The AOT's Next Step While much has been reported about infrastructure projects being put on hold at the beginning of this year, the Airport Authority of Thailand is reported to be ready to enter phase 2 of Suvarnabhumi design. A 1.3 billion baht construction project will boost the capacity of the airport to 65 million passengers per year. The project will increase the number of parking bays and enhance terminal space. At the same time, Don Mueang is also getting a facelift that will enable the airport to increase capacity by an additional 18 million a year. As Thailand continues its preparations for the AEC, work is underway to increase the capacity of airports across the country, including Chiang Mai which will soon be able to operate around the clock.