Intermodality is an important aspect of modern travel apps. This means that, ideally, the traveler is guided from their home via public transport, bike or car to the right platform or gate at the train station or airport and finally to their destination (door-to-door navigation). At train stations and airports, in addition to a navigation function, an app can provide data on delays and gate/track changes as well as information about stores and restaurants in the vicinity.
Travel apps can be linked to external systems which, for example, help finding a parking space or a rental car and enable shopping on the go. Location based services, which are interesting for retailers at train stations and airports, can also be integrated.
