Air vehicles
There are paths even in the air
Air routes
Can planes fly anywhere across the sky?
There are paths in the sky called air routes. Planes fly along air routes.
 
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Planes fly along these air routes
Because planes fly at very high speeds in the air, if they passed too closed to one another, this could be extremely dangerous. This is why the direction and height in which airplanes should fly has been set in order to keep flying safe. The airplane follows the orders of the airport and the air traffic controller in the control center.
In the control center, information taken from radar equipment which is set up in various locations is input into a computer. Information such as the location of the plane in flight can be received quickly. Based on the information the air traffic controller gives the plane instructions.
 
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Information displays on the radar screen of the air traffic controllers   Information displays on the radar screen of the air traffic controllers
Information displays on the radar screen of the air traffic controllers
The control tower and the control center
The airplane flies following instructions from air traffic controllers in the airport and in the control center. The air traffic controller in the control center is responsible for the air space. The control tower of the airport and the control center divide up the responsibility.
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Airplanes leaving the airport take instructions from the airport’s air traffic controller for a certain time after take-off.
After that, the air traffic controller in the control center takes over from the airport’s air traffic controller. As the airplane gets near its destination airport, the airport’s air traffic controller takes over from the control center’s air traffic controller.
The air space over Japan and the surrounding oceans have been divided into four areas. In each area there is a control center to ensure safe flying.
 
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The control tower of Narita Airport
Control tower of the Narita Airport
 
The rador control room
Rador control room