Modeling operations of warning railroad workers by station duty officers
DOI:
https://doi.org/10.15587/1729-4061.2014.31353Keywords:
warning, station duty officer, railroad workers, functional-semantic network, modeling, mathematical expectation, warning probabilityAbstract
Existing safety technologies of works on the railroad tracks oblige the station duty officer to warn railroad workers about all movements of rolling stock through the working space. However, the information load on the human operator is sometimes such that the station duty officer can not timely transfer this type of messages.
Therefore, the aim of the paper is to obtain quantitative values of probability of timely fulfillment of the operation of warning railroad workers and passengers.
To achieve this goal, the problem of constructing a model of operation of notifying railroad workers and passengers by the station duty officer, as well as obtaining the relationships among the probability of timely fulfillment of the operation, psychophysiological state of the operator and the number of crews on the tracks were solved. For this purpose, a functional-semantic network was developed and modeling of the operation of warning railroad workers and passengers by the station duty officer was performed.
As a result of the modeling, it was found that the probability of timely fulfillment of the operation does not meet the standards in the case of both the deterioration of the psychophysiological state of the station duty officer, and increase in the number of concurrently working crews.
The studies can be used for decision-making on the allocation of warning functions between the station duty officer and control system.
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Copyright (c) 2014 Сергій Олексійович Змій, Володимир Петрович Мороз, Роман Володимирович Турчинов
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