Garmaine Staff asked 2 years ago

While traveling Europe, I noticed codes written on trains (public transport as well as cargo), which are written like words but seem to be codes. Examples: Shimms, Shimmns, Tads. Case exactly as written. Dutch and Austrian trains.

When googling, we get pictures of mainly cargo wagons, like it was a particular make or model of something. But no explanation. Are these codes? What information do they convey?