What effect does visual lead-time have when a driver increases speed?

• A. Decreases
• B. Remains the same
• C. Increases
• D. Varies

Answer: (C)

When a driver increases speed, the visual lead-time generally increases. Visual lead-time refers to the distance a driver can see ahead on the road while maintaining proper control of the vehicle. As a driver speeds up, they typically cover ground more quickly, which means they need to see further ahead to react appropriately to upcoming turns, obstacles, or changes in traffic conditions.

Therefore, increasing speed requires the driver to scan a larger area of the road ahead in order to anticipate potential hazards effectively. This necessity to see farther ahead underscores the importance of maintaining a proper visual lead-time as speed increases. It allows the driver to make timely decisions, ensuring safety for themselves and others on the road.