| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | control tower | United States | Control towers are used to manage air traffic and coordinate aircraft movements at airports. | 1 |
| 2 | control tower | United States | Critical for managing air traffic at airports | 1 |
| 3 | control tower | United States | Control towers are essential for managing air traffic at airports. | 1 |
| 4 | control tower | United States | Control towers are essential for managing air traffic and ensuring safe airport operations. | 1 |
| 5 | control tower | United States | Control towers are a crucial part of airport infrastructure, responsible for managing the flow of air traffic and ensuring safety during takeoff and landing. | 1 |