Hi everyone. We are pleased to inform the community about the progress of the missing roads tasks that Kaart has initiated in the Philippines [0]. Thanks to mappers (here and abroad) who've contributed their time and effort, we have completed the missing roads tasks [1] for the following areas: - Metro Manila (with validation) - Batangas - Bulacan - Pampang - Pangasinan - Quezon - Rizal
While we still have available tasks for the following provinces: - Cavite - Laguna We plan to attend to other provinces as well, as soon as we complete our priorities. If you wish to have your home province task made available sooner, please ping me. Our next [2] priority is addressing the road alignment issues we've identified for Metro Manila. Based on Kaart GIS analysis, some of our road segments has positional errors (~3-17m) when compared to existing track logs (OpenStreetMap and Strava). We propose to adopt following alignment strategy : 1. Where available, use Bing as baseline, but verify its accuracy by comparing with SatNav (OSM track logs, Strava heatmaps) data. Same applies for any other available aerial imagery (e.g. Mapbox. Digital Globe Standard, Digital Globe Premium, ESRI World Clarity, ESRI World Imagery). 2. Publish offsets to the Imagery Offsets Database (IODb) <http://offsets.textual.ru/map>. Deprecate IODb entries, when necessary. 3. For grid networks, attempt to offset data to match imagery. If not successful or practical, retrace the area. 4. Realign all other roads, correct topology errors, and mark task as complete. 5. Pass 2. Validation. Realignment and imagery offset is not a task for beginners, so we've temporarily set the task to private. Collaborators using JOSM are welcome to help out, when the task is made ready for dissemination. Additional details are posted in our task ticket [2]. If you want to access the project task, let me know what your OSM username is, so I can add you, too. We are keen to hear the community's feedback, or suggestions. /Erwin [0]: https://github.com/mapamore/kaart-ph/issues [1]: https://tasks.hotosm.org/contribute?difficulty=ALL&organisation=Kaart&text=missing [2]: https://github.com/mapamore/kaart-ph/issues?utf8=%E2%9C%93&q=label%3Apriority+ [3]: https://github.com/mapamore/kaart-ph/issues/12 -- /Erwin Olario e: er...@ngnuity.xyz | v/m: https://t.me/GOwin | s: https://mstdn.io/@GOwin
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