Hey Evan,
What I am referring to are the trackside signs along Canadian railroads such as yellow or white triangular signs, double black diamond on yellow backround, green, yellow or black squares, combination of red and yellow square, etc.
These signs announce to train crews about CTC trackage, upcoming crossings overhead powerlines etc.
Any ideas where I might find a list of what these different signs mean and where and when they would be used?
Thanks