the installation for lighting of fund in road tunnels.for the perception of the mapping for the detection of obstacles along the track and includes at least one row of light points (31) substantially aligned on one or each of theup in the gallery, which define the mapping of the same while the interruption points of a line indicates "negative" in the presence of an obstacle, which causes the interruption.the bright spots are species fed by laser light (fig. 1).
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