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,
Portland International Airport Portland International Airport Portland International Airport is a joint civil-military airport and the largest airport in the U.S. state of Oregon that accounts for 90% of passenger travel and more than 95% of air cargo of the state. It is within Portland's city limits just south of the Columbia River in Multnomah County, by air and by highway northeast of downtown Portland. Portland International Airport is often referred to by its IATA airport code, PDX. The airport covers 3,000 acres (1,214 ha) of land. Portland International Airport has direct flights and connections to most major airports throughout the United States,