ATO, in some implementations distinguishing the ATO systems' auto-acceleration function with the indigenously developed TASC auto-braking system, which the latter would theoretically still be able to function without driver input if the former malfunctions. Port Island Line and Rokkō Island Line of Kobe New Transit, opened in 1981 and 1990 respectively, as well as Disney Resort Line monorail of Tokyo Disney Resort, opened in 2001, use GoA 3(+), while people mover systems such as the Yurikamome line in Tokyo, opened in 1995, and the Linimo low-speed maglev line in Aichi Prefecture, opened in 2005, use GoA 4. Busan Metro Line 1 was the first line in the Korean Peninsula to feature a GoA 2 ATO system upon its opening in 1985. This was followed by Seoul Subway Lines 5, 7 and 8 in 1996, Daegu Metro Line 1 in 1997, Incheon Subway Line 1 in 1999, Seoul Subway Line 6 in 2000. Gwangju Metro Line 1 in 2004 and Daejeon Metro Line 1 in 2006. Seoul Subway Line 2 introduced GoA 2 operation using an ATO system developed by Siemens in 2011. Currently, six Seoul Subway lines, three Busan Metro lines and all Daegu, Daejeon and Gwangju Metro lines, as well as the AREX and Seohae Line are operated with GoA 2 ATO, while Busan Metro Line 4, Gimpo Goldline, Incheon Airport Maglev, Incheon Subway Line 2, Shinbundang Line and U Line are operated using GoA 4 ATO. In the United Kingdom, the Thameslink core section through Central London between and became the first ATO route on the National Rail network in 2018. This has since been extended south from Blackfriars to London Bridge. The Elizabeth line, which opened in 2022 as the central element of the Crossrail project, is equipped with the ATO-supported Siemens Trainguard MT CBTC on its core central section between London Paddington station and Abbey Wood railway station, while the branch to Heathrow Airport is fitted with ETCS Level 2 superimposed with ATO, as well as the section of the Great Western Main Line from Paddington to Heathrow Airport Junction overlaid on top of the existing TPWS and AWS safety systems. German ICE high-speed lines equipped with the Linienzugbeeinflussung (LZB) signalling system support a form of GoA 2 ATO operation called AFB (Automatische Fahr- und Bremssteuerung, lit. automatic driving and braking control) which enables the driver to let the on-board train computer drive the train on