EUROCONTROL's Performance Review Commission launched the 2024 PRC Data Challenge in July 2024 with the aim of engaging with data scientists and aviation enthusiasts for the development of an open model to estimate an aircraft's take-off weight. The dataset for the challenge represents a unique instance of otherwise difficult-to-obtain flight information and could be reused for educational purposes or to further improve the outcome of the challenge.

In this paper, we analyze two months of trajectory data for aircraft landing in five major European airports. Based on open ADS-B data from the OpenSky Network and open performance models, we enrich all trajectories with automatically detected procedure information, fuel consumption, and emissions for supported aircraft types. To assess the inefficiencies associated with holding patterns, point merges, and continuous descent operations across different airports, we propose methodologies to quantify and compare these environmental inefficiencies. Holding patterns are found to have a higher negative impact on the environment than point merge and continuous descent operations. Furthermore, the paper provides recommendations for procedure evaluations of future airports, which could help policymakers and relevant stakeholders to evaluate the environmental performances of arrival procedures based on open data and open models