From early 2015, Eversholt commissioned Alstom to perform an extensive £36.1m overhaul of the entire fleet to improve passenger conditions, which included the retrofitting of full air conditioning, at-seat charging points, provision for wi-fi, passenger counting equipment, cycle spaces, LED lighting and CCTV in the saloons, and an upgraded CCTV system for driver-only operation. Improvements were also made to the reliability of the passenger doors, and the original Tightlock couplings were replaced with Scharfenberg-type automatic couplers manufactured by Voith, allowing Class 334 units to rescue and be rescued by units. The overhaul process was completed in 2017. On 22 June 2021 during Pride Month in the United Kingdom, a Class 334 was unveiled with progress flag colours. ScotRail stated that the livery would remain in place until 2029, after which the metalwork underneath would require repainting. In 2023 Alstom was awarded a contract by Eversholt Rail to overhaul the Class 334 fleet. The work, with a contract value of £12 million, will be carried out at Polmadie Depot and is planned to start in January 2024. Accidents On 16 January 2008, 334017 was involved in a minor collision whilst entering Glasgow Central station. The unit was working the 08:24 Gourock to Glasgow Central service when it collided with an empty, stationary Class 318. The train was travelling at less than when the collision occurred. Four passengers were slightly injured; however only one required hospital attention, and was transferred to Glasgow Southern General hospital in a taxi. The unit was undamaged. On 15 October 2015, 334016 was involved in a collision on the approach to Uphall railway station. The unit was working the 16:39 Edinburgh to Milngavie service when it collided with an empty Toyota Hilux pick-up truck which had been stolen and abandoned on the tracks. The train was travelling at approximately when the collision occurred. The unit did not derail, but one passenger suffered minor injuries to their hand from broken glass. Fleet details References 334 Alstom Coradia Juniper Train-related introductions in 2001 25 kV AC multiple units