A metro transfer hub will be built at the Moskva-City business center, according to the press service of the city's construction department, citing Sergei Kidyayev, vice president of Ingeokom, the main contractor for the construction of the Khodynskaya and the Kalininsko-Solntsevskaya lines.

In addition to the existing Vystavochnaya station on the Filyovskaya line, the hub will consist of two new stations, Delovoi Tsentr on the Kalininsko-Solntsevskaya line and Delovoi Tsentr on the planned Khodynskaya circle line.

"If we don't [build the hub], then in 2015, when construction of the business center is complete and 3 million square meters of office space is commissioned, the Filyovskaya line won't be able to cope with the exponentially increased passenger traffic," Kidyayev explained.

The Moscow construction department announced in December the beginning of the new Kalininsko-Solntsevskaya line to link the central areas of the city and Moskva-City with the Dorogomilovsky and Ramenki districts.

In the first stage, a line will be built from the Delovoi Tsentr station to the Park Pobedy station, and the Delovoi Tsentr station at Moskva-City will be opened. Work on the first phase of construction is scheduled for completion in 2013.

It is estimated that the operational length of the line will be 2.4 kilometers.