Canadian Railway Signals

Canadian railway signal interpretations and definitions (based on Canadian Rail Operating Rules - CROR).

You can either select your own signal pattern and mast style or have some "fun" and let the system pick a pattern for you (Game Time).

Are you new to world of railroading or need to brush up on your signals for an upcoming review?

Signals is a great learning tool. With Signals you can perform what-if scenarios with various signal patterns. How would a signal definition be changed if a light was blinking instead of being on? What effect does adding or removing a letter plate have?

This utility handles all 129 valid light and letter plate combinations.

The following aspect combinations are included:
• Mast style with single, double and triple aspects.
• Staggered and non-staggered aspects.
• Single and double aspect dwarf signals.
• Letter plates (except double letter plate signals).

NOTE: CROR signal definitions apply to all Canadian Railway companies. Rail transit systems such as Go Transit may change the signal patterns and definitions to better suit their particular needs.