In the construction of paved roads, they are used to prepare the base course to create a wide flat surface upon which to place the asphalt. Graders are also used to set native soil foundation pads to finish grade prior to the construction of large buildings. Graders can produce inclined surfaces, to give cant (camber) to roads. In some countries, they are used to produce drainage ditches with shallow V-shaped cross-sections on either side of highways.