year, U6 was extended on 14 October 2006 from Garching-Hochbrück to Garching-Forschungszentrum via Garching. This is a similar concept to the fictional U1 extension, where it had needed a new series of trains. Timeline Further extension plans U1 (south): extension to Harlaching Hospital via Laurinplatz Although the plans for this extension were quite advanced, low passenger forecasts have led to its abandonment in favour of a tram or light rail from Schwanseestraße. But in 2015 and 2016, it was also announced that it will be extended to Solln. U1 (north): extension to Feldmoching With this extension, the U1 line would terminate at S-Bahn and U2 subway stations in Feldmoching. The subway station, Olympia-Einkaufszentrum, would be renamed as the Northern Cross. The extension is to connect with U2 line at current Hasenbergl subway station then continue to their terminus in Feldmoching. This plan was abandoned. U2 (north): extension to Karlsfeld The city council of Bündnis 90 / Die Grünen and the CSU faction in the town council of Karlsfeld proposed the above-ground extension of the U2 from Feldmoching to Karlsfeld as a measure to relieve the municipality of the heavy car traffic. Moreover, this should provide a greater incentive for the employees of the large companies MAN and MTU to use public transport for their work. After initial investigations had shown a low cost-benefit ratio for this route, it was not cost-effective and was abandoned. U3 (west): extension to Untermenzing This extension is planned after the U3 has been extended to Moosach, and it will go via Waldhornstraße. U4 (east): extension to Englschalking Bahnhof This extension is considered in the third medium-term planning (Mittelfristprogramm) along with the plan of moving a portion of S8 line from surface to underground between Unterföhring and Leuchtenbergring stations. Whether the extension would be approved and when will it be built is not clear. The stations do include Cosimapark, Fideliopark, and Englschalking, all of which are in Bogenhausen. U5 (west): extension to Pasing Bahnhof The Laimer Platz-Pasing extension has been approved on 14 July 2015 as to relieve the overburdened tram and bus routes serving the area between Laimer Platz and Pasing neighbourhoods. In case of S-Bahn disruption between Pasing Bahnhof and Ostbahnhof via Hauptbahnhof, the U5 can supplement the connection between both stations. The construction is to commence in 2021 at cost of 547 million euros and be completed in 2028-2029. Two new subway stations