structural:summarization, information:classification, quality:correction
Underground

The Yerevan Metro named after Karen Demirchyan, (Armenian: Կարեն Դեմիրճյանի անվան Երեւանի մետրոպոլիտեն կայարան (Karen Dyemirchyani anvan Yerevani metropoliten kayaran)) is a rapid transit system that serves the capital city since 1981. It has a single line of 12.1 km (7.5 mi) length with 10 active stations and 45 units in service. The interiors of the stations resemble that of the former western Soviet nations, with chandeliers hanging from the corridors. The metro stations had most of their names changed after the collapse of the Soviet Union and the independence of the Republic of Armenia.

A northeastern extension of the line with two new stations is currently being developed. The construction of the first station (Ajapnyak) and of the one-kilometre (0.62-mile) tunnel linking it to the rest of the network will cost US$18 million. The time of the end of the project has not yet been defined. Another long-term project is the construction of two new lines, but these have been suspended due to lack of finance.

The system transports more than 60,000 people on a daily basis.