Thailand is embarking on a building spree that promises to more than double the passenger capacity of airports in and around Bangkok, propelling the Thai capital past regional hub Singapore by that measure, Nikkei Asian Review reports. Architect Duangrit Bunnag has designed the winning bid for Suvarnabhumi Airport’s much-anticipated second terminal. The design, however, is causing fresh accusations of copycat design as experts identified similarities with the work of Japanese architect Kengo Kuma. The Airports of Thailand Plc., which manages six airports in Thailand including the Suvarnabhumi, will build two additional airports to serve Chiang Mai and Phuket, both tourist cities where airports are at overcapacity, according to Reuters.