Seguridad en la circulación en el metro

• Autores: Ramón L. Mancisidor del Río
• Localización: Revista A.I.T., ISSN 0378-3294, Nº. 43, 1981, págs. 38-53
• Idioma: español
• Títulos paralelos:
  • Metro traffic safety
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• Resumen

  • The subject of this article is to expose the concepts and safety measures used by metropolitan railways, which are a mean of transport that have their own safety characteristics.

    In first place, it deals with the idea of safe transport, defining the ratios used for this purpose, just as: number of injured passengers (grave and slight ones) per million of passengers and per million of coaches-km; chance-factor; collective (oruo) accident; recurrence of accidents in a period; etc. Besides, some statistics of accidents in Paris and Madrid metros are enclosed.

    Next, the method for analyzing the safety, as well as the ways of actuating about it, are exposed. In this sense, the actuation criteria could be classified in: measures preventing the production of accident causes; correction measures, once that the cause has been produced; measures diminishing the consequences; measures that prevent collective panic, and assistance measures.

    The analysis of the mean accident accuses can be summarized as follows: train collision (impact, impact with obstacles), derailment of trains, burnings, suffocation, and other causes. These, in its turn, can be separated into more elementary ones, and so on, till the individual element (v.g., signal relay) originating the failure is reached.

    Next, some concepts about safety are analysed, which are applicable to the measures that are necessary to prevent accidents. Thues, the safety by redundancy, the fixation of reliability values, the relationship between safety and reliability as well as its “in situ” corroboration.

    The most important methods arranged by metropolitan railways in order to prevent accidents are described, relating to the rolling stock, to the track, to the safety and automatic train operation, to the detection of power supply failures, etc.

    Finally, among the complementary safety measures to be considered, there are those for emergency situations; the maintenance of the rolling stock and line equipment and the training of the railroad staff.