The road construction worker is responsible for performing testing and sampling in order to determine if a given site is suitable for road construction. Surveying equipment is carried by the road workers to the site where new road construction projects begin. Road workers must also make sure that all equipment and materials conform to state standards. Once the site is ready for construction, the road workers remove all debris, rocks and trees in the way of the construction project. The road workers construct roads using machines and equipment such as concrete mixers, sanders, loaders and dump trucks. Road workers also perform regular maintenance of roads such as plowing, patching asphalt, removing trash and repairing road signs, according to the Department of Transportation.