Journal of Japan Society for Safety Engineering
Online ISSN : 2424-0656
Print ISSN : 0570-4480
ISSN-L : 0570-4480
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Volume 59, Issue 2
JOURNAL OF JAPAN SOCIETY FOR SAFETY ENGINEERING_2020_2
Displaying 1-13 of 13 articles from this issue
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PROPOSAL FOR SAFETY
REVIEW
ORIGINAL PAPER
  • Characteristics of Manipulations by Railway Drivers who had made Train Stop Position Error at Station - Consideration based on Driving Performance Data-
    Daisuke Suzuki, Ayako Suzuki, Keiko Shimano, Kazuki Kiyota, Yutaka Kak ...
    2020 Volume 59 Issue 2 Pages 83-91
    Published: April 15, 2020
    Released on J-STAGE: April 15, 2020
    DOIhttps://doi.org/10.18943/safety.59.2_83
    JOURNAL FREE ACCESS
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    This study aims to clarify the characteristics of manipulations by railway drivers who had made a train stop position error at a station. Driving performance data by 156 drivers at one train crew depot of a railway company over a period of two months was analyzed. The “expert” group comprised 10 drivers, who were instructors of trainees, and selected by a manager of the train crew depot. The “error” group included 17 drivers who had made a train stop position error at a station in the previous seven months. Evaluation indices were（1）Train velocity at a fixed point when stopping,（2）Number of brake notch changes when stopping, and（3）Additional brake notches when stopping. The mean and standard deviation of the evaluation indices by each driver were analyzed. We conducted t-test and chi-square test. The findings revealed that the characteristics of manipulations by the error group were followings. Dispersion of manipulations and velocities by each driver were large. There were a lot of outliers from distribution of the train velocity. There were a lot of use of additional brake notches.

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  • Evacuation Intention of Nearby Residents in Case of Toxic Gas Release at a Chemical Plant
    Bongchan Kim, Yusuke Koshiba, Hideo Ohtani
    2020 Volume 59 Issue 2 Pages 92-102
    Published: April 15, 2020
    Released on J-STAGE: April 15, 2020
    DOIhttps://doi.org/10.18943/safety.59.2_92
    JOURNAL FREE ACCESS
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    The purposes of this study are to investigate the factors affecting evacuation intension of residents who live around chemical plants in case of toxic gas release. In this study, a questionnaire survey was conducted to respondents（n ＝784）who live in Kawasaki city. We extracted five factors using explanatory factor analysis, and the factors were named as “Environmental status”, “Knowledge”, “Fear of toxic gas”, “Fear of chemical plant”, and “Subjective norm”. Correlation analysis showed that the factors, except for the Knowledge factor, were correlated with each other, and the Knowledge factor was correlated with only the Fear of toxic gas factor. A multiple regression analysis revealed that the evacuation intention of participants depends on the three latent factors（i.e., Environmental status, Subjective norm, Fear of toxic gas）, two independent variables（i.e., administrative estimate about evacuation, irksomeness evacuation）, and three demographic variables（i.e., age, living with child（ren）, number of vulnerable people）.

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