A 2-minute lesson from the Iowa course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Drowsy driving is just as dangerous as drunk driving. Tired drivers have slow reaction times, swerve in and out of lanes, veer off the road, and are more likely to cause a crash.
Warning signs you're too tired to drive:
Daydreaming or wandering thoughts
Trouble remembering the last few miles driven
Yawning repeatedly or rubbing your eyes
Trouble keeping your head up
Drifting from your lane, tailgating, or hitting a shoulder rumble strip
Plan ahead before any trip: stay informed about adverse weather, road construction, and crashes. Check www.511ia.org or the free Iowa 511 app for current conditions on Iowa highways and interstates.
Two hours into a night drive you can't remember the last few miles and you hit the rumble strip. Pull over at the next safe spot to rest, or switch drivers.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
Which of these is a sign of drowsy driving listed in the manual?
Trouble remembering the last few miles driven
Consistently checking your speedometer
Frequently adjusting the radio volume
Using your turn signal early
Answer: Trouble remembering the last few miles driven
The manual lists trouble remembering the last few miles driven as a sign of drowsy driving.