Union paving jobs involve road construction. Equipment operators control machines such as an asphalt roller, a cement truck driver, or milling machine operator. Asphalt rakers and finishers ensure that the pavement surface is smooth, while the duties of supervisors involve overseeing the paving operation. Some pavers operate multiple pieces of equipment or load materials for projects before going to a worksite. While your duties vary depending on your area of specialization, all union paving jobs require that you pay dues to a labor union, which negotiates contracts with your employer and ensures fair working conditions.