# Modeling User Acceptance of In-Vehicle Applications for Safer Road Environment
## 4 Questionnaire Design and Data Collection  
We collected data from 308 respondents using a questionnaire which was designed based on previous studies. The items in the questionnaire or survey for each construct are shown in Table 6. Respondents are required to rate the items on a scale of 1 (totally disagree) to 7 (totally agree). \begin{table}
\begin{tabular}{p{113.8 pt} p{227.6 pt}} \hline \hline
**Construct** & **Items** \\ \hline \multirow{6}{*}{ Perceived Usefulness (PU)} & In-vehicle application features make driving more convenient. \\  & In-vehicle application features would enable me to reach my destination quickly and safely. \\  & In-vehicle application features would enable me to reach my destination cost-efficiently. \\  & Using in-vehicle application features means extensive internet connectivity is required. \\  & Using in-vehicle application features in my vehicle is meaningless if other vehicles are not equipped with \\  & in-vehicle application features as well. \\ \hline \multirow{6}{*}{ Perceived Ease of Use (EU)} & I do not need special training to learn how to use in-vehicle application features. \\  & I require in-vehicle application features instruction manual to be able to use the features perfectly. \\  & It is easy to become skillful in using in-vehicle application features. \\  & In-vehicle application features are easy and simple to understand. \\ \hline \multirow{6}{*}{ Attitude (AT)} & I think using in-vehicle application features would be a good idea. \\  & I think in-vehicle application features would make my driving experience more interesting and fun. \\  & When I drive a vehicle with in-vehicle application features, I feel satisfied. \\  & Overall, available in-vehicle application features in my vehicle meet my expectations. \\  & I will recommend in-vehicle application features to others. \\ \hline \multirow{6}{*}{Intention to Use (BI)} & I am willing to use in-vehicle application features in the future. \\  & I am willing to use in-vehicle application features frequently and consistently if given the opportunity. \\  & If the vehicle with in-vehicle application features becomes available to me, I plan to obtain and use it. \\  & I will use in-vehicle application features if required. \\ \hline \multirow{6}{*}{ Trust (T)} & I believe in-vehicle application features are verified professionally. \\  & I believe the in-vehicle application features are reliable. \\  & I believe in-vehicle application features will perform better as an add-on to my vehicle. \\  & I believe my driving experience will be safer with in-vehicle application features. \\  & I am worried about using in-vehicle application features. \\ \hline \multirow{6}{*}{ System Characteristics (SCs)} & I am afraid that a mounted dashcam to display alerts from in-vehicle application features will distract my driving. \\  & Using in-vehicle application features do not really bother me to drive. \\  & I will only use in-vehicle application features with audio when I drive. \\  & In-vehicle application features with visuals on the vehicle dashboard will not affect my driving. \\  & I prefer in-vehicle application features integrated into a mounted car dashcam. \\ \hline \multirow{6}{*}{ Social Influence (SI)} & I would be proud to show the vehicle with in-vehicle application features to people who are close to me. \\  & I would feel more inclined to use in-vehicle application features if it was widely used by others. \\  & I would prefer to have someone else as a passenger when I drive a car with in-vehicle application features. \\ \cline{1-1}  & Other people will encourage me when I use in-vehicle application features. \\ \cline{1-1}  & Other people will think I am wasting money when I purchase a vehicle with in-vehicle application features. \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Survey items. Figure 2: Research model. The sociodemographic details of each respondent include their gender and age as other previous work.