Wese v KGP interlocking mjhe aaj tk confusing hi lga h. I hv passed minimum 400-500 times bt aajtk mjhe KGP yard smjh nhi aya. Bt yes, SSI ixl hone k bd route setting wud be a matter of few clicks,i.e., more easy, more efficient as response wud be faster n conflicting routes setting wud become zero (I assume) which was possible in manual route setting in RRI.