Customer loyalty is gaining importance in the transport service sector due to the specific competitive situation characterized by inter- and intra-modal competition. Jörg Niessing analyzes customer loyalty in the transport service sector and identifies the key influencing factors. Based on empirical findings, the author derives recommendations for action for eight clusters in the context of selective customer loyalty management. These recommendations are oriented towards both the emotional attachment and the actual commitment of the customer, as well as the respective customer value. Additionally, the author provides implications for marketing in long-distance passenger transport of Deutsche Bahn AG.