Ensure population is distributed sensibly across the study area for 3rd zoom level

[Robinlovelace]

Related to #34

[joeytalbot]

If this relates to destinations, then it's more about workplace population than resident population.

[Robinlovelace]

For origins and destinations - see #32 (comment)

Also from @joeytalbot - ensure not everyone goes to small random places (e.g. assign probability relative to building size).

[dabreegster]

Area of buildings multiplied by the building:levels tag seems relevant. Also the number of POIs / businesses located inside could be relevant.

[mvl22]

It might be worth using the OSM landuse tag to determine whole commercial, education, or other areas. These will likely be a proxy for where people work.

I expect that would result in a reasonable correlation with the manual list of employment areas for Cambridge that I listed in another thread.

Obviously residences can easily be found from residential buildings.

[Robinlovelace]

Agreed. Do you think it would be useful to visualise landuse polygons in the Zoom 2 work @mvl22? Could also be useful in terms of considering other sites (imagine there's a 'brownfield' tag) is my thinking.

[Robinlovelace]

Great Kneighton start of day.

[Robinlovelace]

End of day.

[dabreegster]

To clarify how to find commercial places in OSM: sometimes the way or relation representing the building has useful tags, but often not. For example, https://www.openstreetmap.org/way/191546286 just has building=yes. You need to import all of the nodes and look for things like amenity=... -- example https://www.openstreetmap.org/node/298858209. If you wanted to match that to a building, you have to find which building physically contains the point. But since abst snaps trip endpoints to a building anyway, you could just skip that step and use the node's location.

And per https://github.com/a-b-street/abstreet/blob/23b19fa7ce9e5098705b9b5852efaca1c0891ee1/convert_osm/src/extract.rs#L535, looks like sometimes things're listed as shop=... too

[Robinlovelace]

Update: