To install, repair and fabricate traffic signs; to read and interpret maps with sign designations; and to operate hydraulic post drivers, hydraulic anchor pullers, generators, hammer drills, power drills, power impact drills, grinders, wrenches, hammers, sledgehammers, shovels, fence post drivers, levels, forklifts, paint stripping machines, propane torches and other various power and manual tools and equipment. Knowledge / Skills: Working knowledge of basic math; of sign design and layout; of the materials and equipment used in the manufacturing of signs, of hazards and safety precautions and practices; of procedures and practices applied in inspecting, installing, repairing, and fabricating traffic signs; of the methods, equipment and materials used in painting, marking and striping of County streets; and of the operation and maintenance of the paint/striping machine.