The new stations - Filatov Lug, Prokshino, Olkhovaya and Kommunarka - are expected to be used by more than 44,000 passengers a day.
Services on the line will be operated with the “Moscow” metro trains, which feature air-conditioning, interactive passenger information screens and USB charging points.
The extension will reduce congestion on neighbouring lines, including by 17% at Teply Stan station, by 12% at Rasskazovka station, 15% at Buninskaya Alley station, and 14% at Salaryevo station. It will also reduce travel times into the city centre by 40 minutes.
The opening follows the launch of the first section of the Nekrasovskaya Line (Line 15) on June 3.
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