The transportation industry is extremely large. It encompasses all of the business that move people or goods, by sea, air, or land from one destination to another. This industry employs millions. Truck driving is one of the largest occupations in this industry but other career options are cargo and freight agent, import and export specialist, cargo handler, train engineer, distribution manager and logistics analyst. Transportation industry opportunities can be classified geographically as local, regional, national, or international. You first need to pay your dues at a local job before moving up to a regional position, and a regional job before a national one.