The project will develop and validate a concept for dynamic required navigation performance (RNP) route allocation in the terminal area in order to make air traffic control operations more sustainable, resilient, responsive and adaptive towards changes in operational conditions and variations in traffic demand. The aim is to deliver an end-to-end concept, including relevant decision-support tools evolution and taking into account cross-border operations. A move to dynamic routing is expected to result in improved fuel efficiency and environmental sustainability without negatively impacting capacity, while improving safety and cost efficiency.