The Human Factors Team at Bombardier Transportation in Derby advised on cab layout, alarm design, HCI design as well as the design of the saloon layout and passenger information provision. The first trains entered service on 31 August 2010 and the 8 car ‘S’ Stock is currently in use on the Metropolitan Line. Not only are passengers benefitting from air conditioned saloons with wide open gangways, provision for wheelchair users and multi-purpose areas, the needs of drivers are met by in-cab monitors, a sit/stand workstation and provision of an adjustable seat and footrest. The Bombardier Human Factors team adopted a systems approach in developing the ‘S’ Stock. This ranged from the design of alarm systems and cab layout for the driver to the height of passenger door windows, position of customer information displays and passenger alarms. The final product reflects a great deal of stakeholder consultation on how to best meet these needs.