new junction called Gun Lane Junction just over a mile west of Trimley station. Both lines can be worked bi-directionally and with the increase in freight traffic that resulted from the additional capacity a number of level crossings were either abolished or upgraded to improve safety. New Class 755 trains from Swiss manufacturer Stadler Rail were introduced to the line on 19 November 2019. Accidents On 1 September 1900, there was a collision at Felixstowe station. An up passenger train started off for Ipswich despite the signal not being set to permit this move. There was a freight train arriving at the time and the two trains collided at relatively low speed resulting in 12 injuries. The investigation was undertaken by Lt Colonel P G Donop for the Board of Trade. After interviewing all the staff involved (train crew, signalman and station master) concluded that the fault lay with the driver (which he readily admitted) who had passed the signal at danger. The locomotives involved were GER 474 (a GER Class T19) on the goods train and 791 (a GER Class M15) on the passenger train. A postcard showing the post-accident scene was produced. On 25 September 1900, at 08:45, GER Class Y14 0-6-0 locomotive 522, which was then just a year old, stopped at a signal on the Ipswich side of the level crossing at Westerfield awaiting a route to the Felixstowe branch. Shortly afterwards the boiler exploded killing driver John Barnard and his fireman William Macdonald, both of whom were based at Ipswich engine shed. The boiler was thrown over the level crossing and ended up on the down platform. The locomotive was reported to have had a history of boiler problems although in the official report the Boiler Foreman at Ipswich was blamed. The victims were buried in Ipswich cemetery and both their gravestones have a likeness of a Y14 locomotive carved onto them. On 19 July 1933, a signalling error caused a locomotive to run back into a rake of carriages after it had uncoupled from them. 13 people were injured. On 14 March 2018, a freight train collided with a car at the Routs crossing off Felixstowe Road near Nacton. One person, the driver of the car, was seriously injured. The driver of the train had no injuries. Signalling When the line was opened the trains on its single line were regulated by a staff