RMT helpline 0800 376 3706 :: february 2021 :: RMTnews 24 The Abermule train crash was a head-on collision which occurred on single track at Abermule, Montgomeryshire, Wales on January 26 1921, killing 17 people. Yet in August 2019, an operating irregularity on the Romney, Hythe and Dymchurch Railway in Kent resulted in two passenger trains being on a single track section of line heading in opposite directions. The trains stopped before a collision occurred. But the Abermule accident was cited as having "clear parallels with the events leading up to the incident at Romney Sands". The Abermule crash arose from a catalogue of misunderstandings which effectively over-rode the safe operation of the Electric Train Tablet system protecting the single line. A train departed carrying the wrong tablet for the section it was entering and collided with a train coming the other way. The Cambrian Railways, which traversed Wales from Whitchurch in Shropshire to Aberystwyth and Barmouth, via Dovey Junction, contained a number of single line sections. The small station of Abermule was a crossing station between two such sections. To protect the single line sections, Tyer's Electric Train Tablet apparatus was used. Two linked tablet instruments were used on each section, one at each end. To allow a train to proceed into the section, a call button would be THE ABERMULE TRAIN DISASTER ONE HUNDRED YEARS ON On the centenary of the fatal Abermule train disaster lessons are still being learned