Hi,
I have recently read :
"4 aspect signalling, reduced overlaps and permissive working are all examples of signalling principles made flexible to meet operational needs."
does anybody know how exactly 4 aspect signalling falls into this category?
thanks
fil
I have recently read :
"4 aspect signalling, reduced overlaps and permissive working are all examples of signalling principles made flexible to meet operational needs."
does anybody know how exactly 4 aspect signalling falls into this category?
thanks
fil

