The action of keeping a road or highway in excellent shape is referred to as road pavement maintenance. Monitoring pavement health, addressing and repairing delamination, cracking, and potholes, and maintaining correct pavement lane markings and striping are all part of the job. The type and frequency of maintenance tasks needed for different types of roads vary depending on traffic volume and other factors such as weather conditions. Maintaining roads is important for safety reasons as well as comfort for drivers. Maintenance includes cleaning debris from streets and sidewalks, removing pot holes and other hazards, cutting back overgrown trees and shrubs, and sealing cracks in parking lots and at entrances to buildings. Regular maintenance helps prevent problems with your road surface that may lead to delays or have other adverse effects on traffic flow. Some items that should not be thrown onto streets include nails, screws, metal fasteners, and glass. These items can cause serious injuries if not handled properly. Asphalt plants mix asphalt batch materials (aggregates, modifiers, oils) with hot water and steam to create hot mixtures that are conveyed into trucks for delivery to projects. Asphalt plants also use heat to soften old asphalt so that it can be removed from roads. Asphalt plants work with teams of specialists to ensure that roads remain safe for travel even after years of use. An asphalt plant supervisor oversees the operation of the plant and ensures that it is producing quality product.