This radical concept is based on the construction of a circular runway with a diameter of approximately 3.5 km around an airport terminal. Such an airport would need only a third of the space of a conventional airport. Another advantage is that aircraft can always take off and land in any direction, depending on wind conditions, since there is always a point without crosswind on the circular runway. So, this kind of airport should be safer than conventional airports.
Landing aircraft can be routed away from residential areas because they are not dependent on a standard approach path. Finally, the ‘Endless Runway’ concept will enable multiple aircraft to take off and land simultaneously, resulting in increased airport capacity.
On the video you can see how it works: