I was a lowly TOPS clerk in the late 80's and I was wondering if the system is still in use and if not what was it replaced with if anything. For its time it was revolutionary and as a spotty 18 year old it was actually nice controlling some aspect of the railway. As part of our remit at Leicester the TOPS office got to plan the local trip workings ( we still had them in those days!!) and we had class 47's flying all over the place at our beck and call!