Denver International Airport Automated Guideway Transit System and about 5,000 passengers were affected by the failure. The day of the failure is now referred to as "Black Sunday" by airport personnel. 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,
Stapleton International Airport began to consider how the Stapleton site would be redeveloped. A private group of Denver civic leaders, the Stapleton Development Foundation, convened in 1990 and produced a master plan for the site in 1995, emphasizing a pedestrian-oriented design rather than the automobile-oriented designs found in many other planned developments. Originally Denver sought tenants for Stapleton's terminal and concourses, but these buildings proved ill-suited for alternative uses. A July 1997 hailstorm punched roughly 4,000 holes in the roofs of the old terminal and concourses, causing severe water damage, which compelled the city to tear them down. However, the airport's 12-story control