Dulles District Broad Run High School, Loudoun County High School, Loudoun Valley High School, Park View High School, Potomac Falls High School, and Stone Bridge High School. The Dulles District's name is derived from the district's proximity to Washington Dulles International Airport, which is located in eastern Loudoun County. Loudoun County's growth has been a factor in creating the Dulles District as more high schools in the county were being built during the 2000s, including four new members in the district since its founding in 2001. In 2002, Heritage High School opened; in 2003, Dominion High School opened; in 2005, Briar Woods
Washington Dulles International Airport mezzanine with more room for lines. A new train system, dubbed AeroTrain and developed by Mitsubishi, began in 2010 to transport passengers between the concourses and the main terminal. The system, which uses rubber tires and travels along a fixed underground guideway, is similar to the people mover systems at Singapore Changi Airport, Hartsfield–Jackson Atlanta International Airport, and Denver International Airport. The train is intended to replace the mobile lounges, which many passengers found crowded and inconvenient. The initial phase includes the main terminal station, a permanent Concourse A station, a permanent Concourse B station, a permanent midfield concourse station