Situational Awareness, Driver’s Trust in Automated Driving Systems and Secondary Task Performance
Journal Article
12-02-02-0009
ISSN: 2574-0741, e-ISSN: 2574-075X
Sector:
Topic:
Citation:
Petersen, L., Robert, L., Yang, X., and Tilbury, D., "Situational Awareness, Driver’s Trust in Automated Driving Systems and Secondary Task Performance," SAE Intl. J CAV 2(2):129-141, 2019, https://doi.org/10.4271/12-02-02-0009.
Language:
English
Abstract:
Driver assistance systems, also called automated driving systems, allow drivers
to immerse themselves in non-driving-related tasks. Unfortunately, drivers may
not trust the automated driving system, which prevents either handing over the
driving task or fully focusing on the secondary task. We assert that enhancing
situational awareness (SA) can increase a driver’s trust in automation. SA
should increase a driver’s trust and lead to better secondary task performance.
This study manipulated drivers’ SA by providing them with different types of
information: the control condition provided no information to the driver, the
low condition provided a status update, while the high condition provided a
status update and a suggested course of action. Data collected included measures
of trust, trusting behavior, and task performance through surveys, eye-tracking,
and heart rate data. Results show that SA both promoted and moderated the impact
of trust in the automated vehicle (AV), leading to better secondary task
performance. This result was evident in measures of self-reported trust and
trusting behavior.