Sidewalk curbs, also known as curb stones, kerb stones, or edge stones, are boundary markers placed along the edges of roadways. Here’s a look at the applications and functions of sidewalk curbs:

Scope of application

1. **Road Construction**: Curbstones play a crucial role in road construction by defining boundaries and guiding traffic. By installing curbstones, lanes can be clearly separated from sidewalks, enhancing traffic safety. Additionally, curbstones are often used to neatly finish off road edges, boosting the aesthetic appeal and overall texture of the roadway.

2. **Sidewalks and Pedestrian Streets**: Curbstones play a crucial role in the design of sidewalks and pedestrian streets by defining space and guiding pedestrian flow. By installing curbstones, sidewalks can be clearly separated from roadways, ensuring safe passage for pedestrians. Additionally, varying colors and shapes of curbstones can be used to create distinctive visual effects, enhancing the aesthetic appeal of the city.

3. **Landscape Design**: Sidewalk stones are frequently used in landscape design to define boundaries, enclose flower beds, and pave pathways. They help separate areas like lawns and flowerbeds from pedestrian walkways, ensuring a clean and well-organized appearance. Additionally, sidewalk stones can be employed to create distinctive landscape features—such as borders for flower beds or edges for winding paths—enhancing the garden's artistic appeal and visual charm.

4. **Parking Lots and Garages**: Curb stones are commonly used in the design of parking lots and garages to delineate parking spaces and mark boundaries. By installing curb stones, spaces can be clearly defined, preventing collisions and reducing confusion among vehicles. Additionally, different colors and shapes of curb stones can be employed to identify special parking areas, such as spaces reserved for people with disabilities or those equipped with charging stations.

5. **Public Squares and Building Edges**: Setting curb stones helps separate public squares from surrounding roads or other areas, creating a clear boundary that makes it easier for pedestrians to navigate. Additionally, curb stones are often used to protect the edges of landmark buildings, preventing vehicles from approaching too closely and minimizing the risk of damage.

### Features

1. **Protecting Road Edges**: Curbstones prevent wheels from damaging the road base, extending the road's lifespan. When installed on both sides of slopes, they also help prevent soil erosion and slope collapse, ensuring the stability of the roadway.

2. **Zoning**: Curbstones clearly delineate various areas such as roadways, sidewalks, green spaces, and medians, helping to create a more organized road layout.

3. **Guiding Traffic**: The placement of curb stones helps drivers and pedestrians clearly identify road boundaries, thereby enhancing traffic safety.

4. **Beautifying the Environment**: Sidewalk stones not only serve a practical purpose but also enhance the city’s aesthetic appeal through their diverse materials, colors, and shapes.

5. **Drainage Function**: The uneven, textured design of the curb helps channel rainwater toward the drainage system, preventing water accumulation that could lead to slippery roads and safety hazards.

In summary, curbs play a vital role in various fields such as urban construction, road planning, and landscape design, making them an indispensable component of urban infrastructure.