  It is essential to help drivers have appropriate understandings of level 2
automated driving systems for keeping driving safety. A human machine interface
(HMI) was proposed to present real time results of image recognition by the
automated driving systems to drivers. It was expected that drivers could better
understand the capabilities of the systems by observing the proposed HMI.
Driving simulator experiments with 18 participants were preformed to evaluate
the effectiveness of the proposed system. Experimental results indicated that
the proposed HMI could effectively inform drivers of potential risks
continuously and help drivers better understand the level 2 automated driving
systems.
