Interesting snapshots of US air traffic… Starting with Denver International Airport, everything looks orderly and under control.

But keep zooming out…

And things will get incredibly complex and unbelievably busy:

Until it simply starts looking like a swarm of bees covering the territory of the US:

link

According to the Bureau of Transportation Statistics, a total of 798.4 million passengers boarded domestic flights in the United States in the year 2015. This averages to 2.19 million passengers flying per day!

This is why the map looks so packed.