Validity of the Holmes–Wright lantern as a color vision test for the rail industry

Abstract

A simulated field test was designed to determine whether the Holmes-Wright A lantern (HWA) is a valid color vision test for the rail industry. The simulation replicated viewing rail signal lights at 0.8 km distance under daylight conditions. Using the worst-normal as the maximum number of allowable errors on the simulation, 94% of the color-defectives… (More)
DOI: 10.1016/S0042-6989(98)00054-6

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