Bleeding (roads)

When we drive on a road, our car's tires move along the surface of the road. Different types of roads have different surfaces, and some surfaces have tiny rocks that can break loose and end up on the surface of the road. When cars drive over these rocks, they can create little holes or cracks in the road.

Bleeding in roads refers to a problem where a road's surface is too soft and the bitumen, which is the black sticky substance that holds the road together, starts to rise to the surface through the small holes or cracks. When the bitumen reaches the surface, it creates a shiny, black, and sticky surface that can become dangerous for drivers.

This happens mainly due to two reasons: first, there is too much bitumen in the mix used to build the road. Second, the road's surface is exposed to high temperatures that melt the bitumen and cause it to rise to the surface.

When roads bleed, driving becomes difficult because the tires don't have a firm grip on the road's surface. This can cause accidents, and it can also damage a car's tires. To prevent this, road maintenance workers have to reseal the road by applying new layers over the bleeding surface, so it becomes smooth again.