I have 45 years of experience, and specialize in the field of railroad freight car engineering with specific knowledge in the areas of car design, component design and safety appliances. I have published on such topics as railroad coupling systems, intermodal cars and comparison of test results with service experience. I have testified 18 times on topics such as effect of safety appliances on employee injuries and causes of freight car fatigue cracks. I have worked in the field of freight car engineering as an employee of a railroad, a railcar manufacturer, and for one of the largest owner of freight cars.