I’m curious about the different signal codes used across various regions. As a signal maintainer, I often deal with the basics like ABS and dwarf signals, but I’ve heard there are unique codes in some areas that can really affect operations. Anyone have interesting experiences or knowledge about those?
In my experience, some regions use unique combinations of lights and colors that can differ significantly from standard codes. For instance, I’ve noticed that in certain areas, a flashing yellow can indicate a different action than what you might expect. Have you seen anything similar where you work?
I’ve noticed that in some areas, signal codes can even use different light sequences for the same signals — for example, a flashing yellow in one region might mean caution while in another it signals prepare to stop. It’s fascinating how local practices shape what we use every day.