This is frustratingly close to amazing. Obviously you went through all the trouble of pulling all the data from all the trains and displaying them in 3d, but then lock our view on to just one train or one station while all that interesting information zips around in the periphery. The view port needs to be more free form...less on rails.
This is a fun idea and interesting implementation. I know there's only so much an api can give you, but I'd love to see anything that gives more information or visuals of the surroundings.
I saw a project like that here in hn recently for all uk trains even. it'd be pretty cool to extend this to support that, busy stations might be visually confusing, thanks for suggestions
Is it not that certain train lines are somewhat deep underground? The Piccadilly line swims with respect to the ground in the centre of town, when it is below ground. Further out where lines are at the surface the routes stick to the ground correctly.
Quick suggestion: When not tracking a train, the mouse wheel should zoom into / out from where the cursor is pointing, rather than the center of the window.
The train paths are drawn on a 2D layer above the buildings, not at z-index that matches the proper 3-D position. So the paths appear to weave around and over the tops of buildings.