There are many people who have been drowsy while driving. Sometimes you are the one who is feeling sleepy behind the wheel or you were in the car with someone who was having trouble staying awake. There are many car accidents that occur as a result of drowsy drivers. Here are some ways to identify that a driver is too drowsy to drive:

1. Drivers who are weaving in and out of the lane are often drowsy drivers. Drivers who are tired tend to make less steering corrections and therefore when corrections are made, they are harsh and jerky movements.

2. Usually drivers who are feeling sleepy need conversation in order to keep them awake at the wheel. If you realize that the conversation is not making sense, you should not continue to drive.

3. If a driver drifts off to the side of the road and drive on the rumble strips, they should make sure to pull over and rest for a bit. Driving over the rumble strips usually indicates that the driver has fallen asleep momentarily and cannot keep the car on the road because they are too tired.

4. If you see a driver jerk their neck, it usually indicates that the driver has fallen asleep and the jerk is what wakes them up.

Overall, you should not get into the car with a driver who is drowsy. Also, you should not drive if you feel you are just too tired. Avoiding unsafe drivers on the road is an easy way to avoid an accident and the need to call for emergency auto assistance.