Searched for: author:"Happee, R."
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Stapel, J.C.J. (author), Mullakkal Babu, F.A. (author), Happee, R. (author)
Driver mental underload is an important concern in the operational safety of automated driving. In this study, workload was evaluated subjectively (NASA RTLX) and objectively (auditory detection-response task) on Dutch public highways (~150km) in a Tesla Model S comparing manual and supervised automated driving with moderators automation...
conference paper 2017
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van Leeuwen, P.M. (author), de Groot, S. (author), Happee, R. (author), de Winter, J.C.F. (author)
Motorsport has developed into a professional international competition. However, limited research is available on the perceptual and cognitive skills of racing drivers. By means of a racing simulator, we compared the driving performance of seven racing drivers with ten non-racing drivers. Participants were tasked to drive the fastest possible...
journal article 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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Kyriakidis, M. (author), de Winter, J.C.F. (author), Stanton, N (author), Bellet, T. (author), van Arem, B. (author), Brookhuis, K.A. (author), Martens, MH (author), Bengler, KJ (author), Andersson, J. (author), Merat, N. (author), Reed, N. (author), Flament, M. (author), Hagenzieker, M.P. (author), Happee, R. (author)
Automated driving can fundamentally change road transportation and improve quality of life. However, at present, the role of humans in automated vehicles (AVs) is not clearly established. Interviews were conducted in April and May 2015 with 12 expert researchers in the field of human factors (HFs) of automated driving to identify...
journal article 2017
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Goncalves, J. (author), Happee, R. (author), Bengler, KJ (author)
Fatigue and drowsiness can play an important role in Conditional Automation (CA), as drowsy drivers may fail to properly recover control. In order to provide better insight in the effects of drowsy driving in Take Over Request (TOR), we designed a driving experiment that extends related literature in drowsiness research CA with self-rated...
conference paper 2016
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Wang, M. (author), Hoogendoorn, S.P. (author), Daamen, W. (author), van Arem, B. (author), Shyrokau, B. (author), Happee, R. (author)
A novel strategy to enhance string stability of autonomous vehicles with sensor delay and actuator lag is proposed based on a model predictive control framework. To compensate sensor delay, the approach entails estimating the (unknown) system state at the current time using the system state in a previous time, the applied control history and a...
journal article 2016
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Mullakkal Babu, F.A. (author), Wang, M. (author), van Arem, B. (author), Happee, R. (author)
Current Full Range Adaptive Cruise Control (FRACC) systems switch between separate adaptive cruise control and collision avoidance systems. This can lead to jerky responses and discomfort during the transition between the two control modes. We propose a Full Range Adaptive Cruise Control (FRACC) design integrating adaptive cruise control and...
conference paper 2016
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Lu, Z. (author), Happee, R. (author), Cabrall, C.D.D. (author), Kyriakidis, M. (author), de Winter, J.C.F. (author)
The topic of transitions in automated driving is becoming important now that cars are automated to ever greater extents. This paper proposes a theoretical framework to support and align human factors research on transitions in automated driving. Driving states are defined based on the allocation of primary driving tasks (i.e., lateral control,...
journal article 2016
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Nordhoff, S. (author), van Arem, B. (author), Happee, R. (author)
This paper represents a synthesis of existing empirical acceptance studies on automated driving and scientific literature on technology acceptance. The objective of this paper is to study user acceptance of driverless vehicles that fall into SAE level 4, as they operate within the constraints of dedicated infrastructure. The review indicates...
conference paper 2016
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Cabrall, C.D.D. (author), Happee, R. (author), de Winter, J.C.F. (author)
Background: Recent advances in the growing domain of automated driving suggest the need for thoughtful design of human-computer interaction strategies. For example, human drivers can process scene variability on implicit levels, but automated systems require explicit rule-based judgments of similarity and difference. What level of abstraction an...
poster 2016
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Rendon Velez, E. (author), van Leeuwen, P.M. (author), Happee, R. (author), Horvath, I. (author), van der Vegte, Wilfred (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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Shyrokau, B. (author), Loof, J. (author), Stroosma, O. (author), Wang, M. (author), Happee, R. (author)
The steering behaviour in a driving simulator has a significant influence on a driving realism. This study investigates the influence of the complexity of a steering-system model on the subjective assessment of truck steering feel in on-centre handling. Ten subjects drove a highway task with and without lateral wind disturbance with 4 steering...
conference paper 2015
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De Bruijn, E. (author), Van der Helm, F.C.T. (author), Happee, R. (author)
Background: Musculoskeletal models served to analyze head–neck motion and injury during automotive impact. Although muscle activation is known to affect the kinematic response, a model with properly validated muscle contributions does not exist to date. The goal of this study was to enhance a musculoskeletal neck model and to validate passive...
journal article 2015
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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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Osth, J. (author), Eliasson, E. (author), Happee, R. (author), Brolin, K. (author)
Human body models (HBMs) for vehicle occupant simulations have recently been extended with active muscles and postural control strategies. Feedback control has been used to model occupant responses to autonomous braking interventions. However, driver postural responses during driver initiated braking differ greatly from autonomous braking. In...
journal article 2014
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Forbes, P.A. (author), Dakin, C.J. (author), Geers, A.M. (author), Vlaar, M.P. (author), Happee, R. (author), Siegmund, G.P. (author), Schouten, A.C. (author), Blouin, J.S. (author)
Electrical vestibular stimulation is often used to assess vestibulo-motor and postural responses in both clinical and research settings. Stochastic vestibular stimulation (SVS) is a recently established technique with many advantages over its square-wave counterpart; however, the evoked muscle responses remain relatively small. Although the...
journal article 2014
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De Winter, J.C.F. (author), Happee, R. (author)
Concerns exist within the medical and psychological sciences that many published research findings are not replicable. Guidelines accordingly recommend that the file drawer effect should be eliminated and that statistical significance should not be a criterion in the decision to submit and publish scientific results. By means of a simulation...
journal article 2013
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Van Drunen, P. (author), Maaswinkel, E. (author), Van der Helm, F.C.T. (author), Van Dieën, J.H. (author), Happee, R. (author)
Motor control deficits have been suggested as potential cause and/or effect of a-specific chronic low-back pain and its recurrent behavior. Therefore, the goal of this study is to identify motor control in low-back stabilization by simultaneously quantifying the intrinsic and reflexive contributions. Upper body sway was evoked using continuous...
journal article 2013
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Forbes, P.A. (author), Happee, R. (author), Van der Helm, F.C.T. (author), Schouten, A.C. (author)
Force and position perturbations are widely applied to identify muscular and reflexive contributions to posture maintenance of the arm. Both task instruction (force vs. position) and the inherently linked perturbation type (i.e., force perturbations-position task and position perturbations-force tasks) affect these contributions and their mutual...
journal article 2011
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Happee, R. (author)
doctoral thesis 1992
Searched for: author:"Happee, R."
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