Proposal:Addr=main
| addr=main | |
|---|---|
| Proposal status: | Draft (under way) |
| Proposed by: | CapitaineMoustache |
| Draft started: | 2023-03-01 |
Proposal
Introducing a new tag addr=main in order to specify that an object with addr: prefix keys constitutes an address as an geolocated index, suitable for routing.
Rationale
Currently in OSM, addr: keys (addr:housenumber, addr:street, addr:postcode, addr:city...etc...) are both used to map addresses as unique features (relevant for routing) and specify POI's addresses as well (contact information, just as phone or website).
Issues:
- It causes duplicates that can be misleading for data consumers who would want to get every addresses of a town for example.
- Currently, many POI's contain
addr:keys which can be misleading for routing because POI's location may not be relevant for that. Mapping POI's or addresses should be two different things.
Adding a tag which would be a kind of a seal of approval saying: this is an address, meaning an geolocalised index could help to distinguish for what purposes an object with addr: tags may be use.
Advantages:
- Avoid duplicates of addresses data for routing: getting for each
addr:housenumberone position, suitable and relevant for routing. - It does not affect traditonnal ways to map addresses, addresses with
addr=mainshould be simply primary used for routing.
Disadvantages:
Tagging
addr=main should be added to any object with addr: keys which best represents the location linked to the matching address and suitable for routing (typically, the entrance of a building, a whole building, a driveway entrance, or more generally the interface between a public accessible way and some place...).
It may be added in a POI itself if its geometry best matches what the address should represent or an isolated geometry (node, way, relation) as well.
Examples
Rendering
Features/Pages affected
External discussions
See also the proposal Le Schéma de Charlieu (in french). It proposes to use contact: prefix keys to add POI's addresses (as contact data like contact:phone or contact:websitealready do) instead of addr: keys which should be used only to map addresses as unique features. About 37000 objects are mapped in such a way, mostly in France (2023-03-01).
Comments
Please comment on the discussion page.