Editing Train (section)

=== Rapid transit ===
[[Rapid transit]] use trains that operate in tunnels below ground, on [[elevated railway|elevated structures]] like viaducts or bridges above the ground, often on top of city streets or on surface level with an independent alignement from other traffic. In many systems, two or even all three of these types may exist on different portions of a network. Alternative terms for these systems are subway, underground, metro, or heavy rail, the latter indicating higher investment costs and passenger loads compared to light rail.

[[File:New_Orleans_Streetcar_461_on_Carondelet_Street,_24_August_2021_-_02.jpg|thumb|The [[Streetcars in New Orleans|New Orleans Streetcar System]] is the oldest in the world.]]