CDL Challenge: Can You Pass Before Hitting the Road?How far ahead should you be watching on the highway?13%Next Correct Incorrect This gives you time to react to traffic changes and stay safe. How far ahead should you be watching on the highway? 15–20 seconds, about half a mile 12–15 seconds, about a quarter mile 5–8 seconds, about an eighth mile 9–12 seconds, about a quarter mile 13%