We present the results of a study evaluating the suitability of an inexpensive eye-tracking device for the enhancement of user experience evaluations. Ensuring a comfortable user experience is an important part of the mobile application design process. Evaluation of user experience is usually done through questionnaires and interviews, but it can be improved using eye tracking sensors for user experience studies. We conducted a user experience study of DriveGreen, a mobile application devoted to ecodriving for a transition to a low-carbon society. We used an inexpensive eye-tracking device in addition to standard User Experience Questionnaire and Single Ease Question questionnaires. The results show that the inexpensive eye-tracking device data correlate with data from User Experience Questionnaire and Single Ease Question questionnaires and interviews with users. We conclude that an enhancement of user experience evaluations with inexpensive eye-tracking device is possible.

The paper evaluates the DARS Traffic Plus mobile application within a realistic driving simulator environment to assess its impact on driving safety and user experience, particularly focusing on the Cooperative Intelligent Transport Systems (C-ITS). The study is positioned within the broader context of integrating mobile technology in vehicular environments to enhance road safety by informing drivers about potential hazards in real time. A combination of experimental methods was employed, including a standardised user experience questionnaire (meCUE 2.0), measuring quantitative driving parameters and eye-tracking data within a driving simulator, and post-experiment interviews. The results indicate that the mobile application significantly improved drivers’ safety perception, particularly when notifications about hazardous locations were received. Notifications displayed at the top of the mobile screen with auditory cues were deemed most effective. The study concludes that mobile applications like DARS Traffic Plus can play a crucial role in enhancing road safety by effectively communicating hazards to drivers, thereby potentially reducing road accidents and improving overall traffic safety. Screen viewing was kept below the safety threshold, affirming the app’s efficacy in delivering crucial information without distraction. These findings support the integration of C-ITS functionalities into mobile applications as a means to augment older vehicle technologies and extend the safety benefits to a broader user base.

Mobile phone use can distract drivers; however, mobile applications may also improve safety by delivering timely traffic and cooperative intelligent transport system warnings. This pilot study evaluated the user experience of the DARS Traffic Plus (DT+) mobile application and examined simulator sickness and affective burden during its use in a professional driving simulator. Thirty-nine participants were recruited and thirty-three completed all scenarios in a within-subject, counterbalanced design. Following a familiarization scenario, participants completed two comparable driving scenarios: one without DT+ support (S1) and one with DT+ support (S2). User experience was assessed using the User Experience Questionnaire (UEQ), the meCUE 2.0 questionnaire based on the component model of user experience, and a post-interview, while simulator sickness and participant state were measured using the Simulator Sickness Questionnaire (SSQ), Fast Motion Sickness Scale (FMS), and Positive and Negative Affect Schedule (PANAS), complemented by exploratory eye-tracking observations. Both UEQ and meCUE 2.0 indicated positive user experience, with generally higher ratings in scenario S2 using the DT+ mobile application. UEQ showed a significant difference for Perspicuity, and meCUE 2.0 showed significantly higher scores for usefulness, visual aesthetics, commitment, intention to use, product loyalty, and overall evaluation. SSQ and FMS showed that simulator sickness effects occurred in a subset of participants. PANAS revealed no significant change in positive affect, while negative affect decreased significantly by the end of the evaluation. The findings suggest that DT+ was positively experienced in the simulator setting and that combining user experience measures with sickness monitoring is useful in simulator-based evaluation of driving-related mobile applications.