Minimum speed limits are often in place for what reason?

• A. To prevent slow-moving vehicles from creating hazards
• B. To increase fuel efficiency
• C. To reduce road wear
• D. To maintain the general flow of traffic

Answer: (D)

Minimum speed limits are set to keep traffic moving at a fairly steady pace on higher-speed roads. When some vehicles go much slower than the surrounding traffic, faster drivers must weave or brake suddenly, which raises crash risks and disrupts flow. By establishing a floor speed, the overall speed variance is reduced, making lane changes more predictable and traffic progression more consistent. That focus on maintaining the general flow of traffic is why this choice is the best. The other ideas don’t capture the main goal: fuel efficiency and road wear aren’t the primary reasons, and while slow drivers can contribute to hazards, the core aim is to keep traffic moving smoothly and safely.