Following his work in the United States government, Garfield founded the Auto-Train Corporation as a passenger railroad that could also transport personal cars. The Auto-Train came into service in 1971, carrying passengers and their cars on the between
Lorton, Virginia and
Sanford, Florida, with food service, movies and
sleeping cars available to passengers during the 15-hour trip in each direction. Garfield had his own personal
Pullman car, with private bedrooms and a dining room for himself and his family, that could be attached to the Auto Train. The service was profitable during its first years of operation, frequented by
snowbirds making their annual winter migration to Florida, with a disproportionate share of elderly travelers, many taking along their
Cadillacs, the vehicle that accounted for as much as 60% of the Auto-Train's car load. In later years losses mounted in the face of lower prices available to leisure travelers heading to Florida by airplane and renting a vehicle at their destination, as well as a money losing branch route to
Kentucky. The Auto-Train operation went out of business in 1981, but
Amtrak decided to take over the operation in 1983 and continues to offer the service. He was a member of the Board of Trustees for the Pan American Development Foundation,
American University in
Washington, D.C., and the National Symphony of the
Kennedy Center for the Performing Arts in
Washington, D.C. Garfield was a member of the Transportation Committee of the Metropolitan Orlando International Affairs Commission. He was also an Advisory Board Chairperson for the Institute for Transportation Research at
Barry University. He served as the primary advisor to the
Governor of Florida and the
Florida Department of Transportation on the development of a high speed rail system in Florida. Garfield lectured at many schools in the United States including the
Wharton School of the University of Pennsylvania,
Florida State University, and the Andreas School of Business at
Barry University. ==Later years==