Satisfactory has quite the satisfactory railway mechanics: in addition to what you say what you want with them, you also have to place proper semaphores in order not to have them crashing each other.

Efficient networks require roundabouts and double one-way tracks, but sometimes it’s much more convenient to either have maze-like single one-way tracks (makes paths longer) or two-way tracks (blocks traffic, and gets worse the longer it is).

… there is no “intellgence” with vehicle paths, though: trucks and trains always pick the shortest path, and if they’ve gotta wait, they’re gonna wait.