In 2015, commercial combination trucks logged over how many miles?

In 2015, commercial combination trucks logged over 169.8 billion miles, reflecting the significant role that these vehicles play in the overall transportation system in the United States. This high mileage indicates not only the volume of goods being transported but also the extensive use of combination trucks for freight movement across vast distances. These trucks are integral in both regional and national supply chains, as they facilitate the efficient delivery of products from manufacturers to consumers. The recorded mileage demonstrates the importance of maintaining and improving road infrastructure, as well as ensuring safety regulations to support the heavy usage of these vehicles. Thus, understanding this statistic highlights the scale of the trucking industry and its impact on the economy.