Samenvatting
The recognition range of a number of existing advance warning triangles was measured in field experiments under practical conditions with dipped headlights by night and at twilight, as well as by day.
The recognition range of a number of existing advance warning triangles was measured in field experiments under practical conditions with dipped headlights by night and at twilight, as well as by day.
Soesterberg, Instituut voor Zintuigfysiologie IZF TNO TM, 1967, 18 p.
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