Curbs (made of granite and other materials) are used to delimit spaces, whether they are passable or not, we generally see them in the paving of streets where they have the function of separating the sidewalk, passable by pedestrians, and the road, passable by vehicles.
In the previous example they are placed in such a way that they generate a small step of between five and ten centimeters to differentiate both pavements, and in this way provide safety for pedestrians in front of vehicles, making it difficult for them to invade the sidewalk.
Another function of curbs can be:
- Contribution for the correct collection of rainwater.
- Protection of bicycle lanes, being used as separators from the rest of the circulations.
- Delimitation between indoor and outdoor areas of enclosures.
- Meeting lines with other surfaces such as grass, sand, gravel, boulders, etc.