Washington Dulles International Airport 1980s the original design, featuring mobile lounges to meet each plane, was no longer well-suited to Dulles' role as a hub airport. Instead, midfield concourses were added to allow passengers to walk between connecting flights without visiting the main terminal. Mobile lounges were still used for international flights and to transport passengers between the midfield concourses and the main terminal. An underground tunnel (consisting of a passenger walkway and moving sidewalks) which links the main terminal and Concourse B was opened in 2004. The Metropolitan Washington Airports Authority (MWAA) began a renovation program for the airport including a new security
Mexico City International Airport Mexico City International Airport Mexico City International Airport (); officially "Aeropuerto Internacional Benito Juárez" (Benito Juárez International Airport) is an international airport that serves Greater Mexico City. It is Mexico's and Latin America's busiest airport by passenger traffic and aircraft movements. The airport sustains 35,000 jobs directly and around 15,000 indirectly in the immediate area. The airport is owned by Grupo Aeroportuario de la Ciudad de México and operated by Aeropuertos y Servicios Auxiliares, the government-owned corporation, which also operates 22 other airports throughout Mexico. In recent years Toluca Airport has become an alternate airport. This hot and high airport