Japanese drivers' acceptance investigation of the driver-vehicle interaction system

This descriptive study investigated respondents' acceptance of
driver-vehicle interaction systems by modifying the technology acceptance
model using user experience concepts. A questionnaire survey including 15
variables was conducted to examine six constructs proposed in the modified
technology acceptance model: perceived usefulness, perceived enjoyment,
satisfaction, attitude, interactive media, and user interface. 495 samples
aged from 21 to 82 years old (48.7 ± 12.5 years) including 279 males and
216 females were collected for data analysis. Confirmatory factor analysis
demonstrated the reliability and validity of the model using several
indices. Correlations between constructs were proven using path analysis
(p < 0.05). Then, the influences of drivers' gender and age on
the constructs were analyzed using linear regression analysis. Male
drivers had higher perceived usefulness and more positive attitudes than
female drivers. However, their perceived enjoyment of the system was lower
than that of females (p < 0.01). Older age led drivers to prefer a
negative attitude toward driver-vehicle interaction systems and dislike
utilizing the user interface (p < 0.01). Finally, four implications
based on the analysis were proposed to guide the design of driver-vehicle
interaction systems. This study clarified the feasibility of the modified
technology acceptance model for investigating Japanese driver’s opinions
on driver-vehicle interaction systems and provided insights for designing
vehicle human-machine interfaces to improve driver acceptance.