The reason the aircraft following aborts and goes around is because that's what aircraft do. At major airports incoming aircraft are what is referred to as "stacking" . You can see this obvious activity when near an incoming runway. Since aircraft are deaccelerating they are in fact losing altitude, this creates the stacking as the further from this line of approach the rear incoming are at a higher altitude. If you look to the rear you will see other aircraft coming in and lining up, depending on the direction the are approaching from. As the rule of thumb approaches and snorts are counterclockwise but there are instances where exceptions are made. Moreso in recent years you will here of aircraft landing at wrong airports , this is due to pilot error in reception of flight following which is a request from a pilot to follow him with radar through vectors, each vector is controlled by a specific tower, not all airports have a tower so the nearest regional tower will be in control. Example is KMIV, located in Millville,N.J., they are under Philadelphia 60 miles Northwest, but if there's a congestion they will pass it to Newark N.J. or La Guardia or Kennedy and in some instances Dover AFB. To note the triangle of Dover AFB, Lakehurst NAES, McGuire AFB and Aberdeen Proving Ground with KMIV situation along with 6 major Intl Airports and we'll over 627 other airports private and public within a 200 mile radius makes it one of the most congested airways and military flight zones in the U.S. not considering the live gunnery and bombing ranges within the state as well as offshore. Planes are diverted for basic reasons, fast approach, the aircraft just landing isn't clearing the runway fast enough, incidence on tarmac etc. Use your atc and you're problems will be simply nonexistent.
