| 摘要 |
The mast (1) has a fixing plate at a base for being anchored on a concrete block at top. The top of the mast has a traffic sign attached on an attachment zone. A bottom part (1A) is surmounted on a top part (1B). The bottom part is constituted by a post with polygonal section. The post has faces structured to being deformed so as to be detached from the fixing plate. The top part is constituted by a tube with overall circular section offering a large number of orientations of the traffic sign than that of the bottom part. The bottom part has length in order of 1.5 to 2.5 meters. |
