Imagine a world without automobiles, trains, airplanes, water transportation such as ships, or pipelines. Without these five different modes of transportation life would be different. These modes of transportation make life enjoyable as they make it possible to have the quality of life that most people enjoy. The economy of many countries can be tracked with the methods of transportations determining how wealthy a country may be. "The fact that transportation represents 3.3 percent of our national income understates the importance of that sector to our economy and our well-being" (Moore 2001). The role of transportation over the years and the costs of transportation play a vital role in the lives of people today.
