Westinghouse Air Brake Technologies Corp. engages in the provision of equipment, systems, and value-added services for the rail industry. The company is headquartered in Pittsburgh, Pennsylvania and currently employs 29,500 full-time employees. Its Freight Segment primarily manufactures new and modernized locomotives; provides aftermarket parts and services to existing locomotives; provides components to new and existing freight cars; builds new commuter locomotives; supplies rail control and infrastructure products; overhauls locomotives; and provides heat exchangers and cooling systems for rail and other industrial markets. Its Transit Segment primarily manufactures and services components for new and existing passenger transit vehicles, such as regional trains, high-speed trains, subway cars, light-rail vehicles and buses; supplies rail control and infrastructure products including electronics, signal design and engineering services.