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van Loon, R.J. (author), Brouwer, R.F.T. (author), Martens, M.H. (author)Internationally, drowsy driving is associated with around 20% of all crashes. Despite the development of different detection methods, driver drowsiness remains a disconcerting public health issue. Detection methods can estimate drowsiness by directly measuring the physiology of the driver, or they can measure the effect that drowsiness has on...article 2015
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Kastelein, R.A. (author), Hoek, L. (author), Gransier, R. (author), de Jong, C.A.F. (author), Terhune, J.M. (author), Jennings, N. (author)Acoustic Mitigation Devices (AMDs) are used to deter marine mammals from construction sites, in order to prevent hearing injury by offshore pile driving noise. To estimate the distance at which two AMDs designed as ‘seal scarers’ (Ace Aquatec and Lofitech) are detected by harbor porpoises, the 50% hearing detection thresholds for playbacks of...article 2015
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Willemsen, D.M.C. (author), Stuiver, A. (author), Hogema, J. (author)Many car companies and other organisations are working hard to get automated driving on the road. Where some prefer driverless cars, most foresee a future where control of the vehicle will be shared between the driver and automated functions in the coming years. Sharing tasks and responsibilities creates the interesting challenge of transition...conference paper 2015
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Hiemstra-van Mastrigt, S. (author), Kamp, I. (author), van Veen, S.A.T. (author), Vink, P. (author), Bosch, T. (author)New technologies have led to an increasingly sedentary lifestyle. Sedentary behaviour is characterised by physical inactivity and is associated with several health risks. This excessive sitting does not only take place in the office or at home, but also during daily commute. Therefore, BMW AG developed an active seating system for the back seat...article 2015
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Duivenvoorden, K. (author), Hogema, J. (author), Hagenzieker, M. (author), Wegman, F. (author)Methods: An experiment was conducted in a moving-base driving simulator. Thirty participants completed 3 runs each in 3 conditions: a baseline, a plateau, and a chicane condition. Participants drove an 80 km/h rural distributor road with 8 intersections. Eight cyclist scenarios were developed varying in the number of cyclists and the direction...article 2015
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Balau, A.E. (author), Kooijman, D. (author), Vazquez Rodarte, I. (author), Ligterink, N. (author)This paper presents a methodology and tool that stochastically generates drive cycles based on measured data, with the purpose of testing and benchmarking light duty vehicles in a simulation environment or on a test-bench. The WLTP database, containing real world driving measurements, was used as input data. Consequently cycles that contain...article 2015
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Kooijman, D.G. (author), Balau, A.E. (author), Wilkins, S. (author), Ligterink, N. (author), Cuelenaere, R. (author)European light duty vehicle emission legislation is gradually shifting the focus from test procedures with merely static test cycles, towards procedures including Real Driving Emissions (RDE), as they are a mean to achieve the European (NOx) emission reduction target. Hence a RDE trip must represent European driving behavior, such that «real...conference paper 2015
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Meijer, R.J. (author), Cushing, R. (author), de Laat, C. (author), Jackson, P. (author), Klous, S. (author), Koning, R. (author), Makkes, M.X. (author), Meerwijk, A. (author)In the invited talk 'Car2x with SDN, NFV and supercomputers' we report about how our past work with SDN [1, 2] allows the design of a smart mobility fieldlab in the huge parking lot the Amsterdam Arena. We explain how we can engineer and test software that handle the complex conditions of the Car2X case. The talk starts by describing the...conference paper 2015
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Ainslie, M.A. (author), Dahl, P.H. (author), de Jong, C.A.F. (author), Laws, R.M. (author)Geometrical spreading laws are widely used in underwater acoustics because they provide - if chosen carefully - an accuracy that is sufficient for many applications (source characterisation, impact assessment, sound mapping, regulation) for negligible computation time. The simplest and most widely used form is that corresponding to spherical...conference paper 2014
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Willemsen, D.M.C. (author), Stuiver, A. (author), Hogema, J. (author), Kroon, L. (author), Sukumar, P. (author)There is a trend in Advanced Driver Assistance systems towards increased automation. Current systems and near-future systems will not yet be able to deal with all different situations that can be encountered and therefore need to share control of the vehicle with the driver. To safely and comfortably share control, a method for the transition of...conference paper 2014
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Risto, M. (author), Martens, M.H. (author)Driving simulators have become an established tool in driver behaviour research by offering a controllable, safe and cost-effective alternative to real world driving. A challenge for using driving simulators as a research tool has been to elicit driving behaviour that equals real world driving. With respect to driver headways few studies have...article 2014
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de Winter, J.C.F. (author), Happee, R. (author), Martens, M.H. (author), Stanton, N.A. (author)Adaptive cruise control (ACC), a driver assistance system that controls longitudinal motion, has been introduced in consumer cars in 1995. A next milestone is highly automated driving (HAD), a system that automates both longitudinal and lateral motion. We investigated the effects of ACC and HAD on drivers' workload and situation awareness...article 2014
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Gelinck, G.H. (author), van der Steen, J.L. (author), Tripathi, A.K. (author), Ellis, T. (author), Akkerman, H. (author), van Leuken, L. (author), Li, F. (author), Maas, J. (author), Smits, E. (author), Rovers, M. (author), Nag, M. (author), Myny, K. (author), Malinowski, P. (author), Ameys, M. (author), Ke, T.H. (author), Schols, S. (author), Steudel, S. (author), Genoe, J. (author), Heremans, P. (author)In this paper, we present some of the technology challenges and process temperature trade-offs when realizing AM OLED displays on thin flexible plastic films that can be mechanically bent to a roll radius of ∼1 cm. We furthermore present complementary approaches to realize low-power, high resolution OLED displays using self-aligned IGZO TFT...conference paper 2014
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- van Rooij, L. (author), Sukumar, P. (author), Kroon, L. (author), Bijlsma, T. (author), Hogema, J. (author) conference paper 2014
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Wilschut, E.S. (author), Kroon, E.C.M. (author), de Goede, M. (author), Cremers, A.H.M. (author), Hoedemaeker, D.M. (author)The number of older road users is getting increasingly larger in Europe. Therefore policy makers pay more attention to the abilities and limitations of this group of road users. Providing accessible and comfortable assistance and safety functions for mobility is a key challenge in the objective of extending autonomy, independency, safety and a...conference paper 2014
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Risto, M. (author), Martens, M.H. (author)With specific headway instructions drivers are not able to attain the exact headways as instructed. In this study, the effects of discrete headway feedback (and the direction of headway adjustment) on headway accuracy for drivers carrying out time headway instructions were assessed experimentally. Two groups of each 10 participants (one...article 2014
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Risto, M. (author), Martens, M.H. (author)Purpose: In-car support systems focus increasingly on improving traffic flow and throughput. Advisory systems allow for fast market penetration, advising drivers how to drive in order to improve general flow. By following the advice, drivers cannot create a beneficial effect by themselves but rely on other road users to comply as well. Drivers...article 2014
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Nijhof, M.J.J. (author), Binnerts, B. (author), de Jong, C.A.F. (author), Ainslie, M.A. (author)Modelling the sound levels in the water column due to pile driving operations nearby and out to large distances from the pile is crucial in assessing the likely impact on marine life. Standard numerical techniques for modelling the sound radiation from mechanical structures such as the finite element (FE) and boundary element method are not well...conference paper 2014
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van Nunen, E. (author), Morales Medina, A. (author), Nijmeijer, H. (author)A Cooperative Adaptive Cruise Control (CACC) system normally consists of different operation modes such as CC (in case no object is detected), ACC and/or CACC. The objective of this study is to find a method for control reconfiguration which ensures a stable, safe and comfortable switching between these operation modes. The approach of mixing...conference paper 2014
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Bolle, L. (author), de Jong, C.A.F. (author), Bierman, S.M. (author), van Beek, P.J.G. (author), Wessels, P.W. (author), Blom, E. (author), van Damme, C.J.G. (author), Winter, H.V. (author), Dekeling, R.P.A. (author)In view of the rapid extension of offshore wind farms, there is an urgent need to improve our knowledge on possible adverse effects of underwater sound generated by pile-driving. Mortality and injuries have been observed in fish exposed to loud impulse sounds, but knowledge on the sound levels at which (sub-)lethal effects occur is limited,...conference paper 2013