Investigating User Needs for Trip Planning with Limited Availability of Automated Driving Functions

The possibility to engage in so-called non-driving related activities (NDRAs) is an important benefit of automated driving. However, in the beginning, automated driving functions will be limited to certain sections of a drive, e.g., to highways or less complex city infrastructure. In order to efficiently engage in NDRAs, planning of a trip with regard to the availability of automated driving will become important. Yet, there are no approaches to incorporate the user in the trip planning process. Thus, we have performed scenario-based design approach and a participatory design workshop to derive user requirements for a trip planning human-machine interface (HMI). Amongst others, participants required having the ability to configure general travel profiles, e.g., on-time arrival or maximization of uninterrupted automated driving time. Moreover, the system should provide the user with a comparison of key data on various route options, such as an overview of available levels of driving automation and arrival times. Within this work, a low-fidelity prototype for such an HMI was developed based on derived requirements. For future development, this prototype needs further improvement and evaluation.