%0 Generic %1 andhensch2021effects %A Hensch, Ann-Christin %A Beggiato, Matthias %A Krems, Josef F. %B Human Interaction, Emerging Technologies and Future Systems V %D 2021 %E Ahram, T. %E Taiar, R. %I Cham: Springer %K crc1410 d02 %P 355-363 %R 10.1007/978-3-030-85540-6_45 %T The Effects of eHMI Failures on Elderly Participants’ Assessment of Automated Vehicle Communication Signals %X External human-machine interfaces (eHMIs) could enhance the inter-action between automated vehicles and surrounding traffic participants if im-plicit signals are insufficient. Traffic safety requires an appropriate level of trust considering potential eHMI failures. Thus, the current study investigated effects of eHMI system failures on elderly participants’ system assessment. During a video-based study, participants assessed an augmented eHMI in three experi-mental blocks of trials. The first block exclusively displayed valid eHMI signals that acted consistently to the vehicle’s movements. The additional blocks also comprised invalid eHMI signals that mismatched the vehicle’s movements. Re-sults revealed higher ratings of trust and perceived safety for a valid system act-ing consistently to vehicle’s movements compared to an initial assessment without system experience. After experiencing eHMI failures, participants’ sys-tem assessment declined. Results underline that eHMI signals are required to be in line with vehicles’ movements to support traffic safety and smooth commu-nication with other traffic participants.

@conference{andhensch2021effects, abstract = { External human-machine interfaces (eHMIs) could enhance the inter-action between automated vehicles and surrounding traffic participants if im-plicit signals are insufficient. Traffic safety requires an appropriate level of trust considering potential eHMI failures. Thus, the current study investigated effects of eHMI system failures on elderly participants’ system assessment. During a video-based study, participants assessed an augmented eHMI in three experi-mental blocks of trials. The first block exclusively displayed valid eHMI signals that acted consistently to the vehicle’s movements. The additional blocks also comprised invalid eHMI signals that mismatched the vehicle’s movements. Re-sults revealed higher ratings of trust and perceived safety for a valid system act-ing consistently to vehicle’s movements compared to an initial assessment without system experience. After experiencing eHMI failures, participants’ sys-tem assessment declined. Results underline that eHMI signals are required to be in line with vehicles’ movements to support traffic safety and smooth commu-nication with other traffic participants.}, added-at = {2022-05-02T16:03:37.000+0200}, author = {Hensch, Ann-Christin and Beggiato, Matthias and Krems, Josef F.}, biburl = {https://www.bibsonomy.org/bibtex/2089317f82a93d6be7e0bb74eecd990fa/hybridsocieties}, booktitle = {Human Interaction, Emerging Technologies and Future Systems V}, doi = {10.1007/978-3-030-85540-6_45}, editor = {Ahram, T. and Taiar, R.}, interhash = {2640a2428f68dc0978bf831d99c27991}, intrahash = {089317f82a93d6be7e0bb74eecd990fa}, keywords = {crc1410 d02}, pages = {355-363}, publisher = {Cham: Springer}, timestamp = {2022-05-06T13:42:36.000+0200}, title = {The Effects of eHMI Failures on Elderly Participants’ Assessment of Automated Vehicle Communication Signals}, year = 2021 }