20-05-2016, 07:24 AM
Hi,
As of my experience I had found three types of overlaps in absolute block working system under colour light signalling for Indian Railways i.e., Signal O/p - 120m, Block O/p - 180m, Intermediate Block O/p - 400m. Can anyone explain me why these are different and how these distances are kept
Unlike in UK a fixed overlap distance of 200yards (183m), why in IR fixed overlap is not followed
Thanks in advance
As of my experience I had found three types of overlaps in absolute block working system under colour light signalling for Indian Railways i.e., Signal O/p - 120m, Block O/p - 180m, Intermediate Block O/p - 400m. Can anyone explain me why these are different and how these distances are kept
Unlike in UK a fixed overlap distance of 200yards (183m), why in IR fixed overlap is not followed
Thanks in advance
KKD