While staying at the station we observed activity which was not normal and deduced that the yellow vehicle parked in the bay was about to do something. Right - although "about" didn't mean straight away. Much later, after I had gone indoors, I heard an engine rev up and went out to see. And so they were, finally, off. Having driven out of the bay onto the main, they then proceeded down the "up" line (indicating, i imagine, that they had total possession of that bit of line). Filmed in Cumbria, England, UK.