In Australian commercial construction projects, the term "kerb" refers to a raised edge or border that is typically constructed from concrete, stone, or other durable materials. It is used to separate different areas of a construction site, such as parking lots, driveways, and pedestrian walkways.

Kerbs serve several important functions in commercial construction projects. They help to define the edges of a construction site and provide a clear boundary between different areas. They also help to control the flow of traffic and pedestrians, ensuring that they stay within designated areas and reducing the risk of accidents.

In addition to their functional role, kerbs can also enhance the aesthetic appeal of a construction site by providing a clean and well-defined edge to paved areas. They can also help to prevent erosion and damage to the surrounding landscape by directing water away from the site.

It is typically made of concrete, stone, or asphalt and serves several purposes:

1. Structural Support: Kerbs provide structural support to the pavement by confining the flexible pavement layers and preventing lateral movement.

2. Drainage Control: They help in directing water runoff to drainage systems, preventing water from pooling on road surfaces and pavements.

3. Safety: Kerbs act as a physical barrier between vehicular traffic and pedestrian areas, enhancing safety for pedestrians.

4. Aesthetic and Functional Delineation: They delineate different areas within a construction site or urban environment, such as separating roads from footpaths, parking areas, or landscaped zones.

5. Traffic Management: Kerbs can be used to guide traffic flow and manage vehicle access to certain areas.