Denver International Airport Automated Guideway Transit System Denver International Airport Automated Guideway Transit System The Denver International Airport Automated Guideway Transit System is a people mover system operating at Denver International Airport in Denver, Colorado. The system opened along with the airport itself in 1995, and was conceived as a means to connect all of the midfield concourses with the south terminal and quickly transport passengers between them because of the longer distances between each building, especially when compared to Stapleton International Airport, Denver's former airport. Located within the secure areas of the airport, the AGTS utilizes two mile-long tunnels traveling underneath the aircraft taxiways and passing
Stapleton International Airport Denver to El Paso, St. Louis and Tulsa. Frontier operated northbound and southbound from Denver to the other mountain states. Western connected Denver to Minneapolis and Edmonton. The April 1957 OAG shows 38 United, 12 Continental, seven Braniff, seven Frontier, seven Western, five TWA and one Central. The jet age arrived in May 1959 when Continental began operating Boeing 707 jetliners into Stapleton, initially under weight restrictions due to Stapleton's runway capacity. Runway 17/35 and a new terminal building opened in 1964. Although Stapleton officially adopted the "International" name in 1964, its first nonstop international service came in 1968, when