What is the primary reason for the regulation of speed limits on interstates?

The primary reason for the regulation of speed limits on interstates is to enhance road safety. Speed limits are established based on various factors, including the design of the roadway, traffic patterns, and the presence of pedestrians or other hazards. When speed limits are set appropriately, they help to reduce the likelihood of accidents by encouraging drivers to maintain a safe speed that allows for better reaction times, safe maneuvering, and overall control of the vehicle. Additionally, lower speeds can decrease the severity of collisions when they do occur, thereby protecting not only the drivers and passengers but also other road users.

While factors like fuel efficiency, traffic congestion, and vehicle wear are important considerations for drivers and policymakers, they are secondary to the overarching goal of maintaining safety on the roads. Speeding increases the chances of losing control of the vehicle and can lead to more severe accidents, making safety the top priority in the regulation of speed limits on interstate highways.