This is Air Traffic Control

 Air Traffic Controllers (ATC) roles is to maintain safe and efficient separation between the aircrafts. Safely is to avoid mid-air collision and efficiently is to avoid flight delay

How It All Works Together?

Step   1- Preflight: Pilot files the flight plan & send to the Tower controller. Tower inform pilot the weather information. Flight checks, push-back from the gate & taxi to the runway.

Step   2- Take-off: Tower controller gives pilot clearance for take-off, aircraft powers up & take-off.

Step 3- Departure: Aircraft climbs to a define altitude Tower controller pass their communication with pilot to the TRACON controller. Pilot receives clearance for routing.

Step 4- En-route: Air route controller instructing pilot to the specific altitude and heading.

Step 5- Descent: Near airport, TRACON controller instructing pilot to descent & change heading.

Step 6- Approach: Pilot receives approach clearance by TRACON controller & their communication with pilot is passed to the Tower Controller.

Step 7- Landing: Local controller gives clearance for landing. Ground controller directs the pilot across the taxiways to its destination gate at the terminal.

This is Air Traffic Control