| 摘要 |
<p>A visual signalling device for traffic lanes, including at least one signalling strip (11) having on at least one side thereof a series of projecting portions (14) arranged sequentially in the longitudinal direction of the strip and extending transversely thereto, said projections (14) being separated by spaces (18) which are open sideways relative to the strip, and defining a series of plane surfaces arranged in at least two series of plane surfaces (15,16) arranged alternately and having different colours. Two adjacent surfaces belonging to respective series face in opposite directions relative to a mid-plane transversal to said strip, whereby, when the strip is observed from the side at an angle of incidence smaller than a predetermined value, the plane surfaces of only one of said series may be seen.</p> |
