Highland main line upgrade: No 170412 arrives at recently-extended platforms at Pitlochry with an Inverness to Edinburgh Waverley service. The bagged off colour lights will be controlled from a panel in the box at Stanley, after which the semaphores will be removed and the listed signal box on the left of this photo made available for alternative uses. Work is being undertaken by Siemens in a £20 million contract that also encompasses new signalling at Aviemore.