The airport's details and T-shaped plan recall train stations of an earlier era, but this modern facility combines and plays with traditional elements in new and innovative ways. Walls of green glass, interrupted by triple arches of brick and composite block, support an “entablature” that is almost all glass. Above, rectilinear brackets support the deep eaves of a green metal roof. Below a glistening white dome, the wide facade is preceded by an open-truss segmental-arched entrance canopy. Inside, the curve segues into an open brick-arched circle that, with the dome above, is intended as a reference to Thomas Jefferson's architectural influence in the Piedmont. From this rotunda, service areas lead left and right, but straight ahead a barrel-vaulted concourse conveys passengers to the single boarding area.