The threat of the Cold War becoming hot meant that these early stations were not suited to double as bomb shelters, and instead, a deep parallel section was built.

Upon his return, and coinciding with his pursuit to save costs on architecture and construction, he cancelled the planned deep-level extension to Fili and instead built a surface line that would see the old stations reopened.

All of the stations, save Molodyozhnaya and Krylatskoye, were at ground level, the original late 1950s trio was built to an identical side-platform configuration, while the remaining four with a standardised island platform.

Despite the success in saving costs, the Russian climate, particularly the winter, the sharp bends, and the small station size made the line one of the most unpopular with passengers.

First the rising Moscow City business centre required a metro line, and a two-station branch was opened from Kievskaya in 2005 to Delovoy Tsentr and again in 2006 to Mezhdunarodnaya.

Six carriage fleet of 24 trains (a mix of Ezh, Ezh1, Em-508 and Em-509) will was passed on to other depots and replaced by the new 81–740.1/741.1 "Rusich" (also known as "Skif") which are more suited for the outdoor climate that the line has.