Dimitris Nathanael

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Overtaking maneuvers were studied in real traffic, by comparing cases where a change in the opposite traffic occurred during the overtaking maneuver i.e., appearance of an oncoming car, with cases where no change occurred during the maneuver i.e., either an already apparent oncoming car or no oncoming car. In total 45 naturally occurring cases of overtaking(More)
The paper discusses the limitations of current HCI design methods to effectively support the design of new artifacts which radically change the ecology of practice. The notions of catachresis and utilization schemes are used to describe the changing ecology of practice. The hierarchical model of shearing layers is proposed as a useful tool to support the(More)
The aim of the present paper is to contribute to the debate in the cognitive ergonomics community as for the adequacy of different approaches for the analysis of socio-technical systems in view of designing artifacts facilitating human work. Using a taxonomy of socio-technical systems as frame of reference, the theoretical origins and the main application(More)
<b>Motivation</b> --- To identify the objects/entities that determine the ontology of the motorcyclist's visual exploration activity, when driving in urban arterials. This ontology may form the basis for modelling the motorcyclists' visual activity in urban traffic as well as shed light in their interaction with automobile drivers. <b>Research approach</b>(More)
UNLABELLED The present paper is a commentary on the recently published IEA strategy for human factors/ergonomics (Dul, J., et al. (2012), A strategy for human factors/ergonomics: developing the discipline and profession. Ergonomics, 55(4), 377-395). Two main issues that demand attention are: (i) the way others understand our profession and discipline, and(More)
To design adequate measures for enhancing riders' safety, a necessary first step is to understand the riders' visual scanning strategies under different traffic conditions. This paper presents the preliminary analysis of eye tracking data collected by three riders in the Athens metropolitan area, riding along urban arterial motorways and along an undivided(More)
The present paper deals with a teaching method aiming at overcoming the difficulties of students for conceptual or abstract thinking within a course of User Centred Design. Following the hermeneutic approach a series of small in class exercises have been planned. In those exercises students are urged to brainstorm from early on with all levels of solution(More)
<b>Motivation</b> -- To enrich our understanding of the factors that influence the decision to overtake against two way traffic, and this, beyond the limitations of the human visual system in making spatiotemporal estimations. Such understanding may be valuable for the design of future adaptive aid systems. <b>Research approach</b> -- An explorative(More)
The present communication deals with the methodology of the ergonomics field intervention process. It proposes an operationalized version of work analysis in terms of contradictions. The aim is to demonstrate that such a dialectic tool and method of representation may assist the ergonomist to frame the essence of a work activity in practical terms, swiftly(More)