| 摘要 |
A portable speed restriction hump 7 for placing or securing on a road surface comprises at least one hollow or solid block 1 (e.g. of rubber, plastics, wood or concrete) having a flat base and a curved upper surface. Juxtaposed blocks 1 may have interlocking formations or be interconnected by a bar 6 (possibly telescopic). The hump may incorporate a counting switch. The base may have a channel to accommodate a fire hose or cable crossing the road. Figures 13, 14 (not shown) illustrate (a) a block carrying a sign post (51) and (b) a ring of blocks (60) forming a roundabout. <IMAGE> |
