Arbatsko-Pokrovskaya line
Moscow Metro line

The Arbatsko-Pokrovskaya line (Russian: Арба́тско-Покро́вская ли́ния, IPA: [ɐrˈbatskə pɐˈkrofskəjə ˈlʲinʲɪjə]) (Line 3; Blue Line) is one of the lines of the Moscow Metro system in Moscow, Russia. Chronologically the second to open, it connects the Mitino District and the town of Krasnogorsk to the northwest of Moscow with the eastern suburbs of the Russian capital passing through the city centre. There are 22 stations on the line, which is 45.1 kilometres (28.0 mi) long.
History
The history of this west-east line is one of the more complicated of the Moscow Metro, and is partly due to the politics, namely constant changes of priorities. In 1935, when the first stage opened, a branch of the existing line ran from Okhotny Ryad to the Smolenskaya Square on the Garden Ring. The branch was extended to the Kiyevsky railway station in 1937.
In 1938 the branch was split into a separate line, and a 3.2 kilometres (2.0 mi) stretch connecting Alexander Garden and the Kursky railway station opened. Despite the outbreak of World War II, the construction of the metro continued, and in 1944 three stations of the Pokrovsky radius were completed.
The eastern part of the line was extended three times, one extension being to the Pervomayskaya temporary station inside a newly opened depot. It was replaced in 1961 by the Izmaylovsky Park, Izmaylovskaya and the Pervomayskaya stations.
Begin with the source’s own compact description: “Arbatsko-Pokrovskaya line” is moscow Metro line. The dossier treats that line as a proposition to test through Arbatsko-Pokrovskaya, line and Moscow, not as a finished interpretation.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 7, 2026. The linked authority identifier is Q626941. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1935, 1937, 1938 and 1944.
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This entry incorporates text from “Arbatsko-Pokrovskaya line” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.