^ IWhilst I actively support STAG in their campaign for better STJ services, in my opinion I do feel their claim of a 2.5 minute turnaround at Bristol TM is rather too ambitious. I have rarely seen a busy Cardiff-Portsmouth service train ready to depart at this time. The sheer volume of people leaving and joining at BTM pushes it beyond that time especially if it's a short working. It also leaves little time for the recovery of delays.
I don't think their argument is that 2.5 minutes is adequate, or that they propose it. One thing that suprises me is that a 0829 departure from Cardiff is not considered. The headways should be adequate as far as STJ, particularly with the extra platform at Newport. But again, maybe the rules stipulate 5 mins minimum?
