I noticed recent edits [0] made by a contributor pointing to a Tasking Manager project [1] campaign by UP NOAH. Project is set to private, and public contributors cannot participate.
The project instructions are vaguely recommending tags that may lead to improper tagging. Currently their project has the instruction to their contributors: ``` Map all buildings and tag its specific building type: building=yes for generic buildings building=commercial for commercial buildings building=retail for buildings that sell products and services building=house for residential units building=residential for multi-storey residential units building=school for units used for educational institutions building=church for places of worship building=industrial for industrial buildings If you know more information about a certain building, please add important details such as: address (addr:street=Rizal) (addr:province=Cavite) and number of floors (building:levels=3). If the building is an evacuation shelter, add the tag evacuation_center=yes. These tags are needed to be added in the critical infrastructures for an effective disaster operations and infrastructure assessment. Do not delete any existing data because it is possible that they have used latest imagery than what we are using. ``` Below are my notes, and some recommendations: - `building=commercial` is used often by mappers when they actually refer to `building=retail`. Recommendation: Improve instruction by by providing real-life examples - `building=house` is applicable for multi-storey buildings for a **single** household. Revise the instruction. - `building=residential` is a general purpose tag for residential buildings. Do not describe this tag for use with "multi-storey residential units" as they may be correctly applied for single-level units, as well. Also, multi-storey qualification is determined by `building:levels` tag - number of floors, as understood in the Philippines is not the equivalent value for `building:levels`. A five-storey building , as understood in PH, would be tagged as `building:levels=4`, and a `building:levels=1` means a 2-storey building. - clarify that`building=school `are only for institutions offering **basic education**. Schools, colleges, universities are properly tagged by their `amenity=*` tags. Other establishments offering other forms of instruction may use `office=educational_institution` - clarify that places of worship tagged as `amenity=place_of_worship` is not always necessary done in `building=church`. it could be also in a building=chapel. It may not even occupy the whole building. An object tagged as `building=cathedral` + `amenity=bar` are valid tags for a re-purposed building, now serving as a bar -- and I doubt any form of worship happens there. - The proper tags for evacuation shelters are `social_facility=shelter` + `social_facility:for=displaced`. The use of `evacuation_center=yes` is meant to be secondary tags for ad hoc or temporary shelters. - The instruction about "not deleting" data is not necessary, if the the contributors are taught how to switch imageries (including how to adjust offsets). If updated imagery shows the objects to be absent, then deleting them should be alright. - Recommend the use of `addr=*` and `addr:place` where street names are absent, instead of using them like `addr:street= Blk 23 - Suha, Taytay, Rizal`. I hope this helps the project managers, and we could be more consistent with our tagging and training efforts. This only came across me since we're also working in the same area in our data improvement efforts [2]. [0]: https://osmcha.mapbox.com/api/v1/aoi/8eec2d9a-a5a3-4392-884c-ae5d32b764c1/changesets/feed/ [1]: https://tasks.hotosm.org/project/4108 [2]: https://tasks.hotosm.org/contribute?difficulty=ALL&organisation=Kaart -- /Erwin Olario e: er...@ngnuity.xyz | v/m: https://t.me/GOwin | s: https://mstdn.io/@GOwin
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