There is a sizeable market between DTV and Aberdeen that is currently being stifled by Eastern's high fares, and probably recent reliability issues don't help either. I know (my dad is one) a lot of oil/gas industry personnel currently travel by road/rail as it is more economical to do so. Obviously for Norwich there is no other option at present, but I'd expect it to do fairly well out of the (somewhat smaller) amount of offshore workers travelling to Norwich.