Digital Elevation Models, Old Maps, And Cultural Heritage—Geospatial Assets For The Digital Humanities
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https://doi.org/10.3389/fcomm.2025.1507385 <-- shared paper
--
#GIS #spatial #mapping #spatialanalysis #spatiotemporal #water #hydrography #remotesensing #earthobservation #landscape #humanimpacts #landforms #DEM #elevation #LiDAR #oldmaps #historicmaps #culture #society #infrastructure #community #change #DigitalHumanities #geography #cartography #environment #culturalheritage #Nederlands #LingeRiver #engineering #precisionmapping #understanding #history
#QGIS supports a "Model builder" that will allow you to chain a selection of these algorithms together with data you have.
At the end of the pipeline, you can give weights to each of the component pieces for a final priority that balances safety, utility and equity in sidewalk planning!
Here's a heatmap of locations with missing sidewalk, shaded based on priority to fund. 🧵
Another #UrbanPlanning algorithm I plan to pick back up is like "Percent High Comfort BikeShed" (or WalkShed).
The idea is compute the area from a given a location that you bike to within 15 minutes and then the area that bike to *with high comfort*, like protected bike lanes and so forth. Divide them to get the "Percent High Comfort Bikeshed" for that location.
"Percent High Comfort Bikeshed" may be harder to package for #QGIS because it involves running a custom #valhalla server currently-- building a graph to generate the bike isochrones (travel-time area) using only the high-comfort facilities.
If there's a way to query Valhalla such that only a subset of the network is considered for routing, then I could run it against public servers.
The current iteration of the plugin generates a starter hex grid for you.
The expanded version will support "bring your own hex grid", so you can start with a grid and then continue add more values to it which are then used to build a priority score.
This final step is described more here, in How to Create a Heatmap of Sidewalk Location Priority:
https://mark.stosberg.com/how-to-create-a-heatmap-sidewalk-location-priority/
🧵
Early feedback on the "Sidewalk Location Priority Toolkit" for QGIS is welcome.
Are you interested in something like this? What's helpful to you? Questions?
#QGIS supports a "Model builder" that will allow you to chain a selection of these algorithms together with data you have.
At the end of the pipeline, you can give weights to each of the component pieces for a final priority that balances safety, utility and equity in sidewalk planning!
Here's a heatmap of locations with missing sidewalk, shaded based on priority to fund. 🧵
The current iteration of the plugin generates a starter hex grid for you.
The expanded version will support "bring your own hex grid", so you can start with a grid and then continue add more values to it which are then used to build a priority score.
This final step is described more here, in How to Create a Heatmap of Sidewalk Location Priority:
https://mark.stosberg.com/how-to-create-a-heatmap-sidewalk-location-priority/
🧵
#QGIS supports a "Model builder" that will allow you to chain a selection of these algorithms together with data you have.
At the end of the pipeline, you can give weights to each of the component pieces for a final priority that balances safety, utility and equity in sidewalk planning!
Here's a heatmap of locations with missing sidewalk, shaded based on priority to fund. 🧵
The full set of algorithms to be packaged for #QGIS is described here in "Toolkit for Sidewalk Location Priority"
https://mark.stosberg.com/toolkit-for-sidewalk-location-priority/
They include calculating location priority based on:
- "Walk Potential" -- proximity to interesting destinations
- building a Missing sidewalk Map
- line segment data like street width, speed and average traffic volume
- point data like crash locations or traffic column locations.
- Walk proximity to points, like bus stops 🧵
A thread about what's next for my "Walk Potential" #QGIS plugin.
https://plugins.qgis.org/plugins/walk_potential/#plugin-details
Intro video: https://urbanists.video/w/kNht44gXqiN2w95ZhxQRVW
The plan is to expand the scope of this #UrbanPlanning tool into "Sidewalk Priority Toolkit'. It will package several more algorithms that you can then mix and match with your own local data sets to put together a final project priority heatmap to plan sidewalk funding.
Though, the framework may be useful for other kinds of spatial priority as well! 🧵 #mapping
Digital Elevation Models, Old Maps, And Cultural Heritage—Geospatial Assets For The Digital Humanities
--
https://doi.org/10.3389/fcomm.2025.1507385 <-- shared paper
--
#GIS #spatial #mapping #spatialanalysis #spatiotemporal #water #hydrography #remotesensing #earthobservation #landscape #humanimpacts #landforms #DEM #elevation #LiDAR #oldmaps #historicmaps #culture #society #infrastructure #community #change #DigitalHumanities #geography #cartography #environment #culturalheritage #Nederlands #LingeRiver #engineering #precisionmapping #understanding #history
🗺️ Day 13 — #30DayMapChallenge | 10 Minute Map
Today’s theme was all about speed: create a full map in just 10 minutes. ⏱️
I put together a quick Melbourne land-use map, showing how residential areas, parks, industrial zones, and transport corridors shape the city. Even in a fast workflow, the spatial patterns come through so clearly.
#GIS #Geospatial #Mapping #Cartography #Mapston #30DayMapChallenge #Melbourne #Australia
🗺️ Day 13 — #30DayMapChallenge | 10 Minute Map
Today’s theme was all about speed: create a full map in just 10 minutes. ⏱️
I put together a quick Melbourne land-use map, showing how residential areas, parks, industrial zones, and transport corridors shape the city. Even in a fast workflow, the spatial patterns come through so clearly.
#GIS #Geospatial #Mapping #Cartography #Mapston #30DayMapChallenge #Melbourne #Australia
En.osm.town is an independent Mastodon server for OpenStreetMap people. Funding graciously provided by the OpenStreetMap Foundation.
This server has been online since 2018.
You can find out more at https://en.osm.town/about or contact the admin account @compass
#FeaturedServer #OpenStreetMap #OSM #Maps #Mapping #Cartography #GIS #Geospatial #Geography #Mastodon #Fediverse #FreeFediverse
En.osm.town is an independent Mastodon server for OpenStreetMap people. Funding graciously provided by the OpenStreetMap Foundation.
This server has been online since 2018.
You can find out more at https://en.osm.town/about or contact the admin account @compass
#FeaturedServer #OpenStreetMap #OSM #Maps #Mapping #Cartography #GIS #Geospatial #Geography #Mastodon #Fediverse #FreeFediverse
Completely taken by the 2025 Local Deprivation maps on gov.uk:
https://deprivation.communities.gov.uk/maps
These maps are painting such a sad & harsh picture of the country (well, at least of England)! Been spending the past hour or so checking out various places I've been to, worked and lived in — for some of them they confirm nothing seems to have changed (for the better) in 15+ years. E.g. Central Sunderland[1] still is 99% more deprived than the rest of England, many neighborhoods in the larger cities are faring pretty bad too. Austerity visualized. Would be great if there would be a time travel option available, to see/compare these maps before/after Brexit...
[1] Back in 2010, Sunderland was an eye-opening experience for me (of a VERY different England than I knew from the south), when I was there a few times developing & installing the generative and agent & sensor-driven animation/software for the 140 meter long LED wall on Platform 5 at the main train station. It seems the project might still be running after all these years (never had a single support call), and it's still the first image on Google Maps... 🙌
https://maps.app.goo.gl/NyQdf5ghkosLYadi7
[2] I always admired the UK datastore, the amount of available national data and the related mapping/infoviz culture. I built quite a few projects with their data myself, but have yet to find anything comparable for Germany. https://www.govdata.de just seems a lot more disparate and limited...
Completely taken by the 2025 Local Deprivation maps on gov.uk:
https://deprivation.communities.gov.uk/maps
These maps are painting such a sad & harsh picture of the country (well, at least of England)! Been spending the past hour or so checking out various places I've been to, worked and lived in — for some of them they confirm nothing seems to have changed (for the better) in 15+ years. E.g. Central Sunderland[1] still is 99% more deprived than the rest of England, many neighborhoods in the larger cities are faring pretty bad too. Austerity visualized. Would be great if there would be a time travel option available, to see/compare these maps before/after Brexit...
[1] Back in 2010, Sunderland was an eye-opening experience for me (of a VERY different England than I knew from the south), when I was there a few times developing & installing the generative and agent & sensor-driven animation/software for the 140 meter long LED wall on Platform 5 at the main train station. It seems the project might still be running after all these years (never had a single support call), and it's still the first image on Google Maps... 🙌
https://maps.app.goo.gl/NyQdf5ghkosLYadi7
[2] I always admired the UK datastore, the amount of available national data and the related mapping/infoviz culture. I built quite a few projects with their data myself, but have yet to find anything comparable for Germany. https://www.govdata.de just seems a lot more disparate and limited...
🗺️ New OSM file format: 30% smaller than PBF, 5x faster to import
「 we created GOB (“Geo-Object Bundle”), a new file format that makes tackling OSM data faster and easier. It’s a companion format to our now-familiar Geo-Object Library (essentially, a tightly-compressed GOL with its indexes stripped) 」
Mapping the off-target effects of every FDA-approved drug in existence
https://www.owlposting.com/p/mapping-the-off-target-effects-of
#HackerNews #Mapping #Drugs #Off-Target #Effects #FDA #Approval #DrugResearch #Healthcare #Innovation
Mapstodon.space is a Mastodon server for cartography & geospatial professionals and enthusiasts. Ask questions, share your maps, chat around, enjoy the emojis!
You can find out more at https://mapstodon.space/about or contact the admin @jeremy
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