In the picture, the blue car is driving behind the red car. How much following distance does the Oregon Driver Manual tell the blue car's driver to keep?
Correct answer: At least 2 seconds, and 4 or more above 30 mph.
Answer options
AAbout half a second, and 1 above 30 mph
BAt least 2 seconds, and 4 or more above 30 mph Correct
CAbout 1 second, and 2 above 30 mph
Why
Oregon's manual calls a gap of 2 to 4 seconds safe and asks for 4 seconds or more above 30 mph: when the red car passes a sign or pole, the blue car's driver should count at least 2 seconds, or 4 above 30 mph, before reaching the same spot. A shorter gap leaves too little time to react and brake.