Citation

Blank VLG, Laflamme L, Diderichsen F, Andersson R. J. Saf. Res. 1998; 29(4): 263-273.

Copyright

(Copyright © 1998, U.S. National Safety Council, Publisher Elsevier Publishing)

DOI

10.1016/S0022-4375(98)00052-8

PMID

unavailable

Abstract

This study is concerned with the longitudinal representation of injury risk obtained using alternative injury-rate denominators-hours worked and production volume. It investigates injury risks at the underground extraction phase in a Swedish iron-ore mine. Six stages of mining development are defined, and three risk measures are employed: average injury rates (AIRs) by stage, injury rate ratios (IRRs) by stage, and annual injury rates (AnIRs). The two denominators give a quite different representation of injury risk at the early stages of the development of the mine, but tend increasingly to provide a similar picture (similar ratios) at later stages. It is concluded that automated production processes, as opposed to mechanized ones, tend to make hours worked and production volume interchangeable denominators. Choice of appropriate denominator may depend upon whether the individual or the production process is in focus.

Language: en