Safety, high speeds, and ride comfort with low operating and maintenance costs are the most important factors for passenger coaches. For many years, Hyundai Rotem has concentrated its efforts on the development of high-quality passenger coaches and has succeeded in manufacturing a bogie that offer all the desirable features by using modern CAD/CAM techniques. Currently, hundreds of its quality products, including high-class tourist trains and commuter trains etc., have been manufactured and supplied to the KORAIL and other clients around the world. Hyundai Rotem signed a contract with the US Southern California Regional Rail Authority (SCRRA) to deliver double-deck coaches on April 2006. The coaches will be supplied to the united routes (Metrolink) covering the five counties near Los Angeles. CEM (Crash Energy Management) technology is applied to the coaches and they are designed to cope with maximum speeds of up to 160km/h.