Ronald Reagan

“ The Interstate System accounts for just over one percent of the total road mileage in the United States, yet it carries approximately 20 percent of the Nation's total traffic volume. Employing the most advanced highway safety designs ever devised, the Interstate System is one of the Nation's safest modes of transportation. ”

“ As the world's largest and most successful transportation and public works project, it has enhanced travel and has helped join the Nation together to supply raw material, finished goods, food, and other essential products and services, and contributed to the national defense. ”