Abstract
Cooperation between road users based on V2X communication has the potential to make road traffic safer and more efficient. The exchange of information enables the cooperative orchestration of critical traffic situations, such as truck overtaking maneuvers on freeways. With the benefit of such a system, questions arise concerning system failure or the abrupt and unexpected behavior of road users. A human-machine interface (HMI) organizes and negotiates the cooperation between drivers and maintains smooth interaction, trust, and system acceptance, even in the case of a possible system failure. A study was conducted with 30 truck drivers on a dynamic truck driving simulator to analyze the negotiation of cooperation requests and the reaction of truck drivers to potential system failures. The results show that an automated cooperation request does not translate into a significantly higher cooperation success rate. System failures in cooperative truck passing maneuvers are not considered critical by truck drivers in this simulated environment. The next step in the development process is to investigate how the success rate of truck overtaking maneuvers on freeways can be further increased as well as the implementation of the system in a real vehicle to investigate the reaction behavior of truck drivers in case of system failures in a real environment.
Highlights
Cooperation on the road is an essential part of efficient and conflict-free traffic [1,2].Cooperation is defined as jointly working towards a common goal [3]
Since previous studies have shown that design recommendations do not transfer across all cooperation situations [9,20], and the needs of car and truck drivers in cooperation situations differ significantly [20], this study aims to clarify the extent to which explanations for system failures are useful in cooperative truck overtaking maneuvers on freeways, and whether they have an impact on trust and acceptance towards the assistance system
We investigate whether the human-machine interface (HMI) concept achieves a high usability and a high
Summary
Cooperation on the road is an essential part of efficient and conflict-free traffic [1,2]. Cooperation is defined as jointly working towards a common goal [3]. Regarding traffic, this means working together to successfully complete a traffic maneuver [4]. More traffic situations can be improved for all road users where there has been little or barely any cooperation before. One of these situations is the truck overtaking maneuver on freeways. The sudden lane change in the overtaking truck is the most threatening truck driving maneuver on freeways [5]. In addition to the subjectively perceived problems, observations and driving simulator studies show that just prior to a truck overtaking maneuver, truck drivers often tailgate the truck in front [5,6,7]
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