type=communication to a man_made=tower, material=concrete and height over 99 meters.

[skyper]

validator part

[skyper]

I made a patch for the validator part, see josm_16898.patch​. The preset part is covered in #17818.

[skyper]

include decimal numbers and m as unit

[skyper]

josm_16898_v2.patch​​ includes possible decimal numbers and m as unit for height
Not covered, yet, are feet and inches.

[skyper]

validator patch including values in feet

[skyper]

Find final validator patch: josm_16898_v3.patch​
adds warnings for:

• man_made=tower without tower:type
• man_made=tower, tower:type=communication, material=concrete and height 100 m or above, respectively 328 ft
• man_made=communications_tower and height below 100 m, respectively 328 ft

[Klumbumbus]

Replying to skyper:

• man_made=tower, tower:type=communication, material=concrete and height 100 m or above, respectively 328 ft
• man_made=communications_tower and height below 100 m, respectively 328 ft

There is no strict rule in the wiki that towers >100m must be communication_towers and <100m towers.
"It is often made from concrete and usually a far visible landmark. An indication could be a height greater than 100 meters. "

I would not warn about values around 100m. For the only 25 towers >100m a rule is anyway not really needed. The other way round, communication towers < ≈75m a warning would be useful imo.

[skyper]

version 4 only warning about communications_tower < 75m

[skyper]

Version 4​ includes only the warning about communications_tower below 75m.

[Klumbumbus]

In 16705/josm:

fix #16898 - Warn about man_made=tower without tower:type and man_made=communications_tower with height<75m (patch by skyper, modified)

[Klumbumbus]

Thanks for the patch.

[Klumbumbus]

In 16706/josm:

see #10759, see #17818, see #16898 - Add Presets for man_made=mast and man_made=communications_tower, rework preset for man_made=tower, based on patch by skyper, (all icons from ​https://wiki.openstreetmap.org/, from Geozeisig, all PD and CC0 licensed)