| 摘要 |
PCT No. PCT/EP93/00237 Sec. 371 Date Jul. 29, 1994 Sec. 102(e) Date Jul. 29, 1994 PCT Filed Feb. 2, 1993 PCT Pub. No. W093/15275 PCT Pub. Date Aug. 5, 1993.The traffic barrier used in guidance installations has a longitudinal shape and on its upper surface a first part of a coupling device. A second part is provided on a guide body coupling the same to the traffic barrier. On each end the traffic barrier is provided with parts divided from a further coupling device so that the traffic barrier can be coupled to a neighboring traffic barrier in a longitudinal direction. The traffic barrier has a cross-section wherein the outline of the side walls and the upper wall is contiguous with a circumferential curve being at least almost constant in its outline and being substantially convex in its outline but can extend linearly in a side wall area which is adjacent an under side of the barrier until encountering a point of contact of a tangent in the convex area. A step off-set relative to the circumferential curve has been provided in the area of each side wall which off-set in its lower area forms an edge at the circumferential curve and in its upper area is at least almost curved constantly and merges into the circumferential curve.
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