Abstract
A lot of entries continue to date, and the truck transport industry has been already beyond 60, 000 companies after the deregulation, 1990. The medium and small-sized enterprises are majority in the truck transport industry, and the major prime contractor entrust to the subcontractor frequently.
In this study, I clarified the actual situation of the business structure and the many stratifications of business in this industry and calculated it with the definition of the many stratifications index. In addition, I examined the influence that multilayered business gave a truck transport business from the viewpoint of merits and demerits.
