| 摘要 |
A guardrail unit for installation end to end with similar units, and affording enhanced visibility, comprises a rail 4, a lower rail 3, a post 5 at each end, and vertical bars 8 between rails 3 and 4 and arranged at an angle thereto so as to provide a line of sight for passing motorists, and has apertures 9 in the posts 5 to provide a line of sight therethrough corresponding to that through the bars 8. The unit is compatible with standard guardrails, and may have a sight gap between rails 2 and 4 as shown. Units are joined by bolts though holes 12, and an adaptor is claimed for connecting units though apertures 9 where the units are at differing heights, e.g. on sloping ground. |
