Federal Signal Corp designs and manufactures products and integrated solutions for municipal, governmental, industrial, and airport customers. It operates in the segments of Environmental Solutions Group and the Safety and Security Systems Group. The Environmental solutions group manufactures and supplies street sweeper vehicles, sewer cleaner and vacuum loader trucks, hydro-excavation trucks, high-performance waterblasting equipment, dump truck bodies and trailers. The Safety and Security Systems Group offers comprehensive systems and products such as campus and community alerting, emergency vehicles, first responder interoperable communications, and others. The company operates internationally, and generates a majority of its revenue from the Environmental Solutions Group segment.