What is the primary function of a road grader?

The primary function of a road grader is indeed to create a flat, even surface for road construction or maintenance. This is essential in the preparation of roads, as a properly graded surface is crucial for ensuring drainage, comfort, and safety for vehicles. The blade of the grader is adjustable, allowing the operator to control the depth and angle, enabling precise shaping of the surface, whether for new roads or for maintenance of existing ones.

Creating a flat and even surface is also important for subsequent layers of materials to adhere properly. A well-graded surface ensures that the road can withstand traffic loads and environmental conditions, thereby extending its life and performance. This function distinguishes road graders from other equipment that may handle tasks like soil compaction, material transport, or foundational drilling, which are not their primary objectives.