The Highway Transportation System is coordinated by: A. The U.S. Department of Transportation B. Your local police department C. The Department of Education D. The Internal Revenue Service

A. The U.S. Department of Transportation

The Highway Transportation System (HTS) in the United States is coordinated by the U.S. Department of Transportation (DOT). This federal department is responsible for planning and coordinating federal transportation projects. It also sets safety regulations for all major modes of transportation, including roadways, which is an integral part of the HTS.

Extra: The U.S. Department of Transportation was established by an act of Congress on October 15, 1966. Its mission is to ensure a fast, safe, efficient, accessible, and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people. The HTS is a complex, vast network that includes not just roadways, but vehicles, and users, which are all coordinated to provide safe and efficient movement of people and goods. Key components include infrastructure (such as roads, bridges, and traffic signals), traffic laws and enforcement (conducted by local and state policing agencies), vehicle manufacturing standards, and driver behavior regulations. Safety programs, educational initiatives, and funding for road maintenance and improvements are also part of the system overseen by the DOT.