[osm] Wheelmap App creates tags for outer multipolygons on osm

[1000miles]

As mentioned here Rosemary v0.4.4 creates tags for multipolygons on outer lines.

Hallo zusammen:
Wheelmap schreibt jetzt wheelchair-Tags an outer von Multipolygonen:
http://www.openstreetmap.org/way/43450002
Wie geht man mit sowas um?
Grüße

Tsst, wenn's wenigstens einheitlich wäre, die Relation hat wheelchair=yes, der Outer-way wheelchair=limited.

Issues:

• wheelmap creates tags on outer multipolygons
• wheelmap creates inconsistent tags

[1000miles]

Update, 2017-09-19

We looked into the database and found out that there is a way and a node existing with the same name but different osm_id, node_type_id and wheelchair tags.

Database

# osm_id: -43450002 (way)
# name: Köln Geldernstraße/Parkgürtel
# node_type_id: 11
# wheelchair: limited

+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
| osm_id    | tags                                                                                                                                                                                              | node_type_id |
+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
| -43450002 | ---
public_transport: platform
railway: platform
covered: 'yes'
area: 'yes'
surface: paving_stones
train: 'yes'
layer: '2'
name: Köln Geldernstraße/Parkgürtel
lit: 'yes'
wheelchair: limited
    |           11 |
+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
1 row in set (0.01 sec)

# osm_id: 1578607665 (node)
# name: Köln Geldernstraße/Parkgürtel
# node_type_id: 9
# wheelchair: yes

+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
| osm_id     | tags                                                                                                                                                                                                                                                                              | node_type_id |
+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
| 1578607665 | ---
name: Köln Geldernstraße/Parkgürtel
official_name: Köln Geldernstr/Parkgürtel
operator: DB Netz AG
public_transport: station
railway: halt
railway:ref: KKP
railway:station_category: '4'
uic_ref: '8003360'
wheelchair: 'yes'
wheelchair:description: Aufzug vorhanden
      |            9 |
+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+
1 row in set (0.00 sec)

---

Wheelmap

1. Köln Geldernstraße/Parkgürtel (Way) - https://wheelmap.org/nodes/-43450002/ (tagged: wheelchair=limited) > https://www.openstreetmap.org/way/43450002

2. Name: Köln Geldernstraße/Parkgürtel - https://wheelmap.org/nodes/1578607665 (tagged: wheelchair=yes) > https://www.openstreetmap.org/node/1578607665

---

Openstreetmap

[1000miles]

Found another similar case with a duplicate where one is a way and one is a node using the same name Knusperlädle (but no address and no coordinates).

Way: https://wheelmap.org/nodes/-169000335

# osm_id: -169000335

+------------+----------------------------------------------------------------------------------------------------------------------------------+--------------+
| osm_id     | tags                                                                                                                             | node_type_id |
+------------+----------------------------------------------------------------------------------------------------------------------------------+--------------+
| -169000335 | ---
shop: kiosk
building: 'yes'
toilets:wheelchair: 'no'
opening_hours: Mo-Su 09:00-18:00
wheelchair: 'yes'
name: Knusperlädle
  |           64 |
+------------+----------------------------------------------------------------------------------------------------------------------------------+--------------+
1 row in set (0.00 sec)

Node: https://wheelmap.org/nodes/4822471321

# osm_id: 4822471321

+------------+---------------------------------------------------------------------------------+--------------+
| osm_id     | tags                                                                            | node_type_id |
+------------+---------------------------------------------------------------------------------+--------------+
| 4822471321 | ---
name: Knusperlädle
shop: kiosk
toilets:wheelchair: 'no'
wheelchair: 'yes'
  |           64 |
+------------+---------------------------------------------------------------------------------+--------------+
1 row in set (0.00 sec)

Wheelmap

Openstreetmap

[1000miles]

Since this seems to affect ways again, maybe related to:

• Wrong/ old data shown on Wheelmap.org #637
• Wheelmap missing nodes present in OSM #600
• Node has disappeared #521

UPDATE, 2017-09-21:

Current observations with ways:

• some ways that are deleted on osm still show up on wheelmap
• some ways that have been edited/changed (e.g. renamed) on osm do not show up on wheelmap
• ways on osm are a collection of related nodes while ways on wheemap are technically the same as single nodes but the difference is that they:
  • have a minus in the osm_id, e.g. https://wheelmap.org/nodes/-169000335
  • mainly do not have any address and therefore no exact coordinates => leads to duplicates

Question: What value do we have to use/keep ways on wheelmap if we do not treat/interpret them the same way as osm? At the moment they seem to cause more confusion than they help to give proper insights.