Astroforce

The Astroforce were a group of sentient(?) Trains created by Astrotrain. They managed to move forward without aid, but unfortunately were unable to grasp the concept of "Brakes" and "Stop!" and "That's a water main!".

The Astroforce was presumably disbanded when all the members were washed away when they hit the aforementioned water main.

From Teletraan I: The Transformers Wiki, a Wikia wiki.