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nptscot / npw

https://nptscot.github.io/npw/
Apache License 2.0
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Auto-assign recommended infra type #30

Open dabreegster opened 1 month ago

dabreegster commented 1 month ago

After drawing a route, calculate the recommended infra type for each segment. Automatically split based on this. Maybe it'd be most clear to have this done as a user-initiated action first, instead of automatically. Have to think through how editing then works.

Also need to figure out what inputs are needed to calculate this; I think the speed (limit or observed?) of the road is the main thing

Robinlovelace commented 1 month ago

I think CbD guidance has a lot to say on this:

image Source: https://www.transport.gov.scot/media/50323/cycling-by-design-update-2019-final-document-15-september-2021-1.pdf#page=56

That shows that observed speeds are more relevant, but we cannot use them here for the public app so suggest we fall-back to OSM or inferred values.

Clearly there are multiple options that would deliver a high level of service in many case. The approach of collapsing the 3 types of segregated infra into a single category can help here and I think recommending the minimum for high level of service and simply saying it should be a "Segregated Track (wide)" in many case is fine, the main type of infrastructure that I expect to see recommended.

dabreegster commented 1 month ago

This'll require a per-road segment estimate of speed and PCU. Happy to start with tagged OSM speed limits for the first. For the second, @juanfonsecaLS1, where can I find the latest output from your model? Thanks!

juanfonsecaLS1 commented 1 month ago

Hi Dustin, the latest results are in release v6 of the scottraffic repo.