| 摘要 |
A hazard warning device comprises an elongate flexible substrate 18, at least a portion of which comprises an air-permeable material, and a high visibility material 20. The substrate 18 may itself be brightly coloured, and the high visibility material 20 may be a retroreflective material. The flexible substrate 18 allows the device to by folded or rolled-up for transport / storage. The device may be mounted on or in the vicinity of a hazard such as a stationary car 19 or wide vehicle. |
