What should drivers do when they exit a tunnel?

When drivers exit a tunnel, it is essential to slow down in order to adjust to the sudden change in brightness. Tunnels typically have dim lighting, and moving from that environment into bright daylight can temporarily impair a driver’s vision. This abrupt change can lead to difficulty in seeing road conditions, vehicles, or pedestrians, and may increase the risk of accidents if a driver does not take the time to adjust.

By decelerating, drivers give themselves the necessary time to acclimate to the new lighting conditions, enhancing their ability to perceive their surroundings safely. This practice aligns with safe driving principles, emphasizing caution and awareness during transitions from enclosed spaces to open areas. The other choices do not address the critical need for this adjustment time and may inadvertently lead to safety hazards on the road.