Expansion of Sheremetyevo continued into 2010. Sheremetyevo-1 was renamed Terminal B on 28 March. Terminal E was opened on 30 April, connecting Terminal D and Terminal F and increasing the airport's capacity to 35 million passengers per year. In June, construction started for Terminal A, a private aviation terminal. In July, a walkway opened between Terminals D, E, F, and the Aeroexpress railway terminal on the public access side. In November, a walkway opened between Terminals D, E, and F on the security side. Both of have simplified transfer between transit flights. Ultimately, after the northern the recent construction work, the airport now has the capacity to receive more than 40 million passengers annually.