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Recognition of Illuminated Coloured Markers That Designate Primary and Secondary Mine Escapeways

Public Domain


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  • Personal Author:
  • Description:
    It is critical for the safety of miners to be able to escape, unaided, during a mine emergency. Self-escape is challenging in the presence of smoke that can occur during a mine emergency. To assist self-escape, coloured markers in underground mines designate the primary/secondary escapeways, but no universal colour code exists. Ten participants were tested to recognize the colour and designation (primary/secondary) of fluorescent yellow-green (FYG), yellow (Y), white (W) and green (G) escapeway markers in both a clear and smoked-filled environment. The overall misidentification rate for all colours was 1.9% and 18.1%, respectively, in clear and smoke conditions. FYG had the highest misidentification percentage for both conditions. For the marker designation tests, participants were most accurate in clear conditions (100.0%) for the FYG+W, Y+G, G+W and W+FYG combinations, and least accurate (89.6%) for the Y+FYG combination, while for smoke conditions participants were most accurate for the G+Y combination (95.8%). The overall effect of colour combination was significant, indicating that the colour combination for primary/secondary recognition is a significant factor where the G+Y combination was best. It can be inferred from these data that the colour combination is an important factor in participants' ability to recognize primary/secondary escapeway markers in smoke conditions. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Series:
  • ISSN:
    1477-1535
  • Document Type:
  • Genre:
  • Place as Subject:
  • CIO:
  • Division:
  • Topic:
  • Location:
  • Volume:
    52
  • Issue:
    8
  • NIOSHTIC Number:
    nn:20059571
  • Citation:
    Light Res Technol 2020 Dec; 52(8):959-975
  • Contact Point Address:
    JJ Sammarco, Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, Office of Mine Health and Safety Research, 626 Cochrans Mill Road, Pittsburgh, PA 15236, USA
  • Email:
    zia4@cdc.gov
  • Federal Fiscal Year:
    2021
  • Peer Reviewed:
    True
  • Source Full Name:
    Lighting Research & Technology
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:a8af84ffcb39938155b09a7a919c6abb00bf09fce5cb218ba789a1a87da94149def427005ad657ac2d1d5d6d1f876cec87457ab34cb670e9de7e6e9707d2d9ed
  • Download URL:
  • File Type:
    Filetype[PDF - 882.66 KB ]
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