the inter-city express bus services operated by Ulsterbus. Originally launched as the 'Northern Ireland Express' in the 1970s, these services were rebranded to 'Goldline' in 1990, with the Belfast-Derry express service relaunched as the 'Maiden City Flyer' with eight new coaches in 1991. This service has seen major expansion over the years: Belfast-Derry 212 service went from a thrice daily service in 1990 to half-hourly frequency, and many services have been expanded and introduced. Goldline services are operated from Belfast to major destinations in Northern Ireland, plus the Goldline Express Services X1/X2 (previously Service 200) to Dublin (via Dublin Airport). This service was worked jointly with Bus Éireann service X1 (previously Service 001) until December 2020, where the service changed to be worked 100% by Translink. There are also a number of cross-channel (North Channel) services to Britain, operated in partnership with National Express under the Eurolines banner. Foyle Metro For many years, Derry's internal bus network was operated as Ulsterbus's Derry City Services. The network was relaunched as Ulsterbus Foyle on 4 September 2006 following a review and expansion of the city's bus routes and replacement of many of the city's older buses. Ulsterbus Foyle was later rebranded as Foyle Metro on 1st September 2017, with the buses branded in a deep red livery. The rebranded service now operates across 14 high-quality bus corridors with new timetables. It represents an investment of over £3m, consisting of 19 brand new buses and many others refurbished. In 2022, the Infrastructure Minister Nichola Mallon announced £30 million worth of funding for 38 zero emission battery electric buses for Foyle Metro. This will mean that the city's entire urban fleet will be replaced with electric buses, making it one of the first cities in the UK and Ireland to have a fully zero-emission bus fleet when all the vehicles enter passenger service in Spring 2023. The announcement was made at the United Nations COP26 conference in Glasgow. Translink Chief Executive, Chris Conway, also said this would be "a mix of both [28] single and [10] double decker buses bringing enhanced capacity and with the latest passenger comfort features including WiFi, USB chargers and accessibility features like audio visual next stop announcements". These buses will be supplied by local manufacturer Wrightbus, in the form of Wright Streetdeck and Wright GB Kite Electroliner BEVs. UniLink Ulsterbus used to operate the "University Link" service 163a between