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
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,