When driving at night on a road with lanes, what must you be able to do concerning stopping distances?

The correct answer indicates that when driving at night on a road with lanes, you must be able to stop in half the length of clear road you can see in front of you. This is crucial because visibility is significantly reduced at night, and the distance you can see ahead is shorter compared to daytime driving.

Being able to stop in half the distance you can see helps ensure that you have adequate reaction time to any potential hazards that might suddenly appear on the road, such as obstacles, animals, or other vehicles. This practice is essential for maintaining safety while driving at night since the stopping distances will generally increase due to lower visibility and potentially reduced judgment on the part of the driver.

In contrast, being able to stop in the full length of clear road visible would not account for the limits of visibility at night, making it an unsafe practice. Stopping only at the next intersection or only for traffic signals would not prioritize the dynamic nature of driving, where unexpected circumstances can arise outside of these fixed points. Therefore, the emphasis on stopping in half the visible distance is a wise approach to ensure safer nighttime driving.