Zaha Hadid, Norman Foster and Richard Rogers are among seven international practices listed to compete for a 5,000 hectare expansion that hopes to “alleviate severe congestion” at the Mexico City airport. With each team led by Mexican firms, the shortlisted architects, which also include SOM, Gensler, Pascall+Watson and Teodoro González de León with Taller de Arquitectura X, have been asked to envision a 70-gate, phased expansion capable of hosting 40-million passengers per year. A schematic masterplan has been provided by Arup. Completion of the first phases is tentatively planned for 2018.