Crowd-sourced interactive map of indoor CO2 levels in non-residential spaces: https://indoorco2map.com
Crowd-sourced interactive map of indoor CO2 levels in non-residential spaces: https://indoorco2map.com
PoliMappers is organizing a call for interest, an excellent opportunity if you are interested in the world of mapping with OpenStreetMap!
PoliMappers sta organizzando una call for interest, un ottima occasione se siete interessati al mondo del mapping con OpenStreetMap!
#polimi #milano #openstreetmap #callforinterest #mapping
@internet @tecnologia @openstreetmap_it @openstreetmap @lambrate
My contributions to the commons, year in review thread:
In 2025 I had 40 mapping days with 138 changesets to OpenStreetMap. That's the fewest contributions I've had since 2018, and 78 fewer days than in 2024.
Still, it's not nothing, you know.
E: Within these changesets there's 3158 contributions according to my profile on OSM, whatever that means… First heatmap is from https://hdyc.neis-one.org/?forteller second from https://www.openstreetmap.org/user/forteller
Doing some mapping on Madagascar while watching Ted Lasso
Apple Maps claims it's 29,905 miles away
Mapping Amazing: Bee Maps
https://maphappenings.com/2025/11/06/bee-maps/
#HackerNews #Mapping #Amazing #Bee #Maps #Bee #Conservation #Nature #Technology
CoMaps emerges as an Organic Maps fork
https://lwn.net/Articles/1024387/
#HackerNews #CoMaps #OrganicMaps #Fork #OpenSource #Mapping #TechNews
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
#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
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