Glass bead road surface marking

When we drive on roads, it's important for us to stay in our lane and avoid accidents. To help us do that, road markers are put in place. One type of road marker is made of tiny glass beads.

These tiny glass beads are mixed with paint and put on the road to make lines and symbols. The paint is specially made so that when headlights shine on it, the glass beads reflect the light back in the same direction it came from. This makes the lines and symbols on the road easier to see when it is dark outside.

When a car or other vehicle goes over the glass bead road marking, the glass beads get crushed and spread out. This creates even more reflective surfaces, making the marker even easier to see.

So, in short, glass bead road surface marking uses little glass beads mixed with paint to make lines and symbols on the road. The glass beads reflect light, making the markers easier to see when it is dark outside.