Dense traffic in Newcastle, from left to right: Colas Rail track and overhead wire inspection test train with leading diesellocomotive 67 # 023 and 67 # 027 in the rear, from Heaton Maintenance Depot via Newcastle (switckback) to Edinburgh-Glasgow. Diesel HST of the LNER with leading power car 43 # 305 and 43 # 277 in the rear, running train 1E09 from Edinburgh Waverley to London Kings Cross. Electric locomotive 91 # 107 with LNER push-pull train with Mk4 cars, running the 1S07 from London Kings Cross to Edinburgh Waverley.