li>Installation, maintenance, replacement, programming, repair and troubleshooting of street lighting and traffic signals, including traffic signal controllers, cabinets, detection, wiring, signal heads, poles, etc., as well as communications equipment. Ability to exert moderate physical effort, typically involving, some combination of climbing and balancing, stooping, kneeling, crouching, and which may involve some lifting, carrying, pushing and/or pulling of objects and materials of moderate weight (up to 50 pounds.).