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Zhang, Bo (author), Lu, Z. (author), Happee, R. (author), de Winter, J.C.F. (author), Martens, Marieke (author)In the context of automated driving, a monitoring request (MR) is a means to prepare drivers for a take-over event. However, driver compliance may be an issue because not all MRs require a take-over. In this study, we investigated how drivers’ compliance with MRs was associated with previously experienced scenarios. The compliance level was...conference paper 2019
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van Leeuwen, P.M. (author), Happee, R. (author), de Winter, J.C.F. (author)Novice drivers tend to direct their gaze to the road ahead and not scan the environment properly. This study investigated the training effectiveness of a visual search task in a driving simulator, aimed at increasing young drivers' spread of visual search. Two groups of inexperienced drivers were instructed to drive as accurately as possible in...conference paper 2013
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Manca, L. (author), de Winter, J.C.F. (author), Happee, R. (author)This paper presents the results of a literature survey on visual displays used in automated driving. We describe six visual display designs: (1) a display with three main components, (2) a bird’s-eye view display, (3) an informative speedometer, (4) a head-up display, (5) eye-catching lights for informing, and (6) eye-catching lights for guiding...conference paper 2015
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Cabrall, C.D.D. (author), de Winter, J.C.F. (author), Happee, R. (author)A majority (95%) of crashes can be attributed to humans, with the highest cause category (41%) involving errors of recognition (i.e., inattention, distraction, inadequate surveillance) [1]. Driving safety research often claims that as much as 90% of the information that drivers use is visual. However, these claims have been hampered by a lack of...conference paper 2017
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Lee, O.Z.A. (author), Dialynas, G. (author), de Winter, J.C.F. (author), Happee, R. (author), Schwab, A.L. (author)Recent years have seen an increase in cycling as a transport mode in urban centers. This has spurred an interest in the use of bicycle simulators to study cyclist behavior [1, 2, 3, 4]. However, few implement a model based approach that couples the bicycle roll and steer in a realistic manner [5]. Balancing is a key task in cycling and we aimed...conference paper 2017
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Tabone, W. (author), Lee, Yee Mun (author), Merat, Natasha (author), Happee, R. (author), de Winter, J.C.F. (author)The future urban environment may consist of mixed traffic in which pedestrians interact with automated vehicles (AVs). However, it is still unclear how AVs should communicate their intentions to pedestrians. Augmented reality (AR) technology could transform the future of interactions between pedestrians and AVs by offering targeted and...conference paper 2021
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Bazilinskyy, P. (author), Bijker, Laurens (author), Dielissen, Tim (author), French, Shin (author), Mooijman, Tom (author), Peters, Luka (author), Happee, R. (author), Dodou, D. (author), de Winter, J.C.F. (author)This study is the third iteration in a series of studies aimed to develop a system that allows driving blindfolded. We used a sonification approach, where the predicted angular error of the car 2 seconds into the future was translated into spatialized beeping sounds. In a driving simulator experiment, we tested with 20 participants whether a...conference paper 2019
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van Leeuwen, P.M. (author), Happee, R. (author), de Winter, J.C.F. (author)Previous research has shown that novice drivers have underdeveloped vehicle control skills and visual search strategies that differ from those of experienced drivers. However, little is known about how novices’ driving performance and gaze behavior jointly change over the course of practice. In this paper, we investigated changes in driving...conference paper 2015
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Cabrall, C.D.D. (author), Sheridan, T.B. (author), Prevot, T (author), de Winter, J.C.F. (author), Happee, R. (author)Human factors researchers are well familiar with Sheridan and Verplank’s (1978) ‘levels of automation’. Although this automation dimension has proved useful, the last decade has seen a vast increase of automation in different forms, especially in transportation domains. To capture these and future developments, we propose an extended automation...conference paper 2018
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Lu, Z. (author), Happee, R. (author), de Winter, J.C.F. (author)This study presents a numerical model that describes the dynamic process of building situation awareness after an automation-initiated transition. The model predicts the level of situation awareness as a function of elapsed time since the transition, and is verified using data from an experiment in which participants watched animated video...conference paper 2017
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Dreger, F.A. (author), de Winter, J.C.F. (author), Shyrokau, B. (author), Happee, R. (author)Merging sections are challenging for drivers of heavy goods vehicles. Visual support for merging was evaluated in a simulator. Experiment 1 tested HMIs that provided participants (n = 5) driving on the on-ramp with a top view or various forms of speed advice for accelerating behind or in front of a truck platoon on the freeway. Experiment 2...conference paper 2019
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van Leeuwen, P.M. (author), Landman, Renske (author), Buning, Lejo (author), Heffelaar, Tobias (author), Hogema, Jeroen (author), van Hemert, J.M. (author), de Winter, J.C.F. (author), Happee, R. (author)Driver distraction is a leading cause of crashes. The introduction of in-vehicle technology in the last decades has added support to the driving task. However, in-vehicle technologies and handheld electronic devices may also be a threat to driver safety due to information overload and distraction. Adaptive in-vehicle information systems may...conference paper 2016
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Nordhoff, S. (author), de Winter, J.C.F. (author), Payre, William (author), van Arem, B. (author), Happee, R. (author)In the future, automated shuttles may provide on-demand transport and serve as feeders to public transport systems. However, automated shuttles will only become widely used if they are accepted by the public. This paper presents results of an interview study with 30 users of an automated shuttle on the EUREF (Europäisches Energieforum) campus in...journal article 2019
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van Leeuwen, P.M. (author), Gómez i Subils, C (author), Ramon Jimenez, A (author), Happee, R. (author), de Winter, J.C.F. (author)Technological developments have led to increased visual fidelity of driving simulators. However, simplified visuals have potential advantages, such as improved experimental control, reduced simulator discomfort and increased generalisability of results. In this driving simulator study, we evaluated the effects of visual fidelity on driving...journal article 2015
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Katzourakis, D. (author), de Winter, J.C.F. (author), Alirezaei, M. (author), Corno, M. (author), Happee, R. (author)This paper presents a driving simulator experiment, which evaluates a road-departure prevention (RDP) system in an emergency situation. Two levels of automation are evaluated: 1) haptic feedback (HF) where the RDP provides advisory steering torque such that the human and the machine carry out the maneuver cooperatively, and 2) drive by wire (DBW...journal article 2014
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Rendon Velez, E. (author), van Leeuwen, P.M. (author), Happee, R. (author), Horvath, I. (author), van der Vegte, Wilhelm Frederik (author), de Winter, J.C.F. (author)Speeding because of time pressure is a leading contributor to traffic accidents. Previous research indicates that people respond to time pressure through increased physiological activity and by adapting their task strategy in order to mitigate task demands. In the present driving simulator study, we investigated effects of time pressure on...journal article 2016
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Saffarian, M (author), de Winter, J.C.F. (author), Happee, R. (author)A car-following assisting system named the rear window notification display (RWND) was developed, with the aim of improving a driver's manual car-following performance. The RWND presented lead-car acceleration and time headway (THW) (i.e., intervehicle distance divided by the speed of the following car) on the rear window of a lead car, which...journal article 2013
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Kyriakidis, M. (author), Happee, R. (author), de Winter, J.C.F. (author)This study investigated user acceptance, concerns, and willingness to buy partially, highly, and fully automated vehicles. By means of a 63-question Internet-based survey, we collected 5000 responses from 109 countries (40 countries with at least 25 respondents). We determined cross-national differences, and assessed correlations with personal...journal article 2015
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Nordhoff, S. (author), de Winter, J.C.F. (author), Madigan, Ruth (author), Merat, Natasha (author), van Arem, B. (author), Happee, R. (author)Automated shuttles are now in a prototyping phase in several research projects. However, there is still a paucity of knowledge on the acceptance of these shuttles. This paper presents the results of a questionnaire study among individuals (n = 384) who physically experienced an automated shuttle on an office campus in Berlin-Schöneberg. The...journal article 2018
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Dreger, F.A. (author), de Winter, J.C.F. (author), Happee, R. (author)Freeway merging of heavy goods vehicles (HGV) is a safety–critical manoeuvre. However, at present, it is largely unknown how HGV drivers perceive and execute the merging manoeuvre, and how current advanced driver support and automation systems (ADAS) contribute. We performed semi-structured in-depth interviews with 15 HGV drivers to assess...journal article 2019