Editing Toei Asakusa Line (section)

{{Short description|Subway line in Tokyo, Japan}}
{{Refimprove|date=March 2010}}
{{Infobox rail line
| box_width                       = 
| name                            = Toei Asakusa Line
| linenumber                      = 1
| other_name                      = A
| native_name                     = 浅草線
| native_name_lang                = ja
| color                           = {{rcr|Toei Subway|a}}
| mapcolor = {{rcb|Toei Subway|A|box}} Rose (#{{rcr|Toei Subway|A}})
| logo                            = Toei Asakusa line symbol.svg
| logo_width                      = 50px
| image                           = Asakusa-Line Series5500-5503.jpg
| image_width                     = 300px
| caption                         = A Toei Asakusa Line 5500 series train
| type                            = Heavy rail
| system                          = [[Tokyo subway]]
| status                          = 
| locale                          = Tokyo
| start                           = {{STN|Nishi-magome|x}}
| end                             = {{STN|Oshiage|x}}
| stations                        = 20
| routes                          = 
| daily_ridership                 = 718,855 (FY2016)<ref name="ridership">{{cite web |url=http://www.kotsu.metro.tokyo.jp/information/service/subway.html |script-title=ja:東京都交通局ホーム – 経営情報 – 交通局の概要 – 都営地下鉄 |publisher=東京都交通局 [Tokyo Metropolitan Bureau of Transportation] |language=ja |trans-title=Tokyo Metropolitan Bureau of Transportation Home – Management Information – Overview of the Department of Transportation – Toei Subway |date=April 1, 2015 |access-date=2016-01-17}}</ref>
| open                            = {{start date and age|1960|12|04|df=y}}
| close                           = 
| owner                           = {{ric|Toei Subway|name=y}}
| operator                        = Toei Subway
| character                       = 
| depot                           = Magome
| stock                           = 
| linelength                      = {{cvt|18.3|km|mi|abbr=on}}
| tracklength                     = 
| tracks                          = 
| gauge                           = {{RailGauge|sg|allk=on}}
| electrification                 = {{1,500 V DC}} ([[overhead catenary]])
| maxincline                      = 3.5%
| minradius                       = {{cvt|161|m}}
| trainprotection                 = [[Automatic train stop|C-ATS]]
| signalling                      = Automatic closed block
| speed                           = {{cvt|70|km/h|mph|abbr=on}}
| elevation                       = 
| map_state                       = collapsed
| map                             = [[File:Tokyo subway map black fixed grey asakusa.PNG|240px]]
{{Toei 1 RDT|inline=1}}}}

The {{Nihongo|'''Toei Asakusa Line'''|都営地下鉄浅草線|Toei Chikatetsu Asakusa-sen}} is a subway line in [[Tokyo]], Japan, operated by the municipal subway operator [[Toei Subway]]. The line runs between {{STN|Nishi-magome|x}} in [[Ōta, Tokyo|Ōta]] and {{STN|Oshiage|x}} in [[Sumida, Tokyo|Sumida]]. The line is named after the [[Asakusa]] district, a cultural center of Tokyo, under which it passes.

The Asakusa Line was the first subway line in Japan to offer [[through train|through services]] with a [[private railway]]. Today, it has more through services to other lines than any other subway line in Tokyo. [[Keikyu]] operates through trains on the [[Keikyu Main Line]] to {{STN|Misakiguchi|x}} and the [[Keikyu Airport Line]] to {{STN|Haneda Airport Domestic Terminal|x}}. The [[Keisei Electric Railway]] operates through trains on the [[Keisei Oshiage Line]] to {{STN|Inba-Nihon-Idai|x}} and the [[Keisei Main Line]] to {{STN|Narita Airport Terminal 1|x}}, and the [[Shibayama Railway]] runs trains via the Keisei Main Line and the [[Shibayama Railway Line]] to {{STN|Shibayama-Chiyoda|x}}. Via its through services with Keisei and Keikyu, the Asakusa line is the only train line that offers a direct connection between Tokyo's two main airports.

The Asakusa Line is often split into two routes: Oshiage–Sengakuji and Sengakuji–Nishi-magome; only some trains make all station stops on the line, as many trains travel on the Keikyu Main Line south of Sengakuji.

On maps and signboards, the line is shown in the color rose. Stations carry the letter "A" followed by a two-digit number inside a more reddish vermilion circle.

In fiscal year 2023, the Asakusa Line was Toei's most profitable line, earning 8.67 billion yen in surplus. It served 683,003 passengers on average per day, the third highest in the Toei network.<ref>{{Cite web |title=令和4年度 地下鉄路線別収支状況 |trans-title=FY2023 Revenue and expenditure by subway line |url=https://www.kotsu.metro.tokyo.jp/about/information/closing/pdf/r05_closing04.pdf |url-status=live |archive-url=https://web.archive.org/web/20250528095332/https://www.kotsu.metro.tokyo.jp/about/information/closing/pdf/r05_closing04.pdf |archive-date=28 May 2025 |access-date=28 May 2025 |website=Toei Transportation Online |language=ja |format=PDF}}</ref>