Data for visualization

[Manuel-Knepper]

Generate data fro visualization for web dev

[anastassiavybornova]

@Manuel-Knepper @mszell could we either: close this one as too broad; or: have a more specific task here (data from where, which algorithm, which format, which citie/s, ... )

[mszell]

Yes makes sense. I would leave it open for now though, to be revisited/clarified with the web-dev.

Generally, we want at least 2 cities for each algorithm. Format geoJSON will make most sense (I already have an export-script for it that we should turn into lib-functions, and also the data somewhere), or gpk if the web-dev can handle it.

Growbikenet-specific: from each of the algorithms like on growbike.net: grid seeds / rail seeds × betweenness / closeness / random (where × is the cartesian product, so 6 versions per city). Cities TBD

[mszell]

Ok, some more thoughts, discussed today with @Manuel-Knepper : The webdev should implement 2 cities and give us instructions how to add more in the future. Then, after 2026, I'd like to make a list of the largest cities on the planet, say all above 100k population, to generate data+visualizations for all of them, for all our algorithms. So that visitors to the website are immediately geo/IP-matched to their (closest) city, can explore it, and share results online - a bit like we tried with growbike.net. (This is apart from the external UMP implementation which will be linked and which can also cover many more smaller places and/or produce potentially different things on the fly.)

So, the exported data sets will probably need to be memory-efficient, which means that geoJSON might not be the best choice in the end. We might need to think about compression or a smart way of storing data.

[mszell]

The list could be generated from here: https://en.wikipedia.org/wiki/List_of_towns_and_cities_with_100,000_or_more_inhabitants

A first step could be the 505 1M+ cities: https://en.wikipedia.org/wiki/List_of_cities_with_over_one_million_inhabitants ∪ ~200 capitals: https://en.wikipedia.org/wiki/List_of_national_capitals

[mszell]

Moved to discussion https://github.com/orgs/BikeNetKit/discussions/4