I have 40 years of experience in the field of transportation economics and policy, with specific knowledge in the areas of railroad operations, safety and regulation. I have published on such topics as railroad technology deployment, positive train control and information management. I have testified 20 times on topics such as railroad regulation, bankruptcy, mergers and transport of hazardous materials. I have actively participated in all aspects of railroad transportation from the perspectives of a federal official, corporate executive, Wall Street analyst and academic researcher and professor.