[legojoey17]

This is awesome!

I did a similar thing and built isochronic maps while at a start-up for business intelligence back in 2014. I'm curious how you got the going, data processing and all.

When I'd done it I set up all roads and continents in OSM but it took quite a bit of work to do so. I'd used Osmium to import everything into postgres and set it up to using pgrouting. It took quite a bit of work but with a lot of query mangling it had a lot of traversal cost variates (street type, population, daytime pop) it had pretty good approximations of Google!

The most awful part was trying to set up the data to be usable, quick, and deal with large queries (set it up for a maximum 150km without issue), but it was a great challenge!