U.S. routes, also known as U.S. highways, are a network of roads that connect cities and towns across the United States. Established in 1926, these routes are numbered and marked with a distinctive shield sign. They serve as important transportation corridors for both local and long-distance travel. The U.S. route system complements the Interstate Highway System, providing access to areas not served by interstates. While interstates are designed for high-speed travel, U.S. routes often pass through urban areas and rural landscapes, offering scenic views and access to various attractions, including national parks and historic sites.