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 27,000 full-time employees. The company operates through two segments: Freight and Transit. Freight Segment manufactures and provides new locomotives; provides aftermarket parts and services to existing locomotives; provides components for 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. Transit segment 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, and refurbishes passenger transit vehicles.