For instance, IYT's index dedicates nearly three-quarters of its index to companies in the delivery, railroad and trucking industries. Airlines and marine transportation companies each represent 8% slices. The transportation industry will benefit as healing economies cautiously increase their exposure to the global marketplace and consumers increase demand for goods and services. Strength, however, will not likely be uniform across all aspects of the industry. While investors can attempt to pick and choose which slices of this sector will outperform, a more beneficial option may be to grab exposure to the whole. Written by Don Dion in Williamstown, Mass.