What is the main purpose of minimum speed signs?

• A. To keep traffic flowing smoothly
• B. To restrict fast drivers
• C. To encourage lane changes
• D. To increase fuel consumption

Answer: (A)

Minimum speed signs set the lowest speed that vehicles should travel on that road or lane. Their main purpose is to keep traffic flowing smoothly by preventing vehicles from going too slowly, which can cause dangerous slowdowns, bottlenecks, and risky passing maneuvers. When speeds are more uniform, drivers can merge and follow with safe distances, reducing rear-end collisions and congestion. This helps faster drivers make steady progress without abrupt braking. It’s not about restricting fast drivers or encouraging unnecessary lane changes, and it doesn’t aim to increase fuel consumption; it’s about maintaining a safer, steadier flow of traffic.