How far are the airports across the country from the city?
Beijing Capital International Airport is 25.4 kilometers away from Tiananmen Square
Shanghai Hongqiao International Airport is 13.5 kilometers away from the city center
Shanghai Pudong International Airport is 65 kilometers away from the city center
>Tianjin Binhai International Airport is 13.3 kilometers away from the city center
Taiyuan Wusu Airport is 13.8 kilometers away from Wuyi Square
Infrastructure: The airport can be divided into "non-restricted area" and "non-restricted area" "Restricted area" (controlled area) range. The non-prohibited area includes parking lots, bus stations, oil storage areas and external roads, while the restricted area includes all places where aircraft enter, including runways, taxiways, aprons and oil storage depots.
Most airports will implement strict control in the middle range from non-restricted areas to restricted areas. Passengers entering the restricted area must pass through the terminal, where they can purchase tickets, undergo security checks, check in or claim baggage, and board the plane through the boarding gate.
Extended information:
Navigation aid sign: standard visual approach glide indicator light.
There will be several navigation aids on the runway to help pilots land, such as visual approach and glide indicator lights. Some airports are equipped with very high frequency omnidirectional beacons to help pilots find the direction to the airport. The very high frequency omnidirectional beacon systems are equipped with rangefinders to determine the distance between the aircraft and the very high frequency omnidirectional beacons.
When weather conditions are bad, even if pilots cannot see ground conditions, they can still use the instrument landing system to find the correct runway and approach. In addition, the use of global positioning systems for landing is rapidly increasing and may become the primary instrument landing method in the future.
Precision approach radar (PAR) is sometimes provided at larger airports, but is more common at Air Force bases. This system uses radar to track the horizontal and vertical movement of the aircraft, allowing the pilot to perform a visual landing.
Baidu Encyclopedia-Airport