A traffic aid apparatus to be used under conditions of low visibility

摘要

The invention concerns an apparatus (3) to be used as an aid for traffic when visibility is bad, consisting basically of a plurality of laser units (4) each emitting a beam of laser light at a frequency within the visible light spectrum and installed at regular intervals along at least one side (2) of a section of carriageway (1); the light from each laser unit (4) being emitted roughly in the direction of one of the other two nearest laser units.