Bolshaya Koltsevaya line

Bolshaya Koltsevaya line
Bolshaya Koltsevaya line
	Geographic map showing the approximate path of the Bolshaya Koltsevaya line (in teal) in the whole Moscow Metro network (in dark grey) including Central Circle and Monorail
Overview
Other name(s)	Large Circle Line
Native name	Большая Кольцевая линия
Locale	Moscow
Stations	31
Service
Type	Rapid transit
System	Moscow Metro
Operator(s)	Moskovsky Metropoliten
Rolling stock	81-775/776/777
History
Opened	11 August 1969 (Kakhovskaya line stations); 26 February 2018 (Bolshaya Koltsevaya stations); 1 March 2023 (circle completed)
Technical
Line length	62.5 km (38.8 mi) (including branch); 57.538 km (35.752 mi) (circle only)
Character	Underground
Track gauge	1,520 mm (4 ft 11+27⁄32 in)
Electrification	Third rail
Route map
	Legend
	This diagram: view; talk; edit;

The Bolshaya Koltsevaya line (Russian: Большая кольцевая линия), known in English as the Big Circle Line,^[3] designated Line 11 and 11A^[4] is a rapid transit line of the Moscow Metro. It is the third circle line on the system, running outside of the existing circle Koltsevaya line and interlocking with Moscow Central Circle.

The first section of the line opened on 26 February 2018 with the remaining stations opened on 1 March 2023. The line includes 31 stations including three from the former Kakhovskaya line and is over 62 km (39 mi) long including a branch to Moscow International Business Center that is a part of future Rublyovo-Arkhangelskaya line. The circle line itself is 57.5 km (35.7 mi) long, which makes it the longest metro circle line in the world, surpassing Line 10 of Beijing Subway by 514 m (1,686 ft).^[5] In November 2017 the city estimated the total cost of the project at 501 billion rubles, up from earlier estimates of 378.9 billion rubles.^[6]

Formerly known as the Third Interchange Contour, the city adopted "Bolshaya koltsevaya liniya" as the official name of the line after a vote via the "Active Citizen" web portal.^[7]

^ "Не 70 км, а 57,5! Как московские власти "удлинили" Большую кольцевую линию метро". 22 March 2023.
^ "IMG 20230327 063939 969 — Postimages".
^ "Seventy km and 31 stations: Building the Big Circle Line / News / Moscow City Web Site". Moscow City Web Site. Archived from the original on 7 December 2021. Retrieved 7 December 2021.
^ "Scheme Moscow Metro". Archived from the original on 2017-02-28. Retrieved 2016-09-11.
^ "Moscow Metro launches World's longest metro circle line - Big Circle Line 11". Metro Rail Today. Retrieved 2023-03-01.
^ "Строительство второго кольца метро подорожало до 500 млрд руб". RBC. 2017-11-23. Archived from the original on 2018-05-23. Retrieved 2017-11-26.
^ "Большая кольцевая линия: "активные граждане" выбрали название для новой ветки метро" (in Russian). City of Moscow. 2017-12-28. Archived from the original on 2017-12-28. Retrieved 2017-12-28.

[1] "Не 70 км, а 57,5! Как московские власти "удлинили" Большую кольцевую линию метро". 22 March 2023.

[2] "IMG 20230327 063939 969 — Postimages".

[3] "Seventy km and 31 stations: Building the Big Circle Line / News / Moscow City Web Site". Moscow City Web Site. Archived from the original on 7 December 2021. Retrieved 7 December 2021.

[4] "Scheme Moscow Metro". Archived from the original on 2017-02-28. Retrieved 2016-09-11.

[5] "Moscow Metro launches World's longest metro circle line - Big Circle Line 11". Metro Rail Today. Retrieved 2023-03-01.

[Cost-6] "Строительство второго кольца метро подорожало до 500 млрд руб". RBC. 2017-11-23. Archived from the original on 2018-05-23. Retrieved 2017-11-26.

[BKL-7] "Большая кольцевая линия: "активные граждане" выбрали название для новой ветки метро" (in Russian). City of Moscow. 2017-12-28. Archived from the original on 2017-12-28. Retrieved 2017-12-28.

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