Trains can be sorted into types based on whether they haul passengers or freight (though mixed trains which haul both exist), by their weight (heavy rail for regular trains, light rail for lighter rapid transit systems), by their speed, and by what form of track they use.
Speed is suggested in such names as Cannonball, Hot Shot, Blue Streak, Bullet, Comet, Rocket, Meteor, Thunderbolt and Flash. Many trains are named for animals, such, for instance, as Man o' War, Black Cat, Yellow Dog, Bulldog, Badger and Bison.