Final answer:
Increasing the following distance is important in certain situations for added safety, such as heavy traffic, high speeds, poor weather, and blocked views.
Step-by-step explanation:
Increasing the following distance is important in certain situations for added safety. Some situations where you should increase the three-second distance include heavy traffic, driving at high speeds, poor weather conditions with low visibility, and when your view is blocked. By maintaining a longer distance between your car and the car in front, you have more time to react and can prevent accidents. For example, if the car in front suddenly brakes, you have more space to stop safely without rear-ending them.