A very large LTN train depot with 80 train parking lots plus a PAX and a refueling station. The whole length of the station is glowing in the color, the signal in front shows (red, green or yellow).
There are only two inbound tracks immediately splitting up to eight segments that have an equal station count of ten and the PAX and fuel stations. Every segment has two outbound tracks that can and should be scattered around the depot.
Used mods:
Logistic Train Network (LTN) this is a improved version of https://factorioprints.com/view/-LDc3JSNq_m8MxU1vW9b it includes vanilla unloading with combinators that make switching fuels later on easy . it also includes safety circuitry that prevents contaminated trains from leaving (there is also an alarm that alerts the player).