A raised pavement marker is a safety device used on roads. These devices are usually made with plastic, ceramic, thermoplastic paint, glass or occasionally metal, and come in a … See more

Glass road studs have a very special shape: the upper half is a dome shape, and the lower half is a base covered with a reflective layer. … See more

Nonreflective raised pavement markers (also known as Botts' dots) are usually round, are white or yellow, and are frequently used on … See more

The surface of this type of vibrating coating line is distributed and scattered with raised bumps. Some bumps are coated with high … See more

In the United States, Canada, Mexico, some countries of South America, Thailand and Australia, these plastic devices commonly have two angled edges facing drivers and … See more

Cat's eyes, in their original form, consist of two pairs of retroreflective glass spheres set into a white rubber dome, mounted in a cast-iron housing. … See more

In the UK, the area in which pedestrians should cross at pelican crossings is marked out by a series of markers. Usually, these are painted as … See more