Flight disruptions continue with thousands more cancellations as Omicron thins airline crews.
At least 2,400 more flights were canceled globally on Monday, including about 900 U.S. flights.
Trails of Wind - The architecture of airport runways
Air travel has been in existence for over one hundred years. Since its inception, thousands of airports runways have been built – each one of them designed site specifically, and according to landscape and natural conditions.