Really cool but I'm not sure what's to be gained by it being 3d? If I were to use this as a daily utility it'd happen on my phone while out and about, so I imagine all the rendering could be a critical loss of performance for such a use case. Also seems like an overly complicated way to organize such a dense amount of information? At least a toggle between 2d/3d would be good
At personal levels, you either type in (time, origin, goal) into a map or a route finder app and get on trains in sequence as the app says, or do a rudimentary graph search in your head[2] and hope you don't hit 10 minute gaps between trains, which happens, but it's 10 minutes tops anyway.
1: https://www.gettyimages.com/detail/news-photo/corp-trains-il...
2: This shows hub and spoke model works for trains, but why not for air travel?