Which statement about following distance is true?

• A. It has no effect on traffic flow
• B. Following too closely can agitate other drivers
• C. It improves reaction time
• D. It is legally required to tailgate in heavy traffic

Answer: (B)

Safe following distance means leaving enough space to see the road ahead and stop safely if the lead vehicle slows or stops. When you tailgate, you have very little time to react, so the risk of a rear-end collision goes up. It also tends to irritate drivers behind you, who may brake suddenly or feel pressured, potentially leading to unsafe driving or road rage.

The idea here isn’t that your brain reacts faster with less distance; it’s that more space gives you more time to use your natural reaction and braking ability effectively. So tighter distance doesn’t improve reaction time—it reduces the time you have to respond and increases danger.

It’s not legally required to ride close or tailgate; in fact, laws generally require maintaining a safe following distance. And while maintaining appropriate space can slightly smooth traffic flow by reducing abrupt braking, closely following does the opposite and can cause stop-and-go waves. A practical rule is to use at least a two-second gap (more in bad weather or with heavy loads).