Philadelphia Drivers License Practice Test

How should you judge your speed when driving at night?

1. Drive at the speed limit mandated for the road

2. Drive at a speed that allows you to stop within the distance illuminated by your headlights

3. Increase your speed to ensure you reach your destination quickly

4. Follow the traffic in front of you

The correct answer is: Drive at a speed that allows you to stop within the distance illuminated by your headlights

When driving at night, it is crucial to adjust your speed to match the visibility conditions. The correct choice emphasizes driving at a speed that allows you to stop within the distance illuminated by your headlights. This is important because nighttime driving reduces visibility significantly, which can make it harder to see obstacles, pedestrians, or changes in the road ahead. If you drive too quickly, you may not have sufficient time to react to surprises, leading to potentially dangerous situations. By adjusting your speed in accordance with the distance your headlights illuminate, you ensure that you can safely stop if needed. This approach prioritizes safety over simply adhering to the speed limit or attempting to keep pace with other traffic, both of which may not account for reduced visibility conditions. This judgment allows for better reaction time and enhances your ability to navigate safely through any unforeseen circumstances you may encounter while driving after dark.