The U.S. highway system is a network of roads that connects cities and regions across the United States. It includes various types of roads, such as interstates, state highways, and local roads, designed to facilitate transportation for vehicles. The system was established in 1956 with the creation of the Interstate Highway System, which aimed to improve travel efficiency and safety. The highways are numbered and categorized, with odd numbers typically running north-south and even numbers running east-west. This organization helps drivers navigate easily. The Federal Highway Administration oversees the maintenance and development of these roads, ensuring they meet safety and quality standards.