| 摘要 |
<p>A safety barrier for roads, used as traffic divider, comprises a double row of concrete made New Jersey barrier elements (1, 1') which allow the realization of a hedge on the interposed earth against light rays. The earth is contained in a sack (2) made of nonwoven fabric, fixed to both elements (1; 1') of the barrier, so as to leave gaps (8, 8') behind the rear walls of the barrier elements (1; 1'). The gaps (8, 8') and a plurality of sliders or runners (A) provided on the barrier's base, allow during impact a controlled displacement of said barrier (1, 1'). The calibration of decelerations is adjusted by the material used for the sliders (A).</p> |
