Any reason why EC are/ have been conducting route learning on GN/GE Joint Line. I see that this appeared scheduled for tomorrow (13/05/2014) from Doncaster West Yard to Peterborough with a return.
http://www.realtimetrains.co.uk/train/O97972/2014/05/13/advanced
http://www.realtimetrains.co.uk/train/O97972/2014/05/13/advanced