Bolshaya Koltsevaya line

The Bolshaya Koltsevaya line (Russian: Большая кольцевая линия), known in English as the Big Circle Line, designated Line 11 and 11A 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.

 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 nameБольшая Кольцевая линия
LocaleMoscow
Stations31
Service
TypeRapid transit
SystemMoscow Metro
Operator(s)Moskovsky Metropoliten
Rolling stock81-775/776/777
History
Opened11 August 1969 (Kakhovskaya line stations)
26 February 2018 (Bolshaya Koltsevaya stations)
1 March 2023 (circle completed)
Technical
Line length62.5 km (38.8 mi) (including branch)
57.538 km (35.752 mi) (circle only)
CharacterUnderground
Track gauge1,520 mm (4 ft 11+2732 in)
ElectrificationThird rail
Route map

Savyolovskaya
Petrovsky Park
CSKA
Khoroshyovskaya
future (from 2027)
Shelepikha
Delovoy Tsentr
Narodnoye Opolcheniye
()
Mnyovniki
Terekhovo
Kuntsevskaya
Davydkovo
Aminyevskaya
Michurinsky Prospekt
Prospekt Vernadskogo
Novatorskaya
()
Vorontsovskaya
Zyuzino
Kakhovskaya
Varshavskoye yard
Varshavskaya
Kashirskaya
Klenovy Bulvar
()
Nagatinsky Zaton
Pechatniki
Tekstilshchiki
to Nekrasovskaya line
Nizhegorodskaya
Nizhegorodskoye yard
Aviamotornaya
Lefortovo
Elektrozavodskaya
Sokolniki
Rizhskaya
Maryina Roshcha

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). 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.

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.

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