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Hokusō Line

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The Hokusō Line (北総線, Hokusō-sen) is a commuter rail line operated by the third-sector Hokusō Railway (controlled by the Keisei Electric Railway) in Japan. It runs between Keisei-Takasago Station in Katsushika, Tokyo and Imba Nihon-idai Station in Inzai, Chiba. It is part of the primary Keisei route between central Tokyo and Narita International Airport through the Narita Sky Access Line. It uses the ATS Type 1 system. The line's name is derived from its route through the former Shimōsa Province, which is also known as "Hokusō".

Hokusō Line
HS
A Hokusō Line 7300 series EMU in July 2021
Overview
Native name北総線
OwnerHokusō Railway (between Keisei-Takasago and Komuro; Category 1)
Chiba New Town Railway (between Komuro and Imba Nihon-idai; Category 3)
(both controlled by the Keisei Electric Railway)
LocaleTokyo and Chiba Prefecture
Termini
Stations15
Service
TypeCommuter rail
Operator(s)Hokusō Railway
Depot(s)Inba
History
OpenedMarch 9, 1979
Technical
Line length32.3 km (20.1 mi)
CharacterDouble track
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification1,500 V DC overhead catenary
Operating speed105 km/h (65 mph), upgrading to 130 km/h (81 mph) for Narita Rapid

Operations

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Most trains are all-station "Local" services, but some limited-stop "Rapid" express trains have operated in morning and evening hours.

Local (普通, Futsū) (L)
Stops at all stations, all day. Through to Keisei Main Line, Keisei Oshiage Line, Toei Asakusa Line, Keikyū Main Line, Keikyū Airport Line and Keikyū Kurihama Line.
Limited Express (特急, Tokkyū) (LE)
Runs only on weekdays.
Extra Liner (臨時ライナー, Rinji Liner) (EL)
Runs on weekday mornings only. This service is bound to Ueno Station.
Fare (adult/500 yen, child/250 yen)
Stop at five stations (Passengers can board at Imba Nihon-idai and Chiba New Town Chuo. Passengers can alight at Aoto, Nippori, and Keisei Ueno)
This service was introduced on October 1, 2020.

Discontinued service patterns

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Express (急行, Kyūkō) (Ex)
Ran only in the evening on weekdays, down from Keisei line.
Discontinued as of 2022[1]

Stations

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Legend:

● All trains stop
○ Access Express only
▲ Some Skyliner trains stop
△ Extra Liner can only be boarded
｜ All trains pass
↑ Extra Liner passes in one direction
No. Station Japanese L LE EL Sky Access Line Transfers Location
↑ Through-running via the KS Keisei Main Line and KS Keisei Oshiage Line to/from ↑

Nishi-Magome via the A Toei Asakusa Line

Yokohama via the A Toei Asakusa Line and KK Keikyū Main Line, and Misakiguchi via the KK Keikyū Kurihama Line

To/from Haneda Airport Terminal 1·2 and Terminal 3 via the A Toei Asakusa Line, KK Keikyū Main Line and KK Keikyū Airport Line

KS10 Keisei-Takasago 京成高砂 ● ● ↑ ○
Katsushika Tokyo
HS01 Shin-Shibamata 新柴又 ● | ↑ |  
HS02 Yagiri 矢切 ● | ↑ |   Matsudo Chiba
HS03 Kita-Kokubun 北国分 ● | ↑ |   Ichikawa
HS04 Akiyama 秋山 ● | ↑ |   Matsudo
HS05 Higashi-Matsudo 東松戸 ● ● ↑ ○
HS06 Matsuhidai 松飛台 ● | ↑ |   Ichikawa
HS07 Ōmachi 大町 ● | ↑ |   Ichikawa
HS08 Shin-Kamagaya 新鎌ヶ谷 ● ● ↑ ▲
Kamagaya
HS09 Nishi-Shiroi 西白井 ● ● ↑ |   Shiroi
HS10 Shiroi 白井 ● ● ↑ |  
HS11 Komuro 小室 ● ● ↑ |   Funabashi
HS12 Chiba New Town Chūō 千葉ニュータウン中央 ● ● △ ○   Inzai
HS13 Inzai-Makinohara 印西牧の原 ● ● ↑ |  
HS14 Imba Nihon-idai 印旛日本医大 ● ● △ ○ KS Narita Sky Access Line (Through service to/from Narita Airport Terminal 1)

Rolling stock

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Lineup of Hokuso Line rolling stock in August 2007

Hokuso Railway

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  •  
    Hokuso 7300 series

Chiba New Town Railway

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  •  
    Chiba New Town Railway 9100 series
  •  
    Chiba New Town Railway 9200 series
  •  
    Chiba New Town Railway 9800 series

Keisei Electric Railway

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Keikyu

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Toei Subway

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Former rolling stock

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Chiba New Town Railway

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Hokuso Railway

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  • 7000 series (from 1979 until 2007)
  • 7050 series (rebadged Keisei 3150 series cars leased from Keisei)
  • 7150 series (from 1991 until 1998, converted from former Keikyu 1000 series EMUs)
  • 7250 series (from 2003 until 2006, converted from former Keisei 3150 series EMUs)
  • Hokuso 7260 series (from 2006 until March 2015, converted from Keisei 3300 series EMUs)
  •  
    Chiba New Town Railway 9000 series in August 2007
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    7150 series in July 1995
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    7250 series in February 2006
  •  
    Hokuso 7260 series in August 2007

Shin-Keisei Electric Railway

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  • 800 series (also leased to Hokuso Railway)
  • 8800 series
  • 8900 series
  • Keisei 200 series

Keisei Electric Railway

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  • 3050 series (original) (until 1995)
  • 3100 series (until 1998)
  • 3150 series
  • 3200 series (until 2007)
  • 3300 series (unrefurbished sets)
  • 3500 series (unrefurbished sets)
  • 3600 series

Toei Subway

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Keikyu

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History

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The first section of the line, from Komuro to Shin-Kamagaya, opened in March 1979, including a temporary connection to the Shin-Keisei Line at Kita-Hatsutomi. As other tracks were connected, it changed its name to "Hokusō Kōdan Line" in April 1987. Over 17 years later, the railway properties of the HDC corporation transferred to Chiba New Town Railway (千葉ニュータウン鉄道, Chiba Nyūtaun Tetsudō), on July 1, 2004, and the whole line was renamed as the Hokusō Line.

Western section

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This section was planned as a railway access to Chiba New Town. Initially proposed by a committee of the then Ministry of Transport, the route was numbered "Line 1", as the northern extension of Tokyo Metropolitan Bureau of Transportation (Toei) Line 1 (present Asakusa Line) to Komuro area of Chiba New Town. In 1979 the first phase of this section between Kita-Hatsutomi and Komuro opened. The through-operation via Shin-Keisei Line to Matsudo began, on a temporary basis until the second phase of this section could connect the town directly to the Keisei and Asakusa Line network.

The second phase section to Keisei-Takasago on the Keisei Main Line opened in 1991, and through-operation began. In the following year, Shin-Keisei included Shin-Kamagaya Station as a transfer station, and abandoned the temporary route.

Eastern section

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The section east of Komuro was initially the eastern part of a once-planned Chiba Prefectural Railway (千葉県営鉄道, Chiba Ken'ei Tetsudō) (II, apart from the first which opened the Tōbu Noda Line and the Kururi Line) as an extension of Line 10 (Shinjuku Line). The line was to be built from Moto-Yawata via Komuro to parallel to the line above, then to terminate at present Imba Nihon-idai. The first section between Komuro and Chiba New Town Chūō was opened in 1984, and the operations were commissioned to the present Hokusō Railway.

  • March 9, 1979: Hokusō Line (first phase) of Hokusō Development Railway (北総開発鉄道, Hokusō Kaihatsu Tetsudō) Kita-Hatsutomi – Komuro. Through-operation via Shin-Keisei Line to Matsudo on temporary basis.
  • March 19, 1984: Chiba New Town Line (千葉ニュータウン線, Chiba Nyūtaun sen) of Housing and Urban Development Corporation (住宅・都市整備公団, Jūtaku Toshi Seibi Kōdan) (HUDC onwards) Komuro – Chiba New Town Chūō
  • April 1, 1987: On the section of Komuro – Chiba New Town Chūō, Hokusō Development Railway became the Category-2 Railway Business operator, while HUDC became Category-3 Railway Business. On the commencement of the Railway Business Act (鉄道事業法, Tetsudō Jigyō Hō), Act No. 92 of 1986) for the privatization of the Japan National Railways. Simultaneously, the entire stretch was renamed to Hokusō Kōdan Line (北総・公団線, lit. Hokusō and the Corporation Line)
  • March 31, 1991: Hokusō Line (phase 2) Keisei-Takasago – Shin-Kamagaya. Through-operations by four parties (Hokusō, Keisei Electric Railway, Tokyo Metropolitan Bureau of Transportation (Toei), Keihin Electric Express Railway (Keikyū)) began.
  • July 4, 1992: Shin-Keisei opened Shin-Kamagaya Station. Through-operation to Shin-Keisei terminated. The section of Kita-Hatsutomi – Shin-Kamagaya was abandoned.
  • April 1, 1995: Chiba New Town Chūō – Inzai-Makinohara, as Hokusō Cat-2, HUDC Cat-3
  • 1999: HUDC reorganized to the Urban Development Corporation (都市基盤整備公団, Toshi Kiban Seibi Kōdan) (HDC onwards), continued state of Cat-3 of the line.
  • July 22, 2000: Inzai-Makinohara – Imba Nihon-idai, as Hokusō Cat-2, HDC Cat-3. Present stretch completed.
  • July 1, 2004: Railway properties of HDC transferred to Chiba New Town Railway (千葉ニュータウン鉄道, Chiba Nyūtaun Tetsudō), and the whole line was renamed as the Hokusō Line.

Extension to Narita Airport

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After the abandonment of the planned Narita Shinkansen, routes of rapid transit to Narita Airport had long been discussed. For a utilization of partially completed tracks of the Shinkansen, JR East and Keisei lines to Narita Airport were realized. A much faster line had long been needed, and for that purpose the first priority was the Keisei – Hokusō route. In 2001, a new Cat-3 entity, Narita Rapid Rail Access (成田高速鉄道アクセス, Narita Kōsoku Tetsudō Access) commenced building a new line connecting Imba Nihon-idai to the junction to Narita Airport Rapid Railway (成田空港高速鉄道, Narita Kūkō Kōsoku Tetsudō) which is a Cat-3 company of existing access railways, the tracks of the formerly planned Narita Shinkansen. The express trains are operated by Keisei as a Cat-2 operator with maximum speed at 160 km/h (99 mph), the fastest among Japanese private railways (which was formerly shared with Hokuetsu Express until the opening of the Hokuriku Shinkansen in 2015) which enables a 34-minute journey from Nippori to Narita Airport. The line opened in July 2010.[3]

Local subsidies

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Hokuso Railway fares are significantly higher than those of other private railways in the region. In 2013, a journey of 12.7 km (7.9 mi) on the Hokuso Line cost 540 yen, while a 23.8 km (14.8 mi) journey cost 720 yen. Equivalent journeys on the Keisei Main Line cost 250 yen and 360 yen respectively while equivalent journeys on JR East cost 210 yen and 380 yen respectively. The difference in fares is largely due to the debt burden remaining from the portion of the line built and owned by Hokuso Railway itself; this is also the case for the Tōyō Rapid Railway Line and the Saitama Rapid Railway Line, which are also known for having comparatively high fares.[4]

In 2009, Chiba Prefecture and several municipalities along the line agreed with Hokuso Railway for an average fare reduction of 4.6% (25% for student commuter passes), in exchange for which they agreed to subsidize half of the estimated revenue loss of 600 million yen. The fare reduction was implemented in July 2010 at the time of the opening of the Narita Sky Access Line. In 2011 and 2012, the cities of Shiroi and Inzai elected new mayors on platforms of negotiating for further fare reductions and stopping public subsidies respectively; a third-party study commissioned by the two city governments concluded in August 2013 that the Hokusō Line would break even at more discounted fare levels without local subsidies. Hokuso, on the other hand, has argued that increased consumption tax rates and capital expenditures related to upgrading the Pasmo system will force them to raise fares in 2015.[5][6] Additional fare reduction measures were implemented on 1 October 2022 which brought down regular fares by around 10% along with commuter passes being discounted by an additional 65%.[7]

References

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  1. ^ "時刻表のPDF" [Timetable PDF] (PDF). Japan: Hokuso Railway. Retrieved 13 December 2023.
  2. ^ a b 千葉ニュータウン鉄道9800形が営業運転を開始 [Chiba New Town Railway 9800 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 22 March 2017. Archived from the original on 24 March 2017. Retrieved 24 March 2017.
  3. ^ "京成電鉄「成田スカイアクセス」開業にともない7月17日にダイヤ改正を実施" [Timetable Revisions to take place on Keisei Railway on 17 July for Opening of the Narita Airport Line]. Japan Railfan Magazine Online (in Japanese). 28 May 2010. Archived from the original on 3 February 2023. Retrieved 31 January 2024.
  4. ^ 杉山, 淳一 (5 April 2013). "なぜ北総線の運賃は高いのか "円満解決"の方法を考える". IT Media. Retrieved 29 August 2013.
  5. ^ "北総線、補助金打ち切りへ 千葉県内沿線２市". Nikkei Inc. 28 August 2013. Retrieved 29 August 2013.
  6. ^ "北総線、値下げ継続できるか 補助金切れ「2015年」迫る". Nikkei Inc. 2 August 2013. Retrieved 29 August 2013.
  7. ^ "北総鉄道、普通運賃最大105円、通学定期は約65％の値下げへ" [Hokuso Railway, normal fare up to 105 yen, 65% reduction for school commuter passes]. Tetsudo News (in Japanese). 19 November 2021. Archived from the original on 17 July 2022. Retrieved 28 October 2022.
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