Ōimachi Line

All-stations "Local" services are classified as blue and green. The latter runs on the express track between Futako-Tamagawa and Mizonokuchi and does not stop at Futako-Shinchi or Takatsu. Limited-stop "Express" services are also provided. On weekends, two seven-car express trains per days are operated to/from and on the Tokyu Den-en-toshi Line. Also, a few trains are operated through down to in the late evenings. A few express trains during the holidays also serve from in the mornings, down in the evenings. ==Rolling stock==

Local services • 6020 series five-car EMUs (from July 2025) • 9000 series five-car EMUs • 9020 series five-car EMUs File:Tokyu-Oimachi-Line Series9000-9009.jpg|A 9000 series EMU in December 2021 File:Tokyu-Oimachi-Line Series9020-9021.jpg|A 9020 series EMU in December 2021 File:Tokyu 6020 Series (Oimachi Line 6153).jpg|A 5-car 6020 series EMU in August 2025 Express services • 6000 series seven-car EMUs (since March 2008, originally delivered as six-car sets) • 6020 series seven-car EMUs (from March 2018) File:Tokyu 6103 (7cars) Express 20180319.jpg|A 6000 series EMU in March 2018 File:Tokyu 6020 series Ōimachi Line 20181228.jpg|A 6020 series EMU in December 2018 Former rolling stock • 8000 series • 8090 series • 8590 series • 8500 series ==History==

• 6 July 1927: The section between and was opened by the . • 1 November 1929: The section between and was opened by the Meguro-Kamata Electric Railway. • 25 December 1929: The section between and was opened by Meguro-Kamata Electric Railway. • 29 June 1938: The Meguro-Kamata Railway was absorbed into the . • 15 January 1958: Electric supply was raised to 1,500 V DC. • 11 October 1963: The line was renamed the Den-en-toshi Line, together with the section south of Futako-tamagawa. • 16 November 1977: Through running started between Shibuya and Nagatsuta. • 12 August 1979: The line was renamed the Ōimachi Line and separated from the Den-en-toshi Line south of Futako-tamagawa. • 23 February 2008: ATS was replaced by ATC. • 28 March 2008: Express services started. • 11 July 2009: The Ōimachi Line was extended to from . Express services on the line were lengthened from six to seven cars in late fiscal 2017, and the platforms at , , and were lengthened to handle the longer trains. Since December 2018, "Q Seat" reserved seating has been implemented on some express services that run between Ōimachi and Nagatsuta stations. ==References==