| Den-en-Toshi Line | |
| Native Name: | 田園都市線 |
| Native Name Lang: | ja |
| Color: | 20a288 |
| Type: | Commuter rail |
| Locale: | Kantō Region |
| Stations: | 27 |
| Daily Ridership: | 1,274,503 daily (2017)[1] |
| Owner: | Tokyu Corporation |
| Depot: | Nagatsuta |
| Electrification: | 1,500 V DC overhead catenary |
| Mapcolor: | Green (#) |
The is a major commuter line operated by the private railway operator Tokyu Corporation and connecting south-western suburbs of Tokyo and neighbouring Kanagawa Prefecture, with its western terminus of, to a major railway junction of western downtown Tokyo, . At Shibuya, nearly all the trains continue on the Tokyo Metro Hanzomon Line.
The line's color on maps and station guides is green, and stations carry the prefix "DT" followed by a number.[2]
On March 6, 1907, the opened the first section of an interurban line between Shibuya and what is now, using gauge.[3] The line was called the and is not to be confused with today's Tokyu Tamagawa Line (東急多摩川線). The branch from Sangen-Jaya Station opened on January 18, 1925.
In 1953, Tokyu Group president Keita Gotō unveiled a "new town" planning scheme called the South-Western Area Development Plan. He envisioned new railway line and freeway and large, clean houses for commuters working in Tokyo.[4] The railway line would become the Tama Den-En-Toshi Line and the expressway the Tōmei Expressway. The parts of the new line completely overlaps the Tamagawa Line and the project is known as the Shin-Tamagawa Line or "New Tamagawa Line" which runs in an underground alignment under the old interurban line. The Tamagawa Line was closed in 1969 in anticipation for the opening of the Shin-Tamagawa Line, with the remaining branch line of the Tamagawa Electric Railway split off into the present Tokyu Setagaya Line. The underground Shin-Tamagawa Line opened a few years later in 1977, completely replacing the closed interurban line. Upon opening it was treated as a separate line from the Ōimachi Line connecting to said line at Futako-Tamagawa.
In 2000, Tama Den-En-Toshi Line as depicted today was created by merging the Shin-Tamagawa Line and the section of the Ōimachi Line west of . Trains through servicing into the Tokyo Metro Hanzōmon Line was extended beyond into Isesaki Line and Nikkō Line of Tobu Railway on March 19, 2003.[4]
Tokyu has expanded the line to four tracks from Futako-Tamagawa to Mizonokuchi; most trains of the Ōimachi line run through this section to Mizonokuchi, with some local trains making the intermediate stops. This service began in June 2009, postponed from fiscal 2007. Ōimachi line trains, which are 5- or 7-car sets, will then run between and Mizonokuchi.[5]
Nearly all trains on the Den-en-toshi Line are operated through to/from the Tokyo Metro Hanzomon Line using Tokyu, Tokyo Metro, and Tobu Railway 10-car EMUs. Around half of them continue beyond, the terminus of the Hanzomon Line, to the Tobu Skytree Line (Kita-Koshigaya Station, Kita-Kasukabe Station and Tōbu-Dōbutsu-Kōen Station), Tobu Isesaki Line (Kuki Station), and Tōbu Nikkō Line (Minami-Kurihashi Station).[6] At rush hour, an inbound train arrives as frequently as every 2 minutes 10 seconds.
The following three types of service are operated on the line.[6]
On weekends, two seven-car express trains per days are operated to/from and . Also, a few trains are operated through to/from the Tōkyū Ōimachi Line to utilize forwardings to/from Saginuma depot, up to Ōimachi in the mornings, and down to in the late evenings. These formations are 7-car sets, unlike the 10-car trains normally used on the line. A few express trains during the holidays also serve from in the mornings, down in the evenings.
| No. | Name | Japanese | Distance (km) | L | SE | Ex | Transfers | Location | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ↑ Through-services to/from via the Tokyo Metro Hanzomon Line • Tobu Skytree Line and Tobu Isesaki Line↑↑ Through-services to/from via the Tokyo Metro Hanzomon Line, Tobu Skytree Line & Tōbu Nikkō Line ↑ | |||||||||||
| 渋谷 | 0.0 | O | O | O | Shibuya | Tokyo | |||||
| 池尻大橋 | 1.9 | O | O | Setagaya | |||||||
| 三軒茶屋 | 3.3 | O | O | O | Tōkyū Setagaya Line | ||||||
| 駒沢大学 | 4.8 | O | O | ||||||||
| 桜新町 | 6.3 | O | O | ||||||||
| 用賀 | 7.6 | O | O | ||||||||
| 二子玉川 | 9.4 | O | O | O | Tōkyū Ōimachi Line | ||||||
| 二子新地 | 10.1 | O | Takatsu-ku, Kawasaki | Kanagawa | |||||||
| 高津 | 10.7 | O | |||||||||
| 溝の口 | 11.4 | O | O | O | |||||||
| 梶が谷 | 12.2 | O | |||||||||
| 宮崎台 | 13.7 | O | Miyamae-ku, Kawasaki | ||||||||
| 宮前平 | 14.7 | O | |||||||||
| 鷺沼 | 15.7 | O | O | O | |||||||
| たまプラーザ | 17.1 | O | O | O | Aoba-ku, Yokohama | ||||||
| あざみ野 | 18.2 | O | O | O | 20px Yokohama Municipal Subway Blue Line | ||||||
| 江田 | 19.3 | O | |||||||||
| 市が尾 | 20.6 | O | |||||||||
| 藤が丘 | 22.1 | O | |||||||||
| 青葉台 | 23.1 | O | O | O | |||||||
| 田奈 | 24.5 | O | |||||||||
| 長津田 | 25.6 | O | O | O | Midori-ku, Yokohama | ||||||
| つくし野 | 26.8 | O | O | Machida | Tokyo | ||||||
| すずかけ台 | 28.0 | O | O | ||||||||
| 南町田グランベリーパーク | 29.2 | O | O | O | |||||||
| つきみ野 | 30.3 | O | O | Yamato | Kanagawa | ||||||
| 中央林間 | 31.5 | O | O | O | Odakyu Enoshima Line | ||||||