Track

The track on a railway or railroad is the structure consisting of the rails, fasteners, railroad ties (sleepers, British English) and ballast (or slab track).

In Train Fever, there are two types of track: tracks built on wooden ties (standard track), with a 120 km/h speed limit, and tracks with concrete ties (high-speed track), having a 300 km/h speed limit.

Train station
A train station is a station where trains can stop to pick up and/or drop off passengers and cargo.

Train depot
A train depot is a building where the player is able to buy, build, store and sell trains.

Signal
A signal is an entity placed on tracks which indicates to trains when it is safe or unsafe to proceed.

Waypoint
A waypoint is an entity placed on tracks that can be set as a step on a line, forcing a train following the aforementioned line to pass by it.