Road Companion
English
Get the app

Drowsy driving statistics

Your life matters. What the drowsy driving statistics say.

This page is not here to scare you. It is here because the numbers are real, and every one of them was a person on the way somewhere.

1.19 million
road traffic deaths a year, worldwide. WHO, 2023
17.6%
of fatal crashes in the US, 2017–2021, involved a drowsy driver. AAA Foundation, 2024
10–20%
of crashes in Europe have fatigue as a factor. ERSO
1 in 25
adults fell asleep at the wheel in the previous 30 days. CDC, MMWR, 2013

The road, worldwide

About 1.19 million people die on the world's roads every year. Road traffic crashes are the leading cause of death for children and young people aged 5 to 29. WHO, 2023

How often a tired driver is involved

The AAA Foundation for Traffic Safety estimates that a drowsy driver was involved in 17.6% of fatal crashes in the United States between 2017 and 2021. That is about ten times what official crash data show. AAA Foundation, 2024

Police reports in the United States record about 91,000 crashes a year involving drowsy drivers, about 50,000 people injured and about 800 deaths (2017). NHTSA itself says these figures are an underestimate. NHTSA

In Europe, the European Commission's road safety observatory names fatigue as a factor in 10–20% of crashes. On motorways the share is about 20%. ERSO

Falling asleep at the wheel happens to ordinary drivers

In a CDC survey from 2009–2010 in 19 US states and the District of Columbia, 4.2% of adults, about 1 in 25, said they had fallen asleep while driving in the previous 30 days. CDC, MMWR, 2013

Tiredness works a lot like alcohol. Staying awake for 17 hours lowers performance about as much as a blood alcohol level of 0.05%. Dawson & Reid, Nature, 1997

Why the official numbers are low

After a crash, there is no breath test for sleepiness. A driver who nodded off may not know it, or may not say it. That is why the AAA Foundation's estimate is about ten times the official figure, and why NHTSA calls its own numbers an underestimate.

What to do

None of this needs an app. It needs a plan.

  • Sleep before a long drive.Nothing replaces a night's sleep. If you are tired at the start, the drive will not get easier.
  • Take a break every 2 hours.Stop for 15–20 minutes. Get out, walk, drink something.
  • Pull over when the signs appear.Heavy eyelids, yawning, drifting in your lane, missing an exit: stop somewhere safe and rest.

How to stay awake while driving: honest tips

And if you want a second pair of eyes

Road Companion watches your eyelids from the windshield and warns you in three stages before you nod off. It does not replace any of the above. It helps you notice when it is time to stop.

Get it on the App Store

US$4.99 once · No photos saved · No account

Sources

  1. Global status report on road safety 2023. World Health Organization (WHO), 2023. who.int
  2. Drowsy Driving in Fatal Crashes, United States, 2017–2021. AAA Foundation for Traffic Safety, 2024. aaafoundation.org
  3. Fatigue (2021) and Safety Performance Indicators report (2023). European Road Safety Observatory (ERSO), European Commission. road-safety.transport.ec.europa.eu
  4. Drowsy Driving — 19 States and the District of Columbia, 2009–2010. CDC, MMWR, 2013. cdc.gov
  5. Drowsy Driving. National Highway Traffic Safety Administration (NHTSA). nhtsa.gov
  6. Fatigue, alcohol and performance impairment. Dawson & Reid, Nature 388:235, 1997. nature.com