Signals

As Railway Operation Simulator was originally built as a simulation of railways within the UK, the available signal types are based on the UK signalling system.

Photo	Track Element	Signal Type	Description
		Two-Aspect	The simplest type which can display aspects of Clear and Danger
		Three-Aspect	Displays aspects of Clear, Danger and Caution, with the last aspect indicating either that the next signal is at Danger, or the route is terminating.
		Four-Aspect	Displays all aspects described above with the addition of Preliminary Caution which indicates the next signal is at Caution.