| 摘要 |
Long elements (1/4) connected together by linkage means characterized in that it is composed of elements of low height called "low" (1/11) connected by their ends (1e/1f), which include means (1e1/1e2-1f1/1f2) for receiving hollow assembly members (2) designed to be able to fix signalling beacons (3) therein, which low elements (1), being designed to be able to be surmounted by other complementary elements (4) substantially of the same length but of greater height, called "high", the ends (4d/4e) of which include means for assembling them with the said beacons (3) for the purpose of forming, in the latter configuration, a safety (crash) barrier for separating lanes (carriageways). <IMAGE> |
