Dulles International Airport in the US is set to unveil new checkpoints on the arrival and departure levels on 15 September, in a bid to improve security.

The airport’s transportation security administration will be relocated to a 121,700ft² area on the mezzanine level, which will replace two existing checkpoints near the ticketing area.

Security checkpoint expansions are part of the Dulles development (D2); a $3.4bn construction programme funded by the Metropolitan Washington Airports Authority.

The construction programme also involves terminal expansions, runway work and the creation of an underground AeroTrain System to ferry commuters between terminals.