UserCentered Design Within the Context of Automated Driving in Trucks xe2x80x93 Guideline and Methods for Future Conceptualization of Automated Systems The monotony of moving in queues enhances truckersxc2xb4 sleepiness and the danger of micro sleep, which put a serious risk on traffic safety. The research project TANGO aims at overcoming these risks by developing an Attention and Activity Assistance system (AAA). The AAA shall enable truck drivers to engage in nondrivingrelated activities during automated driving phases (up to SAE level 3), but keep them alert for tasks (monitoring or takeover) nevertheless. Throughout the project, numerous user studies have led to a great gain of knowledge about the usersxe2x80x99 needs and design requirements concerning an automated system. For the purpose of an easier accessibility of this knowledge for future research, a guideline will be developed that covers both design guidance as well as a review of applied methods. The main scope of this paper focuses on the methodical process of developing the guideline.

Information Needs and Visual Attention during Urban, Highly Automated Drivingxe2x80x94An Investigation of Potential Influencing Factors During highly automated driving, the passenger is allowed to conduct nondriving related activities (NDRA) and no longer has to act as a fallback at the functional limits of the driving automation system. Previous research has shown that at lower levels of automation, passengers still wish to be informed about automated vehicle behavior to a certain extent. Due to the aim of the introduction of urban automated driving, which is characterized by high complexity, we investigated the information needs and visual attention of the passenger during urban, highly automated driving. Additionally, there was an investigation into the influence of the experience of automated driving and of NDRAs on these results. Forty participants took part in a driving simulator study. As well as the information presented on the humanxe2x80x93machine interface (system status, navigation information, speed and speed limit), participants requested information about maneuvers, reasons for maneuvers, environmental settings and additional navigation data. Visual attention was significantly affected by the NDRA, while the experience of automated driving had no effect. Experience and NDRA showed no significant effect on the need for information. Differences in information needs seem to be due to the requirements of the individual passenger, rather than the investigated factors.