For the first time, visitors at the 2024 Olympic Games will be able to fly to venues using air taxis. Vertical takeoff aircraft such as drones, multirotors and air taxis will take off from and land on pads known as vertiports. Researchers at the Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR are developing an entirely digital sensor network, including a radar sensor, that in the future will be able to closely monitor air traffic at a vertiport and ensure safe flight operations.