| 摘要 |
PROBLEM TO BE SOLVED: To provide a sign device capable of simplifying an installation operation and a removal work while being prevented from turning over.SOLUTION: A sign device 100 can be temporally installed in a road surface, and includes annular members 1 and sign members 2 provided in the annular members 1. The sign device 100 is configured so that the road surface is exposed from the inner sides of the annular members 1 when temporally installed in the road surface. |
