| 摘要 |
According to the invention, blocks (10) are formed of rigid colored material shaped as mosaic components of the road sign; the sign is then composed by arranging the blocks (10) as a mosaic, and incorporatedly inserting the blocks (10) into the upper layer (40) of the wearing course, in such a manner that the upper surface of the mosaic road sign is substantially coplanar with the road surface. |
