🚦 A brand new signalling system will replace ageing equipment dating back to the 1970s on the Northern City Line. 🚆 Some of the old equipment even ran on compressed air. The change will reduce delays and create a more reliable service for you. ✅ 👉 https://www.networkrailmediacentre.co.uk/news/new-signalling-to-give-passengers-better-journeys-on-great-northerns-route-to-city-of-london | Network Rail