Westinghouse Air Brake Technologies Corp. engages in the provision of equipment, systems, and value-added services for the rail industry. It operates through the Freight and Transit segments. The Freight segment builds new locomotives, manufactures and services components for new and existing freight cars and locomotives, rebuilds freight locomotives, supplies railway electronics, positive train control equipment, and signal design and engineering services, and provides related heat exchange and cooling systems. The Transit segment manufactures and services components for new and existing passenger transit vehicles, including regional trains, high speed trains, subway cars, light-rail vehicles, and buses, builds new commuter locomotives, refurbishes subway cars, and provides heating, ventilation, air conditioning equipment, and doors for buses and subway cars. The company was founded in 1869 and is headquartered in Pittsburgh, PA.