Discussion
#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. 馃У
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/
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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?
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.
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