-- 0.07386350632 measured from train wagon orientation, still off very tiny bit
local rail_est = 0.07405 -- Best estimate so far 0.07405
local lockAxis = {
rail_est, 0.25-rail_est, 0.25+rail_est, 0.5-rail_est,
0.5+rail_est, 0.75-rail_est, 0.75+rail_est, 1.0-rail_est }
As it seems 1:2 is ...

But i never considered this mod to actually use more than 8 rail directions, the extra angles between were just for immersion. I set it to 8 in mod settings myself.

Ok, you are using only 8 directions when playing the game.
Nevertheless the most popular user choice is 16, not 8.
So thank you for ...

Thanks for the most useful Factorio mod! (BTW, it is not a joke)
I like to drive a car along rails, and it was not a problem in Factorio 1.x due to this nice mod!
But in Factorio 2.0 there are 16 rail directions instead of 8, and they are not placed at equal angles anymore.
So, by setting snap ...