The subjects (participants) evaluated various setting positions while performing tasks on PCs in a train simulator. The simulation results indicated ideal lengths, positioning, and an optimum range for seat table adjustability. The importance of providing adequate table space between PC and its user was also confirmed.

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The purpose of this research is to identify situations where a driver is unable to perform tasks properly because of psychological stress, etc., and devise means to help them. Basic research began with the aim of developing a technology to gauge the mental state of without relying on subjective evaluation of drivers, such as physiological indices and behavioral data. A system that can measure various physiological and behavioral data including electroencephalograms (EEG) was constructed. As a result of experimenting with the system, it was found that the occurrence and recovery of psychological sway appeared in physiological changes such as EEG and pupil diameter.

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To develop a more suitable method of evaluating ride comfort of high speed trains, a fundamental study was conducted on sensitivity of passengers to various frequencies of vibration with respect to ride comfort. Experiments were performed on 55 subjects using an electrodynamic vibration system that can generate vibrations in the frequency range of 1 to 80 Hz in the vertical direction. Results of experiments indicated that the subjects tend to experience greater discomfort when exposed to high frequency vibrations than that presumed by the conventional Japanese ride comfort assessment method, the "Ride Comfort Level."