摘要：Over 90 percent of interstate produce movements are by truck. In recent years, concerns have been raised regarding the adequacy of motor carrier services. Reasons for these concerns include the possibility of increased costs or service erosions resulting from relaxed economic regulations, an eroding road infrastructure, increasing congestion, more stringent safety regulations, demographic trends suggesting the onset of an increasingly severe driver shortage, and declines in rail capacity devoted to produce haulage. In this study, trends in the adequacy of trucking services for trucking during the 1980s was examined employing data sets developed by the USDA regarding haulage from five growing areas to six metropolitan areas across the United States, and a case study based on over 9,000 interviews with drivers hauling Florida produce, conducted between 1982 and 1989. The results of the study suggest that ther have been no erosions in service adquacies.
