# Teenagers and Automated Vehicles: Are They Ready to Use Them?
## 4 Results and Discussion
### Post-Pre Survey Results  
The parallel design of the quantitative and qualitative method allowed the comparison of both types of results. While the quantitative method provided objective information about people's opinions, the qualitative one offered an additional level of information to our research and knowledge related to the different issues raised in the discussions. Table 2 presents the results of the survey filled in by the participants and the means of the variables before and after the FG and engagement activities. The difference between the means shows how the opinions of the participants evolved throughout the different activities. In the table, the statistically significant variables are indicated with asterisks according to their level of significance. When considering the knowledge on AVs, the teenagers surveyed showed a limited knowledge before the activities, while this knowledge significantly increased after the activities. This result is in line with the aspects mentioned in the FGs, where the participants stated an increase in their knowledge after the discussions. The willingness to use AVs increased significantly for all the related variables after the activities. More specifically, the participants disagreeing before the activities on the use AVs with known people, unknown people, and alone were fairly willing to use them after the end of the activities. Interestingly, while the participants in the FGs anticipated that using AVs would satisfy their mobility needs, the respondents to the survey showed unwillingness to use them, although their opinion evolved positively at the end of the activities. This result can be linked to the need to trust the technology first in order to use it as mentioned during the discussions. Indeed, a person may think that AVs will fit theirmobility needs, while expressing at the same time a need to be reassured in order to accept using them. Concerning the mobility and transport data sharing to improve traffic management, the participants showed a fair agreement before the activities with the statements presented to them. They would agree to share data with public authorities and international organisations, while they would disagree with other users and private companies. This reluctance towards sharing data with private companies is aligned with the FG findings and the worries expressed that are linked to their commercial use. At the same time, after the activities the level of agreement significantly increased for data sharing with public authorities, other users, and international organisations. When considering the setting in which the participants would feel comfortable in an AV, it appears that before the activities, and in line with the FGs, the participants highly agreed with the presence of a human operator inside the vehicle. They also generally agreed with the remote supervision of a human operator and disagreed with using an AV without the supervision of a human operator. However, after the whole set of activities, the attitudes towards riding with a remote supervision and without supervision increased significantly. In particular, the participants showed a slight agreement with the possibility to ride without supervision.