Version 1.5 development is now underway, with timetables being the star of the show. But before timetables development was started it was time to make train AI multithreaded in order squeeze as much performance as possible from the game. With that goal finished, a first prototype of timetable data and pax pathfinding was implemented, with encouraging results, but with a big performance impact, as expected. More optimizations and even game design changes will be required before timetables are playable, but the current foundations appear solid and correct.
https://carloscarrasco.com/nimby-rails-june-2022/