In order to bring air travel demand and its capacity as closely together as possible, an airline needs to adopt an appropriate methodological approach for fleet planning process. The goal of this paper is to solve aircraft type(s) selection problem for known route network and forecasted air travel demand by using the Analytic Hierarchy Process (AHP). The sensitivity analysis of alternative ratings in respect to different pairwise comparisons of the criteria is carried out. By changing one element in the pairwise comparison matrix (while keeping others constant), the process of aircraft type selection is monitored hereby enabling possible improvements

In order to provide a satisfactory choice while dealing with multiple criteria, planners apply some of the multiple criteria decision making (MCDM) methods as an aid to decision making. As the aircraft type selection embodies inherent multi-criteria decision making, two MCDM methods, the Analytic Hierarchy Process (AHP) and the Even Swaps Method (ESM), are applied and illustrated with the case study of a hypothetical regional airline. These methods are compared, as well as solutions they arrived at. Considering the difference between the AHP and ESM, a sensitivity analysis is carried out in different ways. In the AHP, the sensitivity of alternative ratings in respect to different pairwise comparisons of the alternatives is analysed, showing that the AHP is sensitive to this kind of changing. In the even swaps method, the objective ranking across alternatives is varied showing that the ESM is not sensitive at all. The final priority weight for specific aircraft type decreases with the decrease of the domination measure of one aircraft over another with respect to payment conditions, for all aircraft types in the solutions obtained by AHP

Intermodal and multimodal door-to-door journeys refer to the usage of various transport modes (air, rail, bus, road or maritime) by the traveler to complete a single journey. The main difference between these two approaches is that multimodal transport is executed under a single transport contract (a single ticket) between the passenger, on the one hand, and transport operators, on the other hand. The benefits of this type of service are reflected in the potential to save time and money. Such systems would make the transport sector greener and more sustainable, promote growth and reduce carbon emissions. The purpose of this paper is to define the concept of an air passenger multimodal transport system, identify factors and challenges that determine such a system’s development within Europe and to provide recommendations and directions for future research. The research carried out so far has indicated that market segmentation and transport system characteristics, as well as economic, social and political factors, have direct impacts on system development. This paper provides the basis for introducing single ticket, timetable synchronization and data sharing services, as well as the need to update the related regulations in order to move towards air passenger multimodality in both research and practice.