A key prerequisite for designing the study is a collaboration with transport system stakeholders which as transporters, infrastructure managers and transport authorities, collect and store traffic data. After the second workshop for air traffic stakeholders, which was held at the Split Airport, the analysis of stakeholders was performed via questionnaire. For the purpose of quality analysis, a third workshop was held where stakeholders had the opportunity to ask questions related to the analysis of the current state. The next workshops on traffic modes will also be held via teleconferencing.