Fastrack is a bus rapid transit scheme in the Thames Gateway area of Kent. It consists of three routes, operated by Arriva Southern Counties on behalf of Kent County Council with Prologis and Amazon respectively. Measures used to allow buses to avoid traffic include signal priority, reserved lanes, and dedicated busways. Routes Construction work on Fastrack started on Thursday, 23 September 2004, and it began operating with the introduction of Fastrack B on Sunday, 26 March 2006 between Temple Hill and Gravesend, serving Darent Valley Hospital, Bluewater Shopping Centre, Greenhithe station (and Ebbsfleet International station since it opened on Monday, 19 November 2007). Services operate from 05:30 until after midnight. The 9.5 km (5.9 mi) long Fastrack A was added on Sunday, 3 June 2007. It operates up to every ten minutes between Dartford and Bluewater along the western side of Temple Hill, The Bridge Crossways Business Park and Greenhithe station. Fastrack A is part-funded by Prologis, the developers of The Bridge. On Monday, 23 August 2021 the 24-hour route AZ was added to the network serving the new Amazon LCY3 distribution centre in Dartford. The route was initially operated by Go-Coach between Dartford and Gravesend up to every 15 minutes, 24 hours a day. The route was operated by Go-Coach using Alexander Dennis Enviro400 vehicles. On Sunday, 3 April 2022, route AZ was modified to only run at shift changeover times at the LCY3 centre and at the same time, was transferred to Arriva Kent Thameside. Current Routes Route changes When Fastrack B began it was divided into five fare zones. They were replaced with the current three zones when Fastrack A began to simplify the fare structure and to ease the introduction of off-vehicle ticket machines. Prior to the opening of Ebbsfleet International on Monday, 19 November 2007, Fastrack B ran through Northfleet. The diversion along Thames Way to the station, connecting with Eurostar and Southeastern High Speed services, added 2 km (1¼ mi) of junction priority and segregated lanes. Northfleet is still served by conventional Arriva routes 480 and 490. For the first four months of operation, Route A ran on a temporary alignment via Junction 1a of the M25 motorway to link The Bridge, Dartford, development site with Crossways Business Park. From Sunday, 30 September 2007 it was diverted via a dedicated bridge over the Dartford toll plaza and under the QE2 Bridge of the Dartford