Imagine you are driving the blue car behind the red one. What is the smallest following distance the Pennsylvania Driver's Manual recommends?
Correct answer: At least 4 seconds.
Answer options
A1 second
BAt least 4 seconds Correct
CHalf a second
Why
Pennsylvania's manual calls for a following distance of at least 4 seconds: when the red car's rear bumper passes a fixed point such as a pole or road marking, you should count four seconds before you reach it. With a gap of a second or less, there is almost no time to react.