[Tagging] Damage Assessment Tags - Would like feedback on a schema

Andreas Goss andig88 at t-online.de
Thu May 21 19:36:10 UTC 2015

As you linked to this on the HOT list a few things noticed...

What about the typhoon:, earthquake: or tsunami: tags? Replaced with 

What about e.g. damage:building? This could still be used even if you 
have building= and damage=

What about the status= and impassable= keys and tags?

> Greetings everyone,
> I am looking to help further develop a set of tags to reflect disaster
> event damage to mapped objects in OSM. OSM has already used damage
> tags in the past several times for example after Typhoon Haiyan:
> http://wiki.openstreetmap.org/wiki/Damaged_buildings_crisis_mapping
> And after the 2011 Sendai earthquake and tsunami
> http://wiki.openstreetmap.org/wiki/2011_Sendai_earthquake_and_tsunami
> And in Haiti
> http://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Tags/Humanitarian_Data_Background#OpenStreetMap:_Tags_in_Current_Usage
> I have read feedback about issues related to those tags and would like
> to generate a set of tags that address that feedback. The main
> feedback I saw was that the damage tags need to be separated from the
> main object tags themselves (building=*, natural=*, highway=*, etc)
> and they need to be easily removed after the damage is resolved or the
> event is over.
> Toward that end this is what myself and some other more experiences
> mappers have come up with. We think it addresses those issues and
> improves damage tagging in general. We would like community feedback
> to help improve them before creating a wiki proposal page. Our over
> arching goal of course is to create the most useful set of tags
> possible. We are also going to reach out to some humanitarian
> organizations to get feedback about their damage assessment data
> models and hopefully use that to make improvements as well.
> I know there are other people interested in this topic as well so if
> anyone has complete alternative suggested schemas that would be great
> too.
> Any and all feedback and discussion is most welcome.
> Tagging Schema
> Criteria:
> 1. Separate feature/object from damage tag itself
> 2. Identify event the damage tag is related to for analysis and easily
> removing them later
> 3. Allow for assessed and revised indication
> 4. Specify type/source of assessment
> 5. Easy to enter, remember, understand for mappers
> 6. Works well with overpass/overpass-turbo queries
> 7. Relatively easy for routing software to work with
> 8. Most similar to existing OSM tagging schemas
> 9. Allow for initial or revised damage assessment based on ground survey
> For any area or node (buildings, amenities, landuse, natural, etc)
> damage=[none | partial | major | destroyed]
> damage:event=event_name[;event_name2;etc]
> damage:assessment=[none | initial | revision]
> damage:organization=organization_adding_damage_tags_name
> source:damage=[satellite | aerial | survey]
> For ways (highways)
> These are the same as above, but we add a damage specific key
> damage:smoothness and use the values from the existing smoothness key
> values (http://wiki.openstreetmap.org/wiki/Key:smoothness). Routing
> software would look for the damage:smoothness=* key and if present use
> that value over the explicit or implicit smoothness=* value. When the
> damage tags are removed, routing would return to pre-event status
> automatically.
> damage=[none | partial | major | destroyed]
> damage:smoothness=[excellent | good | bad | horrible | impassable]
> damage:event=event_name[;event_name2;etc]
> damage:assessment=[none | initial | revision]
> damage:organization=organization_adding_damage_tags_name
> source:damage=[satellite | aerial | survey]
> Cheers,
> Blake
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