When should you slow down and increase your following distance?

  1. When the road is wet.
  2. When your visibility is limited.
  3. When driving in heavy traffic.
  4. All of the above. ✓

Answer: D. All of the above.

You should slow down and leave more following distance in all of these situations: wet roads, limited visibility, and heavy traffic.

Why this is the answer

The Texas handbook puts wet roads, crowded roads, and limited vision together as times to reduce speed and allow more space ahead. It explains that wet pavement makes the car harder to control, and that you should be able to stop within the distance you can see. A second passage adds heavy traffic, bad weather, and low visibility to the same advice. Because each listed condition is covered, the choice that includes all of them is the right one.

Why the other answers are wrong

Remember it

Wet, crowded, or hard to see? Ease off the gas and leave more room.

Official handbook: Texas Driver Handbook (DL-7), Chapter 7: Parking, Stopping, or Standing , p. 45

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.