I'm honestly not sure how to explain it without a visual assistance, but I'll try my best.

Signals can be placed on either end of the rail, regardless of the "pre-set" direction of the rail.

Let's say you want to build a rail system, and while planning it all out, your mind wanders slightly and ...

I don't know if the topic has been proposed before, *very* new to the forum.

The short of what I'm suggesting is simply "Directional rails".

The long of what I'm suggesting is:
What if there were rails that were directional? What if they followed a similar system to the currently implemented ...