I am currently analyzing flight data. For some flights landing at Frankfurt Airport.
As you can see in the graphic, some of the planes fly out about 100km to then fly again towards the runway. Some only fly out for a short distance. How can you explain that?
I assume that after the cruise phase, the approach phase depends on factors such as traffic volume at the airport (how many want to land at my time (or in my 10min radius)) and take off?) How is the Operating direction at the airport and what kind planes want to land. Since I was told that the "plane mix" is also relevant, for example 2x MEDIUM aircraft and 3x large.
Are there rules for such behavior? How does the ATC decide here?