It makes them self guiding.
Trains run on tracks. The tracks are made up of a pair of parallel rails.
Trains travel on rails ...
Smoke
Tracks
Tracks
Train tracks are not magnetic. They are typically made of steel or iron. However, trains use magnets for various purposes, such as in braking systems and signaling. Magnets on the tracks can help control the speed and direction of trains, but the tracks themselves are not magnetic.
Old tracks have a small gap between each section of the rails, as the metal wheels of the train pass over the gap they make that familiar clackerty clack noise, however trains on modern tracks do not make the noise because the tracks are welded together and have no gaps.
Trains that run on tracks.
There are various different types of trains sold by MTH Trains. MTH Trains sells electric toy trains, and train tracks for their trains primarily, though.
Trains drive on railroads or tracks.
They use freck'in wheels!
They are used for trains to ride on them