  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 can increase trust in automation.
Situational awareness should increase trust and lead to better secondary task
performance. This study manipulated situational awareness 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 situational awareness both promoted and moderated the impact of trust in
the automated vehicle, leading to better secondary task performance. This
result was evident in measures of self-reported trust and trusting behavior.
