Keiō Line
{{Short description|Commuter railway line in Tokyo, Japan}}
{{Distinguish|text=the Keiyō Line}}
{{Redirect|Keio Line|the Richard Pinhas and Merzbow album|Keio Line (album)}}
{{Multiple issues|
{{More citations needed|date=July 2022}}
{{Unreliable sources|date=July 2022}}
}}
{{Use dmy dates|date=August 2015}}
{{Infobox rail line
| name = Keiō Line
| native_name = 京王線
| native_name_lang = ja
| color = dd0077
| logo = Number prefix Keio-line.svg
| logo_width = 50
| image = Keio-Series9000-9741.jpg
| image_width = 300px
| image_alt =
| caption = A Keio 9000 series EMU on the Keiō Line in August 2023
| type = Commuter rail
| system =
| status =
| locale = Tokyo
| start = {{STN|Shinjuku|x}}
| end = {{STN|Keiō-Hachiōji|x}}
| stations = 32
| routes =
| daily_ridership = 1,349,238 (daily, 2010)[http://www.train-media.net/report/1110/keio.pdf Keio ridership in 2010] Train Media (sourced from Keio) Retrieved May 28, 2012.
| open = {{start date and age|1913|04|15|df=y}}
| lastextension = {{start date and age|1925|03|24|df=y}}
| close =
| owner = Keiō Corporation
| operator =
| character =
| depot =
| stock = Keio 5000 series
Keio 9000 series
Keio 7000 series
Keio 8000 series
| linelength = {{cvt|37.9|km|mi|abbr=on}}
| tracklength =
| tracks =
| gauge = {{RailGauge|1372mm|lk=on}}
| old_gauge =
| minradius = {{cvt|110|m|ft}}
| maxincline = 3.5% (Between {{STN|Hatagaya|x}} and {{STN|Sasazuka|x}})
| routenumber =
| trainprotection = Keio ATC
| electrification = {{1,500 V DC}} (overhead line)
| speed = {{cvt|110|km/h|mph|round=5|abbr=on}}
| elevation =
| website = {{URL|http://www.keio.co.jp}}
| map = {{Keiō Line}}
| map_state = collapsed
}}
The {{nihongo|Keiō Line|京王線|Keiō-sen}} is a {{convert|37.9|km|mi|sp=us|adj=on}} railway line in western Tokyo, Japan, owned by the private railway operator Keiō Corporation. It connects Shinjuku, Tokyo, with the suburban city of Hachiōji. The Keiō Line is part of a network with interchanges and through running to other lines of Keiō Corporation: the Keiō New Line, Keiō Sagamihara Line, the Keiō Keibajō Line, the Keiō Dōbutsuen Line, the Keiō Takao Line, and the {{RailGauge|1067mm}} gauge Keiō Inokashira Line.
Services
Six different types of limited-stop services are operated on the Keiō Line, along with local trains. Destinations are from Shinjuku unless otherwise indicated. English abbreviations are tentative for this article.
;{{Colorbox|DarkGray}} {{Nihongo|Local|各駅停車|kakueki teisha}}
: Also known as {{Nihongo||各停|kakutei}} for short. Until 2001 it was called {{Nihongo||普通|futsū}}.
;{{Colorbox|Blue}} {{Nihongo|Rapid|快速|kaisoku}} (R)
: Most services for Hashimoto and Keiō-Tama-Center on the Sagamihara Line, and Takaosanguchi on the Takao Line
;{{Colorbox|Yellow}} {{Nihongo|Semi Express|区間急行|kukan kyūkō|}} (SeE)
: Most bound for on the Sagamihara Line. Until 2013, these were weekday-only services called {{Nihongo|"Commuter Rapid"|通勤快速|tsūkin kaisoku}}.
;{{Colorbox|LightSeaGreen}} {{Nihongo|Express|急行|kyūkō}} (E)
:Most services run from the Toei Shinjuku Line locally and used as the express on the Sagamihara Line via Chōfu in mornings and evenings; other services in mornings and evenings are bound for Keiō-Hachiōji, Takaosanguchi and Takahatafudō.During race days at Tokyo Racecourse, express services run through on the Keibajō Line to Fuchukeibajō-Shōmonmae; there is also direct express service through on the Dōbutsuen Line to Tama-Dōbutsukōen.
;{{Colorbox|DeepPink}} {{Nihongo|Special Express|特急|tokkyū}} (SpE)
: Most services bound for Keiō-Hachiōji and Takaosanguchi can make the run from Shinjuku in 37 minutes and 39 minutes respectively.
;{{Colorbox|#231714}} Mt. TAKAO (MT)
: Reserved-seat supplementary-fare services between Shinjuku and Takaosanguchi on the Takao Line. Services operate weekends and holidays with three round-trips. Trains to Takaosanguchi run nonstop after Meidaimae, while trains to Shinjuku make additional stops to receive passengers.
;{{Colorbox|#231714}} {{Nihongo|Keiō Liner|京王ライナー|Keiō rainā}} (KL)
: Reserved-seat supplementary-fare services between Shinjuku and either Keiō-Hachiōji or Hashimoto. Services operate seven days a week, with services to Shinjuku in the morning and from Shinjuku in the evening. Fewer trains operate on weekends and holidays. On trains from Shinjuku, reserved seat tickets are only required up to the first train stop after Meidaimae, after which the train's seats become unreserved.
Stations
- All stations are located in Tokyo.
- Local trains stop at all stations.
Legend:
● - all trains stop at this station
◇ - trains stop at this station during special events
▲ - Shinjuku-bound trains stop to pick up passengers
｜- all trains pass
R - Rapid; SeE - Semi Express; E - Express; SpE - Special Express; KL - Keiō Liner; MT - Mt.TAKAO
| class="wikitable" rules="all" |
| rowspan="2"|No.
! rowspan="2"|Station ! rowspan="2"|Japanese ! colspan="2"|Distance (km) !style="background:lightblue; width:1em;" rowspan="2"|R !style="background:yellow; width:1em;" rowspan="2"|SeE !style="background:lightgreen; width:1em;" rowspan="2"|E !style="background:pink; width:1em;" rowspan="2"|SpE !style="background:black;color:#c6406e; width:1em;" rowspan="2" |KL !style="background:black;color:#c6406e; width:1em;" rowspan="2" |MT !rowspan="2"|Transfers !rowspan="2"|Location |
|---|
| style="width:2.5em;"|Between Stations !style="width:2.5em;"|Total |
| 35px
|{{STN|Shinjuku|x}} |新宿 |style="text-align:center;" |
| style="text-align:right;"|0.0
|style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |{{Plainlist|
}} |
| colspan="13" style="text-align:center;" |{{STN|Hatsudai|x}} and {{STN|Hatagaya|x}} stations are only accessible via the Keiō New Line. |
| 35px
|{{STN|Sasazuka|x}} |笹塚 |style="text-align:right;"|3.6 |style="text-align:right;"|3.6 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |{{KOLS|KO}} Keiō New Line (some trains through from Chōfu, Hashimoto, and Keiō-Hachiōji) |
| 35px
|{{STN|Daitabashi|x}} |代田橋 |style="text-align:right;"|0.8 |style="text-align:right;"|4.4 |style="background:lightblue; text-align:center;"|｜ |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |rowspan="5" style="white-space:nowrap;"|Setagaya |
| 35px
|{{STN|Meidaimae|x}} |明大前 |style="text-align:right;"|0.8 |style="text-align:right;"|5.2 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |{{KOLS|IN}} Keiō Inokashira Line |
| 35px
|{{STN|Shimo-Takaido|x}} |下高井戸 |style="text-align:right;"|0.9 |style="text-align:right;"|6.1 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | {{TQLS|SG}} Tokyu Setagaya Line |
| 35px
|{{STN|Sakurajōsui|x}} |桜上水 |style="text-align:right;"|0.9 |style="text-align:right;"|7.0 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Kami-Kitazawa|x}} |上北沢 |style="text-align:right;"|0.8 |style="text-align:right;"|7.8 |style="background:lightblue; text-align:center;"|｜ |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Hachimanyama|x}} |八幡山 |style="text-align:right;"|0.6 |style="text-align:right;"|8.4 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Roka-kōen|x}} |芦花公園 |style="text-align:right;"|0.7 |style="text-align:right;"|9.1 |style="background:lightblue; text-align:center;"|｜ |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |rowspan="2"|Setagaya |
| 35px
|{{STN|Chitose-Karasuyama|x}} |千歳烏山 |style="text-align:right;"|0.8 |style="text-align:right;"|9.9 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Sengawa|x}} |仙川 |style="text-align:right;"|1.6 |style="text-align:right;"|11.5 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |rowspan="8"|Chōfu |
| 35px
|{{STN|Tsutsujigaoka|x|Tokyo}} |つつじヶ丘 |style="text-align:right;"|1.0 |style="text-align:right;"|12.5 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Shibasaki|x}} |柴崎 |style="text-align:right;"|0.8 |style="text-align:right;"|13.3 |style="background:lightblue; text-align:center;"|｜ |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Kokuryō|x}} |国領 |style="text-align:right;"|0.9 |style="text-align:right;"|14.2 |style="background:lightblue; text-align:center;"|｜ |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Fuda|x}} |布田 |style="text-align:right;"|0.7 |style="text-align:right;"|14.9 |style="background:lightblue; text-align:center;"|◇ |style="background:yellow; text-align:center;"|◇ |style="background:lightgreen; text-align:center;"|◇ |style="background:pink; text-align:center;"|◇ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Chōfu|x|Tokyo}} |調布 |style="text-align:right;"|0.6 |style="text-align:right;"|15.5 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |{{KOLS|KO}} Keiō Sagamihara Line (some trains through from Shinjuku) |
| 35px
|{{STN|Nishi-Chōfu|x}} |西調布 |style="text-align:right;"|1.5 |style="text-align:right;"|17.0 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Tobitakyū|x}} |飛田給 |style="text-align:right;"|0.7 |style="text-align:right;"|17.7 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|◇ |style="background:lightgreen; text-align:center;"|◇ |style="background:pink; text-align:center;"|◇ |style="background:black;color:#c6406e;text-align:center;"|◇ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Musashinodai|x}} |武蔵野台 |style="text-align:right;"|1.1 |style="text-align:right;"|18.8 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |18px Seibu Tamagawa Line ({{STN|Shiraitodai|x}} or {{STN|Tama|x}}) |rowspan="6"|Fuchū |
| 35px
|{{STN|Tama-Reien|x}} |多磨霊園 |style="text-align:right;"|0.8 |style="text-align:right;"|19.6 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|｜ |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Higashi-Fuchū|x}} |東府中 |style="text-align:right;"|0.8 |style="text-align:right;"|20.4 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|◇ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |{{KOLS|KO}} Keiō Keibajō Line (some trains through from Shinjuku) |
| 35px
|{{STN|Fuchū|x|Tokyo}} |府中 |style="text-align:right;"|1.5 |style="text-align:right;"|21.9 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|▲ | |
| 35px
|{{STN|Bubaigawara|x}} |分倍河原 |style="text-align:right;"|1.2 |style="text-align:right;"|23.1 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|▲ |{{JRLS|JN}} Nambu Line |
| 35px
|{{STN|Nakagawara|x|Tokyo}} |中河原 |style="text-align:right;"|1.6 |style="text-align:right;"|24.7 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Seiseki-Sakuragaoka|x}} |聖蹟桜ヶ丘 |style="text-align:right;"|1.6 |style="text-align:right;"|26.3 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|▲ | |Tama |
| 35px
|{{STN|Mogusaen|x}} |百草園 |style="text-align:right;"|1.7 |style="text-align:right;"|28.0 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|◇ |style="background:pink; text-align:center;"|◇ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |rowspan="4"|Hino |
| 35px
|{{STN|Takahatafudō|x}} |高幡不動 |style="text-align:right;"|1.7 |style="text-align:right;"|29.7 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|▲ |{{KOLS|KO}} Keiō Dōbutsuen Line (some trains through from Shinjuku) |
| 35px
|{{STN|Minamidaira|x}} |南平 |style="text-align:right;"|2.4 |style="text-align:right;"|32.1 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Hirayamajōshi-kōen|x}} |平山城址公園 |style="text-align:right;"|1.3 |style="text-align:right;"|33.4 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |
| 35px
|{{STN|Naganuma|x|Tokyo}} |長沼 |style="text-align:right;"|1.5 |style="text-align:right;"|34.9 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|｜ |style="background:pink; text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ |style="background:black;color:#c6406e;text-align:center;"|｜ | |rowspan="3"|Hachiōji |
| 35px
|{{STN|Kitano|x|Tokyo}} |北野 |style="text-align:right;"|1.2 |style="text-align:right;"|36.1 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|▲ |{{KOLS|KO}} Keiō Takao Line (some trains through from Shinjuku) |
| 35px
|{{STN|Keiō-Hachiōji|x}} |京王八王子 |style="text-align:right;"|1.8 |style="text-align:right;"|37.9 |style="background:lightblue; text-align:center;"|● |style="background:yellow; text-align:center;"|● |style="background:lightgreen; text-align:center;"|● |style="background:pink; text-align:center;"|● |style="background:black;color:#c6406e;text-align:center;"|● |style="background:white;text-align:center;"| |{{Plainlist|
}} |
https://www.keio.co.jp/train/map/pdf/rosenzu.pdf (This reference represents the"Stations"section.)
Events at stations marked with a "◇" symbol for which trains make special seasonal stops:
- Fuda Station: Chofu City Fireworks Festival
- Tobitakyū Station: Soccer games, concerts, etc. at Ajinomoto Stadium
- Higashi-Fuchū Station: Events (including the Arima Kinen) at Tokyo Racecourse; transfer to the Keiō Keibajō Line
- Nakagawara Station: Seiseki-Tamagawa Fireworks Festival
- Mogusaen Station: Saturdays and holidays during the Plum Blossom Festival
History
The Shinjuku to Chōfu section opened in 1913 as a {{Track gauge|1372mm}} gauge interurban line electrified at 600 V DC, and was progressively extended in both directions so that the line connected Shinjuku and Fuchu in 1916.{{Cite book |last=京王電鉄株式会社 |title=『京王ハンドブック2016』 |publisher=京王電鉄広報部 |year=2016 |language=Japanese}} The Sasazuka to Fuchu section was double-tracked between 1920 and 1923.
The extension to Higashi-Hachiōji (now Keiō-Hachiōji) was completed by a related company, Gyokunan Electric Railway, in 1925. This electrified line was built to the Japanese standard narrow gauge of {{RailGauge|1067mm}} in an attempt to seek a government subsidy, and so trains from each railway could not operate on the other's tracks. The subsidy application was rejected on the basis that the line competed with the Japanese Government Railways (JGR) Chūō Main Line, and so the Gyokunan Electric Railway merged with the Keiō Electric Railway Co., the line was regauged to 1,372 mm, and operation of trains from Shinjuku to Higashi-Hachiōji commenced in 1928.{{cn|date=August 2015}}
The Fuchu to Nakagawara and Seiseki-Sakuragaoka to Kitano sections were double-tracked in 1929. In 1963, the original terminus at Shinjuku and the streetrunning section on what is today Japan National Route 20 towards Sasazuka Station was moved to an underground alignment.{{Cite web |title=【懐かしの私鉄写真】都内に存在した京王と東急の併用軌道 |url=https://trafficnews.jp/post/102355 |access-date=2022-03-05 |website=乗りものニュース |language=ja}} Additionally the overhead line voltage was increased to 1,500 V DC. The Nakagawara to Seiseki-Sakuragaoka section was double-tracked in 1964.{{cn|date=August 2015}} The Kitano to Keiō-Hachiōji section was double-tracked in 1970, and the relocation of the terminal station underground was completed in 1989.{{cn|date=August 2015}}
From the start of the revised timetable introduced on 25 September 2015, Semi Special Express services were also to stop at Sasazuka and Chitose-Karasuyama stations, and Semi Express services will also stop at Sengawa Station.{{cite web |url= http://www.keio.co.jp/news/update/news_release/news_release2015/nr150826_timetable20150925.pdf|script-title=ja: 9月25日（金）に京王線・井の頭線のダイヤ改正を実施します |trans-title=Revised timetable to be introduced on Keio Line and Inokashira Line from Friday 25 September|work= News release|publisher= Keio Corporation|location= Japan|language= ja|access-date= 29 August 2015}}
The flat junction west of Chofu station between the Keiō Line and Keiō Sagamihara Line has been a source of congestion in the entire Keiō network for years. Keiō has reconfigured the station and put the entire junction and Chofu Station underground to improve operations and separate traffic between the two lines.{{Cite web |title=April 2012：特集「都市と鉄道の昨日，今日，そして明日」{{!}} KAJIMAダイジェスト {{!}} 鹿島建設株式会社 |url=https://www.kajima.co.jp/news/digest/apr_2012/feature/renzoku/index-j.html |access-date=2022-03-07 |website=www.kajima.co.jp}} The underground section of the Keiō around Chofu Station to Kokuryo was completed in 2012.{{Cite web |last= |title=[No.13]【参考】調布駅付近連続立体交差事業③ |trans-title=[No.13] [Reference] Continuous Crossing Project near Chofu Station ③ |url=https://mtkarasu.exblog.jp/23708268/ |url-status=live |archive-url=https://web.archive.org/web/20220307091128/https://mtkarasu.exblog.jp/23708268/ |archive-date=7 March 2022 |access-date=7 March 2022 |website=千歳烏山 再開発 ～京王線高架化事業と沿線変化の様子～ |language=ja}}
= Level crossings and congestion =
The Keiō Line is infamous for its level crossings, of which the 25 lying on the {{convert|7.2|km|mi|sp=us|adj=on}} section between Sasazuka and Sengawa stations are classified by the Tokyo Metropolitan Government Construction Bureau as akazu no fumikiri as they are closed to road traffic for over 40 minutes in an hour.{{Cite news|url=http://toyokeizai.net/articles/-/121447|title=京王｢開かずの踏切｣日本最多を返上できるか {{!}} 通勤電車|date=2016-06-07|work=東洋経済オンライン|access-date=2017-10-19|language=ja-JP}} Congestion on the Keiō Line is also a concern, with trains often running as close as 1 minute apart during rush hours.{{Cite news |date=2016-06-07 |title=京王｢開かずの踏切｣日本最多を返上できるか {{!}} 通勤電車 |language=ja-JP |work=東洋経済オンライン |url=http://toyokeizai.net/articles/-/121447?page=2 |access-date=2017-10-19}} In 2016, Keiō and the Tokyo Metropolitan Government Construction Bureau proposed that the section between Sasazuka and Chofu be grade separated and widened to quadruple-track to reduce the effects caused by the present bunching on the existing at-grade double-tracked line.{{Cite news |date=7 June 2016 |title=京王｢開かずの踏切｣日本最多を返上できるか {{!}} 通勤電車 |language=ja-JP |trans-title=Keio "Unopened crossing" Can you return the most in Japan? {{!}} Commuter train |work=東洋経済オンライン |url=http://toyokeizai.net/articles/-/121447?page=3 |access-date=15 July 2022 |archive-url=https://web.archive.org/web/20210201012055/https://toyokeizai.net/articles/-/121447?page=3 |archive-date=1 February 2021}} Later the proposal evolved to call for two separate sets of tracks each dedicated to express and local services, similar to the Keiō and Keiō New lines between Sasazuka and Shinjuku Stations.
With the completion of the undergrounding between Chofu and Kokuryo Stations in 2012, construction has started on elevating the line between Sasazuka and Sengawa Stations.{{Cite web |last=Hoshikawa |first=Koichi |date=9 February 2022 |title=半世紀にしてようやく！京王線の連続立体交差事業に見る「踏切問題」を解決する難しさ |trans-title=Finally in half a century! Difficulty in solving the "railroad crossing problem" seen in the Keio Line continuous crossing project |url=https://getnavi.jp/vehicles/469953/ |archive-url=https://web.archive.org/web/20220307072536/https://getnavi.jp/vehicles/469953/ |archive-date=7 March 2022 |access-date=15 July 2022 |website=GetNavi web ゲットナビ |language=ja}}{{Cite web |date=30 May 2019 |title=京王線（笹塚駅～仙川駅間）連続立体交差事業により高架化する新しい駅舎の外観デザインを決定しました！ |trans-title=We have decided on the exterior design of a new station building that will be elevated by the Keio Line (between Sasazuka Station and Sengawa Station) continuous crossing project! |url=https://www.keio.co.jp/news/update/news_release/news_release2019/nr190530_eki.pdf |archive-url=https://web.archive.org/web/20220307072523/https://www.keio.co.jp/news/update/news_release/news_release2019/nr190530_eki.pdf |archive-date=7 March 2022 |language=ja}} The government has planned the grade-separating project for this section of line to be completed by 2022, but this date has been delayed due to land acquisition issues.{{Cite web |date=30 August 2021 |title=本格的に行われている「京王電鉄京王線（笹塚駅～仙川駅間）連続立体交差事業」 約７.２kmの区間を高架化、７駅が高架駅に！ |trans-title="Keio Electric Railway Keio Line (Sasazuka Station-Sengawa Station) Continuous Crossing Project" which is being carried out in earnest. The section of about 7.2km has been elevated, and 7 stations have become elevated stations! |url=http://building-pc.cocolog-nifty.com/helicopter/2021/08/post-60c20a.html |archive-url=https://web.archive.org/web/20220307072520/http://building-pc.cocolog-nifty.com/helicopter/2021/08/post-60c20a.html |archive-date=7 March 2022 |access-date=2022-03-07 |website=東京・大阪 都心上空ヘリコプター遊覧飛行 |language=ja}}
Keiō has proposed a later phase for the whole corridor, which involves building another pair of underground tracks for express services between Sasazuka and Chofu, completing the quadruple-tracking of the corridor until the bifurcation of the Keiō New Line. The design of Chofu Station after the completion of the undergrounding works in 2012 allows for the inclusion of another set of underground express tracks in the future.
References
This article incorporates material from the corresponding article in the Japanese Wikipedia.
{{Reflist}}
External links
{{Commons category|Keiō Line}}
- [http://www.keio.co.jp/ Keiō Corporation website] {{in lang|ja}}
- [http://www.keio.co.jp/english/index.html Keiō Corporation website] {{in lang|en}}
- [https://www.youtube.com/@keiopr_official Keiō Youtube Channel] {{in lang|ja}}
{{Keio transit}}
{{Tokyo transit}}
{{DEFAULTSORT:Keio Line}}
Category:Lines of Keio Corporation
Category:Railway lines in Tokyo
Category:4 ft 6 in gauge railways in Japan