Dynamic Capacity Management for Air Traffic Operations in High Density Constrained Urban Airspace

Niki Patrinopoulou*, Ioannis Daramouskas, Calin Andrei Badea, Andres Morfin Veytia, Vaios Lappas, Joost Ellerbroek, Jacco Hoekstra, Vassilios Kostopoulos

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Unmanned Aircraft Systems (UAS) Traffic Management (UTM) is an active research subject as its proposed applications are increasing. UTM aims to enable a variety of UAS operations, including package delivery, infrastructure inspection, and emergency missions. That creates the need for extensive research on how to incorporate such traffic, as conventional methods and operations used in Air Traffic Management (ATM) are not suitable for constrained urban airspace. This paper proposes and compares several traffic capacity balancing methods developed for a UTM system designed to be used in highly dense, very low-level urban airspace. Three types of location-based dynamic traffic capacity management techniques are tested: street-based, grid-based, and cluster-based. The proposed systems are tested by simulating traffic within mixed (constrained and open) urban airspace based on the city of Vienna at five different traffic densities. Results show that using local, area-based clustering for capacity balancing within a UTM system improves safety, efficiency, and capacity metrics, especially when simulated or historical traffic data are used.

Original languageEnglish
Article number395
Issue number6
Publication statusPublished - 2023


  • capacity balancing
  • flow control
  • U-space
  • UAVs
  • urban air mobility
  • UTM

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