# Concepts



- [纽约地铁L线](/en/concepts/nyc-subway-l.html)：第八大道至卡纳西–洛克威公园大道的东西向线路，横穿曼哈顿14街与布鲁克林，全时段运行。
- [纽约地铁E线](/en/concepts/nyc-subway-e.html)：牙买加中心–帕森斯/阿彻至世贸中心的全时段快车，经皇后区大道与53街线运行。
- [纽约地铁C线](/en/concepts/nyc-subway-c.html)：168街至尤克利德大道的第八大道慢车，工作日与白天时段运营，与A线共线。
- [纽约地铁A线](/en/concepts/nyc-subway-a.html)：因伍德–207街至远洛克威/勒弗茨大道的第八大道快车，全时段运行，含洛克威半岛多支线。
- [纽约地铁7号线](/en/concepts/nyc-subway-7.html)：法拉盛–缅街至哈德逊广场–34街的皇后区东西向快车，全时段运行，另有高峰<7>快车。
- [纽约地铁6号线](/en/concepts/nyc-subway-6.html)：佩勒姆湾公园至布鲁克林桥–市政厅的莱克星顿大道慢车，全时段运行，另设高峰<6>快车。
- [纽约地铁5号线](/en/concepts/nyc-subway-5.html)：东切斯特–戴尔大道至弗拉特布什大道的时段性快车，工作日高峰时段与4号线共线运行。
- [纽约地铁3号线](/en/concepts/nyc-subway-3.html)：哈莱姆–148街至新路段（New Lots Ave）的七号大道快车，工作日与白天时段运营。
- [纽约地铁2号线](/en/concepts/nyc-subway-2.html)：威克菲尔德–241街至弗拉特布什大道–布鲁克林学院的全时段快车，经白原路线、第七大道与诺斯特兰大道。
- [纽约地铁1号线](/en/concepts/nyc-subway-1.html)：范科特兰公园–242街至南渡口的全时段慢车，纵贯曼哈顿西侧百老汇走廊，共38站。
- [纽约地铁](/en/concepts/new-york-city-subway.html)：纽约地铁是全球规模最大、车站数量最多的地铁系统之一，共28条运行线路、472座车站，7×24小时运营，由MTA运营。
- [U2 (Nuremberg U-Bahn)](/en/concepts/ubahn-nuernberg-u2.html)：The U2 is a 13.2 km line of the Nuremberg U-Bahn with 16 stations; it opened on 28 January 1984 and has run from Röthenbach to the airport since 1999, driverless since 2010.
- [U2 (Hamburg U-Bahn)](/en/concepts/ubahn-hamburg-u2.html)：The U2 is a 24.5 km long line of the Hamburg U-Bahn with 25 stations; its first section was opened on 21 October 1913, and it runs from Niendorf Nord via the city centre to Mümmelmannsberg.
- [Administrative divisions of Germany](/en/concepts/germany-admin-divisions.html)：The administrative divisions of Germany follow the federal principle with the federation, 16 states and below them government regions, districts and municipalities.
- [ICE 50 (Dresden – Wiesbaden)](/en/concepts/ice-50.html)：ICE line 50 is the only east–west ICE line in central Germany and runs two-hourly from Dresden via Leipzig, Erfurt and Frankfurt am Main to Wiesbaden.
- [U3 (Hamburg U-Bahn)](/en/concepts/ubahn-hamburg-u3.html)：The U3 is the 20.7 km long ring line of the Hamburg U-Bahn with 25 stations; the first sections were opened in February 1912, and it operates as a ring between Barmbek and Barmbek with a branch line to Wandsbek-Gartenstadt.
- [U4 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u4.html)：At 9.2 km and 13 stations, the U4 is the shortest line of the Munich U-Bahn; it was opened in 1984 and runs from Westendstraße to Arabellapark.
- [U6 (Berlin U-Bahn)](/en/concepts/ubahn-berlin-u6.html)：The U6 is a 19.9 km long line of the Berlin U-Bahn with 29 stations, opened on 30 January 1923, connecting Alt-Tegel in Tegel with Alt-Mariendorf in a north–south direction via Friedrichstraße and Tempelhof.
- [U7 (Berlin U-Bahn)](/en/concepts/ubahn-berlin-u7.html)：With 31.8 km and 40 stations, the U7 is the longest line of the Berlin U-Bahn; it was opened on 19 April 1924 and connects Rathaus Spandau via Neukölln and Gropiusstadt with Rudow.
- [Long-distance coach Berlin – Munich (Flixbus)](/en/concepts/fernbus-berlin-muenchen.html)：The long-distance coach connection Berlin – Munich links the two largest cities of northern and southern Germany over around 585 km and is operated by Flixbus in about seven to nine hours.
- [ICE 12 (Berlin – Basel/Interlaken)](/en/concepts/ice-12.html)：ICE line 12 runs two-hourly from Berlin via Wolfsburg, Göttingen, Kassel-Wilhelmshöhe, Frankfurt am Main and Karlsruhe to Basel, with individual trains continuing into Switzerland (Interlaken, Brig, Chur).
- [U8 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u8.html)：The U8 is a reinforcement line of the Munich U-Bahn, introduced as its own line number in 2013, which runs on Saturday afternoons only over 19 stations from Olympiazentrum to Neuperlach Zentrum.
- [ICE 18 (Hamburg – Berlin – Munich)](/en/concepts/ice-18.html)：ICE line 18 runs two-hourly from Hamburg-Altona via Berlin, Halle and Erfurt to Munich; between Hamburg and Berlin it forms an hourly service with line 23.
- [U6 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u6.html)：The U6 is the oldest line of the Munich U-Bahn and, at 27.4 km, has the longest route of the network; the network was opened with it in 1971, and it serves 26 stations from Garching-Forschungszentrum to Klinikum Großhadern.
- [U2 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u2.html)：The U2 is the longest line of the Munich U-Bahn; it was opened in 1980, is 24.4 km long, serves 27 stations and runs from Feldmoching in the north to Messestadt Ost in the east.
- [Long-distance coach Cologne – Berlin (Flixbus)](/en/concepts/fernbus-koeln-berlin.html)：The long-distance coach connection Cologne – Berlin crosses the country over around 580 km and is operated by Flixbus in about eight to ten hours.
- [Long-distance coach Berlin – Dresden (Flixbus)](/en/concepts/fernbus-berlin-dresden.html)：The long-distance coach connection Berlin – Dresden links the federal capital with the Saxon state capital over around 200 km and is operated by Flixbus in about two to three and a half hours.
- [Long-distance coach Düsseldorf – Frankfurt (Flixbus)](/en/concepts/fernbus-duesseldorf-frankfurt.html)：The long-distance coach connection Düsseldorf – Frankfurt am Main links the Rhine metropolis with the financial centre over around 230 km and is operated by Flixbus in about three to four and a half hours.
- [Long-distance coach Hamburg – Berlin (Flixbus)](/en/concepts/fernbus-hamburg-berlin.html)：The long-distance coach connection Hamburg – Berlin is one of the busiest German coach trunk routes and is operated by Flixbus in around three to four hours.
- [Berlin Bus Network (BVG)](/en/concepts/busnetz-berlin.html)：The Berliner Verkehrsbetriebe (BVG) operate one of the largest urban bus networks in Germany with around 150 day lines and 45 night lines, divided into MetroBus, ExpressBus and NachtBus.
- [Frankfurt am Main Bus Network (VGF/Stadtwerke)](/en/concepts/busnetz-frankfurt.html)：The Frankfurt city bus network consists of MetroBus lines (M), city bus lines (two-digit numbers) and ExpressBus lines (X) within the RMV fare system; since 2014 the bus operations have been run by In-der-City-Bus GmbH (ICB), part of the Stadtwerke group.
- [Cologne Bus Network (KVB)](/en/concepts/busnetz-koeln.html)：The Kölner Verkehrs-Betriebe (KVB) operate around 60 bus lines on a route network of approx. 735 km, whose city lines carry the numbers 1xx and complement the light rail network.
- [Munich Bus Network (MVG)](/en/concepts/busnetz-muenchen.html)：The Münchner Verkehrsgesellschaft (MVG) operates around 80 bus lines with a route network of approx. 546 km in Munich, divided into MetroBus, StadtBus, ExpressBus and night bus.
- [Hamburg Bus Network (Hochbahn)](/en/concepts/busnetz-hamburg.html)：The Hamburger Hochbahn AG operates around 115–117 bus lines in Hamburg within the hvv, divided into MetroBus, SchnellBus, EilBus and night bus, complemented by city and regional buses of other operators.
- [ICE 41 (Ruhr area – Munich)](/en/concepts/ice-41.html)：ICE line 41 runs hourly from Essen via Cologne, Frankfurt am Main, Würzburg and Nuremberg to Munich.
- [ICE 43 (Hamburg – Basel)](/en/concepts/ice-43.html)：ICE line 43 runs two-hourly from Hamburg-Altona via Bremen, the Ruhr area, Cologne, Frankfurt Airport, Mannheim and Karlsruhe to Basel, with individual trains continuing to Zurich or Chur.
- [ICE 28 (Hamburg – Berlin – Munich)](/en/concepts/ice-28.html)：ICE line 28 runs two-hourly from Hamburg-Altona via Berlin, Leipzig and Erfurt to Munich and, together with line 18, forms an hourly service between Hamburg and Nuremberg.
- [ICE 29 (Berlin – Munich)](/en/concepts/ice-29.html)：Since the timetable change in December 2025, ICE line 29 has run hourly as a Sprinter service between Berlin, Halle, Erfurt, Nuremberg and Munich with a journey time of around four hours.
- [ICE 42 (Hamburg – Munich)](/en/concepts/ice-42.html)：ICE line 42 runs two-hourly from Hamburg-Altona via Bremen, the Ruhr area, Cologne, Frankfurt Airport, Mannheim and Stuttgart to Munich.
- [ICE 25 (Hamburg – Munich)](/en/concepts/ice-25.html)：ICE line 25 runs hourly from Hamburg via Hanover, Kassel-Wilhelmshöhe, Fulda, Würzburg and Nuremberg to Munich and since 2026 has been operated largely with ICE 4 trains.
- [ICE 10 (Berlin – Cologne)](/en/concepts/ice-10.html)：ICE line 10 connects Berlin hourly via Hanover, Bielefeld and the Ruhr area with Cologne; together with line 19 this produces an hourly service between Berlin and Cologne.
- [ICE 11 (Berlin – Munich)](/en/concepts/ice-11.html)：ICE line 11 runs two-hourly from Berlin via Leipzig, Erfurt, Fulda, Frankfurt am Main, Mannheim and Stuttgart to Munich.
- [ICE 4 (Hamburg – Frankfurt)](/en/concepts/ice-4.html)：ICE line 4 is a Sprinter service of DB Fernverkehr AG connecting Hamburg-Altona with Frankfurt am Main four times daily via Hamburg and Hanover.
- [U3 (Nuremberg U-Bahn)](/en/concepts/ubahn-nuernberg-u3.html)：The U3 is the youngest line of the Nuremberg U-Bahn at 9.2 km with 14 stations; it opened on 14 June 2008 as Germany's first fully automatic U-Bahn and runs from Nordwestring to Großreuth bei Schweinau.
- [U7 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u7.html)：The U7 is a peak-hour reinforcement line of the Munich U-Bahn established in 2011, which runs on weekdays during peak hours; its regular route comprises 19 stations from Olympia-Einkaufszentrum to Neuperlach Zentrum; currently (since October 2023) it is operated shortened between Olympia-Einkaufszentrum and Sendlinger Tor due to a shortage of vehicles.
- [U1 (Nuremberg U-Bahn)](/en/concepts/ubahn-nuernberg-u1.html)：The U1 is the oldest and, at 18.5 km with 27 stations, the longest line of the Nuremberg U-Bahn; it opened on 1 March 1972 and runs from Langwasser Süd to Fürth Hardhöhe.
- [U5 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u5.html)：The U5 of the Munich U-Bahn was opened in 1984, is 15.4 km long, serves 18 stations and runs from Laimer Platz to Neuperlach Süd.
- [U1 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u1.html)：The U1 is a line of the Munich U-Bahn that was established in 1980, is 12.2 km long and runs over 15 stations from Olympia-Einkaufszentrum in the north to Mangfallplatz in the south of Munich.
- [U3 (Munich U-Bahn)](/en/concepts/ubahn-muenchen-u3.html)：The U3 is the Olympic line of the Munich U-Bahn; its first section was opened in 1972, it is now 21.2 km long, serves 25 stations and runs from Moosach to Fürstenried West.
- [U8 (Berlin U-Bahn)](/en/concepts/ubahn-berlin-u8.html)：The U8 is an 18.0 km long line of the Berlin U-Bahn with 24 stations, opened on 17 July 1927, connecting Wittenau in Reinickendorf with Hermannstraße in Neukölln in a north–south direction via Gesundbrunnen and Alexanderplatz.

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