Searched for: author:"Happee, R."
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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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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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Mullakkal Babu, F.A. (author), Wang, M. (author), Farah, H. (author), van Arem, B. (author), Happee, R. (author)
Safety measurement and analysis have been a challenging and well-researched topic in transportation. Conventionally, surrogate safety measures have been used as safety indicators in simulation models for safety assessment, in control formulations for driver assistance systems, and in data analysis of naturalistic driving studies. However,...
conference paper 2017
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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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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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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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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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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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Schwab, A.L. (author), Dialynas, G. (author), Happee, R. (author)
The bicycle, being unstable at low speed and marginally stable at high speed, is sensitive to lateral perturbations. One of the major lateral perturbations is crosswind, which can lead to accidents and fatalities. Here we investigate the effect of crosswind on the lateral dynamics and control of the bicycle in a wide range of forward speeds and...
conference paper 2018
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Happee, R. (author)
doctoral thesis 1992
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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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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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Happee, R. (author), de Bruijn, E. (author), Forbes, P.A. (author), van der Helm, F.C.T. (author)
The human head-neck system requires continuous stabilization in the presence of gravity and trunk motion. We investigated contributions of the vestibulocollic reflex (VCR), the cervicocollic reflex (CCR), and neck muscle co-contraction to head-in-space and head-on-trunk stabilization, and investigated modulation of the stabilization strategy...
journal article 2017
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Forbes, P.A. (author), de Bruijn, E. (author), Nijmeijer, SWR (author), Koelman, JHTM (author), van der Helm, F.C.T. (author), Schouten, A.C. (author), Tijssen, MAJ (author), Happee, R. (author)
Background Effective sensorimotor integration is essential to modulate (adapt) neck stabilization strategies in response to varying tasks and disturbances. This study evaluates the hypothesis that relative to healthy controls cervical dystonia patients have an impaired ability to modulate afferent feedback for neck stabilization with changes...
journal article 2017
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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 Bruijn, E. (author), Nijmeijer, SWR (author), Forbes, P.A. (author), Koelman, JHTM (author), van der Helm, F.C.T. (author), Tijssen, MAJ (author), Happee, R. (author)
Objective
To identify effects of a deviant motor drive in the autospectral power of dystonic muscles during voluntary contraction in cervical dystonia patients.
Methods
Submaximal (20%) isometric head-neck tasks were performed with the head fixed, measuring surface EMG of the sternocleidomastoid, splenius capitis and semispinalis...
journal article 2017
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Gil, Gustavo (author), Savino, Giovanni (author), Piantini, Simone (author), Baldanzini, Niccolò (author), Happee, R. (author), Pierini, Marco (author)
Objective: Motorcycle riders are involved in significantly more crashes per kilometer driven than passenger car drivers. Nonetheless, the development and implementation of motorcycle safety systems lags far behind that of passenger cars. This research addresses the identification of the most effective motorcycle safety solutions in the...
journal article 2017
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Happee, R. (author), Gold, Christian (author), Radlmayr, Jonas (author), Hergeth, Sebastian (author), Bengler, Klaus (author)
We investigated after effects of automation in take-over scenarios in a high-end moving-base driving simulator. Drivers performed evasive manoeuvres encountering a blocked lane in highway driving. We compared the performance of drivers 1) during manual driving, 2) after automated driving with eyes on the road while performing the cognitively...
journal article 2017
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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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van Dieën, Jaap H. (author), van Drunen, P. (author), Happee, R. (author)
Trunk stabilization is required to control posture and movement during daily activities. Various sensory modalities, such as muscle spindles, Golgi tendon organs and the vestibular system, might contribute to trunk stabilization and our aim was to assess the contribution of these modalities to trunk stabilization. In 35 healthy subjects, upper...
journal article 2017
Searched for: author:"Happee, R."
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