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Mikael Wahlström

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Publications by Mikael Wahlström (bibliography)

2011

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Wahlström, Mikael, Salovaara, Antti, Salo, Leena and Oulasvirta, Antti (2011): Resolving Safety-Critical Incidents in a Rally Control Center. In Human Computer Interaction, 26 (1) pp. 9-37.

“Control centers in large-scale events entail heterogeneous combinations of off-the-shelf and proprietary systems built into ordinary rooms, and in this respect they place themselves in an interesting contrast to more permanent control rooms with custom-made systems and a large number of operational procedures. In this article we ask how it is possible for a control center that is seemingly so "ad hoc" in nature to achieve a remarkable safety level in the face of many safety-critical incidents. We present analyses of data collected in two FIA World Rally Championships events. The results highlight three aspects of the workers' practices: (a) the practice of making use of redundancy in technologically mediated representations, (b) the practice of updating the intersubjective understanding of the incident status through verbal coordination, and (c) the practice of reacting immediately to emergency messages even without a comprehensive view of the situation, and gradually iterating one's hypothesis to correct the action. This type of collaborative setting imposes special demands to support the practices of absorbing, translating, and manipulating incoming information.”

2010

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Wahlström, Mikael, Aittala, Miika, Kotilainen, Helinä, Yli-Karhu, Tiina, Porkka, Janne and Nykänen, Esa (2010): CAVE for collaborative patient room design: analysis with end-user opinion contrasting method. In Virtual Reality, 14 (3) pp. 197-211.

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Karvonen, Hannu, Aaltonen, Iina, Wahlström, Mikael, Salo, Leena, Savioja, Paula and Norros, Leena (2010): Unraveling metro train driver's work: challenges in automation concept. In: Proceedings of the 2010 Annual European Conference on Cognitive Ergonomics 2010. pp. 233-240.

“Motivation -- We focused on the question: "What is the significance of the train driver in the metro system?" We were especially interested in challenges related to an automation concept of a driverless metro. Research approach -- Metro train drivers' work and the metro system as a whole was examined in interview and field observation studies based on the core-task analysis method. Afterward, a mirror data workshop was organised. Findings/Design -- We describe the diversity of metro train driver's work: in addition to accelerating or braking and door opening or closing, the driver contributes to a variety of other functions in the metro system. For example, the driver maintains an awareness of the surrounding environment and facilitates communication between different actors of the system. Research limitations/Implications -- The participants for both the interview (N=12) and field observation study (N=4) were chosen in advance by the metro organisation. The small sample in the observation study might have also affected the results. Originality/Value -- Our paper analyses the role of the driver in the metro system. The results suggest that a change to a driverless system can affect the quality of service and raise safety issues. The results can be applied to automation implementations also in other domains. Take away message -- There is more to driving a metro train than meets the eye.”

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