In the course of an intermodal journey, there are varying compensation policies covering topics like missed
connections, delays or denied boarding on the intra-modal level. The risks of an inter-modal journey usually lie
with the travellers. This study examines how an integrated solution can be offered with the focus on transfer
situations for air passengers commuting by public transport. For this purpose, in a first step, the concept of the
digital twin is transferred to the traveller, creating a virtual image of his journey, the so-called passenger
trajectory. In the second step, scheduled departures and arrivals are blended with these passenger trajectories,
resulting in a detailed service demand for all relevant infrastructures and means of transport. The third step is
data enrichment with real-time information and forecasts that keep track of demand. Digitisation of passengers’
trajectories, system wide information exchange and real-time based situational awareness improve resource
utilization as well as intermodal connectivity
