Use of the visual range of detection to estimate effective sweep width for land search and rescue based on 10 detection experiments in North America.

Koester, Robert J., Chiacchia, Kenneth B, Twardy, Charles R, Cooper, Donald C, Frost, John R and Robe, R Quincy (2014) Use of the visual range of detection to estimate effective sweep width for land search and rescue based on 10 detection experiments in North America. Wilderness & Environmental Medicine, 25(2), pp. 132-142. ISSN (print) 1545-1534

Official URL: http://dx.doi.org/10.1016/j.wem.2013.09.016

Abstract

Although additional experiments are required for the medium- and low-visibility search objects and in the dry-domain ecoregion, we suggest search planners use the following correction factors to convert field-measured Rd to an estimate of the effective sweep width (W): high-visibility W = 1.8 × Rd; medium-visibility W = 1.6 × Rd; and low-visibility W = 1.1 × Rd.

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