| 摘要 |
<P>PROBLEM TO BE SOLVED: To install only a precast material at a site, to reduce a working process at the site and improve efficiency on the execution of works, and to enhance workability without requiring forms, which must be assembled and removed, separately remarkably becuase the whole is installed together with a frame even when the precast material is used. <P>SOLUTION: A lane marker is composed of outer frames 3, fillers 4 filled into the outer frames 3 and the precast materials 5 constituted of magnetic nails 2 as magnetic members buried into the fillers 4, and the lane marker is disposed on a road surface 1 or a place, where a floor slab surface is notched. <P>COPYRIGHT: (C)2004,JPO |
