How come CN and CP don't seem to care where they put the heads on the mast, sometimes it's right of the signal, sometime the left, sometimes the middle, and for permissive signals it's either left/right or right/left. Why can't they decide one placement of the heads?
For example.
The signal on the left track has heads on the left, while the signal on the right has heads on the left.
While here
Both signals have heads facing to the right.
Can someone explain this?
For example.
The signal on the left track has heads on the left, while the signal on the right has heads on the left.
While here
Both signals have heads facing to the right.
Can someone explain this?