All services operate in the weekday morning for Shinjuku from Karakida on the Odakyu Tama Line.
Commuter Semi Express (通勤準急, tsūkin-junkyū) (CS)
All services operate from Hon-Atsugi to the Chiyoda Line during weekday mornings.
Stations
Notes:
See the Romancecar article for information on Odakyu Romancecar limited express services.
Local trains stop at every station.
Legend:
● - all trains stop at this station; ■ - some trains stop at this station;｜- all trains pass; ○ - On Weekdays, Outbound for Isehara Evening Rush Hour only.
The Odawara Express Railway Co. opened the entire line on 1 April 1927 in order to allow for the Emperor's family to travel on the line, though as duplication works were not completed until October that year, there was initial timetable and signalling issues.[3] Although primarily intended as a passenger line, gravel began to be hauled in 1930.
In 1942, the company was forcibly merged by the government with Tokyu Corporation and the line was named the Tokyu Odawara Line.[3] Tokyu was broken up in 1948 and the line was transferred to the newly founded Odakyu Electric Railway Co.[3]
Increasing traffic volume since the 1970s led to plans being formed in 1985 for a track upgrading project on the Odawara Line, though land acquisition issues stalled major track expansion work until construction began in 2013;[4] the project is being carried out between Yoyogi-Uehara and Mukōgaoka-Yūen, quadrupling the Odawara Line trackage and stacking the tracks underground, allowing for increased express services.[5] Originally a viaduct was planned but this was changed to underground tracks, and work on the tunnel between Setagaya-Daita and Higashi-Kitazawa was completed in 2018.[6]
^ abcdef"会社小史・略年表" [Company brief history / abbreviation chronology]. Odakyu.co.jp (in Japanese). Archived from the original on 30 April 2021. Retrieved 16 July 2022.
^Japan Railway Construction, Transport and Technology Agency. "About JRTT: Urban Railways"(PDF). jrtt.co.jp. Archived from the original(PDF) on 2 March 2014. Retrieved 16 July 2022.
^"小田急、代々木上原駅～梅ヶ丘駅間の複々線化で工事期間を2018年度まで延長" [Odakyu, extend the construction period until fiscal 2018 by a quadruple track between station and umegaoka station Yoyogi-Uehara]. Automotive Media Response. March 14, 2013. Archived from the original on 24 January 2022. Retrieved February 25, 2014.
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