Thanks, I also see that your github project osm-fieldwork fir various conversions including odk to osm.

Thanks for this presentation of the ODK entities in the ODK Central server, the Android ODK Collect and the HOT FMTM.

Looking at the FMTM project #90, we see for each task, Buildings OSM vector data over the background OpenStreetMap with a link to download the MB Tiles.

A few questions / Comments about this :

• What the MB Tiles contain, and what is their role ?
• About ODK Entities for OpenStreetMap :
  1. Could the objective be to collect / update data about entities for OSM ?
  2. Do plans for the HOT FMTM are to eventually use new infos on the entities to update the OpenStreetMap database ? If yes, which workflow could be used ?
• Note that no attribution to OpenStreetMap for the background Map as required when using OpenStreetMap. We only see references to MapBox layers and ArcGIS tiles. I hope that HOT will correct this, giving attribution to OpenStreetMap.

Umap est peut-être une solution. Cette carte permet de faire des requêtes vers Overpass.

In my Pulse of OSM Contributors diary, I did follow each year cohorts of new contributors. As we see on the graph below, year after year, the great majority dont come back a second month.

Statistics about proportion of contributors by days of contribution also show a large percentage with 2 days or less. It would be interesting to see if contributors starting with mobile tools or via remote mapping in mapathons have a different Survival curve.

Looking at trends globally does not reflect the reality in various countries. I agree that POI contribution by phones or other mobile tools are valuable. This I suspect is the main contribution of local mappers in Africa. How can we help them to build a good map from there plus take account of massive remote contributions from remote mappers plus quality problems ?

I did attribute a Changeset to a Continent / Sub-Continent if at least 70% of the Bbox is inside a particular region, otherwise classified as Nd.

@pnorman revision to find ‘%maxar%’ in either the source or imagery_used : ((tags->’source’ ILIKE ‘%maxar%’) OR (tags->’imagery_used’ ILIKE ‘%maxar%’))

The Planet OSM Changeset metadata file let’s measure these contribution from the Map builder editor. Below

Changeset statistics show a minor impact so far. In 2021, 3,768 objects were edited over 40 days with the unique account “Map builder user”. In 2022, there were 1,506 contributors with the random usernamesstrings, In total, they participated 1,700 days and edited less then 70,000 objects (ie. nodes, ways, relations).

Thanks Hans,

Is this R language that is used to interpret this source ?

In this case, the ice_road=yes is tagged on the relation for this route osm.org/relation/9068170

Thanks for paved / unpaved. Will there be rendering for Ice roads like osm.org/way/651548293#map=16/51.4979/-57.4899 ?

Revisiting Heigit stats, I realise that MissingMaps do not include all tasking manager sessions. We have a different perspective selecting All projects with an increase in 2021-2022 over 2020. Analysis of CSV files should show profile by organisations using the tasking manager.

thanks Simon and Norman for these insights.

Heigit provides Tasking Manager Session statistics for missingmaps at https://humstats.heigit.org/statistics.html?org=missing_maps

Statistic files can be downloaded and the graph titled Total Mapped Sessions by Usergroup presents a profile of Task manager sessions by user’s experience. Looking at this graph, we observe a drop of sessions from 2019. More contribution in 2021 is followed by a sharp drop in 2022. And this drop is not only from the less experienced.

Session statistices is not the best indicator but confirms the drop of contribution in the last few years. It would be interesting to see such profile by No. of contributors and Objects edited.