Arterial roads carry what percentage of all highway travel in the U.S.?

Arterial roads play a crucial role in the U.S. highway system as they are designed to move large volumes of traffic efficiently. They primarily facilitate through traffic and connect major urban areas while also providing access to local streets. The statistic that arterial roads account for around 72% of all highway travel reflects their importance in the overall transportation network. This high percentage indicates that a significant majority of highway travel occurs on these types of roads, emphasizing the need for proper maintenance and development of arterial infrastructure to support the transportation demands of both commercial and personal vehicles. Understanding this statistic can help in planning and implementing transportation policies and improvements that enhance roadway safety and traffic flow.