ウェスティングハウス・エア・ブレーキ
Morrison–Knudsen spun-off MK Rail in 1993; it became a publicly traded company in 1994. After Morrison–Knudsen's bankruptcy in 1996 the company renamed itself MotivePower. The company merged with Westinghouse Air Brake Company in 1999 to form Wabtec. MotivePower is now a wholly owned subsidiary of Wabtec.