Safe Drive 2000 - tips and statistics for young drivers

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Drowsy Driving

Who is at the Highest Risk? What population groups are the most likely to have an accident attributed to drowsy driving? According to the National Highway Traffic Safety Administration (NHTSA), the three most likely are:

  • Young people between the ages of 16 and 29, especially males.
  • Shift workers.
  • People with untreated sleep disorders.

One of the best articles found during research for this site is at the U.S. Department of Transportation website. Much of the data used here is taken from an article at this site called "Drowsy Driving and Automobile Crashes (NCSDR/NHTSA Expert Panel on Driver Fatigue and Sleepiness)." The purpose of the report was to "provide direction to the NCSDR/NHTSA educational campaign to combat drowsy driving". The reader is invited to visit this site for additional information and insights.

Extent of the Problem. According to a Senate Appropriations Report, in the years prior to 1996 it is estimated that there were approximately 56,000 crashes annually in which driver drowsiness and/or fatigue were cited by the police; roughly 40,000 injuries and 1,550 deaths resulted from these crashes. Bear in mind that there are most probably many more crashes that are caused by drowsiness or fatigue but authorities are still refining their system of reporting to identify these crashes for what they are.

Sleepiness impairs performance. According to the report, reaction time, watchfulness, attention, and information processing are affected by drowsiness.

 

Crash Characteristics

Typical crash characteristics include:

  • Crash happens during the night/early morning or mid-afternoon.
  • Crash is serious.
  • A single vehicle leaves the roadway.
  • Crash occurs on a high-speed roadway.
  • The driver does not attempt to avoid the crash.
  • The driver is alone in the vehicle.

This last is significant in that with another person present in the car, the driver is more likely to stay awake but a driver should never depend on that person as he or she could very well fall asleep as well.

Causes of Drowsiness

The report noted the following as contributing to or increasing the risk of drowsiness:

  • Sleep loss.
  • Driving patterns, including the length of time on the road without a break, time of day relative to age group.
  • Use of sedatives, including common antihistamines and antidepressants.
  • Untreated sleep disorders, including sleep apnea and narcolepsy (person falls asleep without warning).
  • Consumption of alcohol.

 

Young People

Some of you at this point will stop and say, well, there are more drivers in the 16-29 age group, so, of course, there are more accidents. According to the report, one-fourth of all licensed drivers are ages 16-29, but they account for almost two-thirds of drowsy driving crashes.

As a matter of interest, the study also found that age makes a difference as to the time of day a drowsy-driving accident may occur. "The risk of crash related to sleepiness increases during the nighttime hours for both young drivers (under 25 years of age) and drivers between the ages of 26 and 45. Drivers aged 45 through 65 have fewer nighttime crashes, with a peak at 7:00 a.m. Drivers older than 65 are more likely to have fall-asleep crashes during the mid-afternoon." In addition the report states that: "NHSTA data show that males are five times more likely than females to be involved in drowsy-driving crashes."

Possible reasons for young people, and possibly males in particular, being involved in more drowsy-driving crashes include:

  • Being frequently on the road during the nighttime hours.
  • During this period, young people are learning to drive, experimenting and taking more risks and testing limits.
  • Excessive sleepiness associated with maturational changes that increase the need for sleep.
  • Changes in sleep patterns.
  • Cultural and lifestyle factors leading to insufficient sleep especially a combination of school work demands and part-time jobs, extracurricular activities, and late-night socializing.

The researchers in the report lament: "The subgroup at greatest risk comprises the brightest, most energetic, hardest working teens."

 

Shift Workers

According to the report, about one in five men and one in six women work other than a day-time shift. Sleep disruptions caused by shift work may result in lapses in attention, increased reaction time, and decreased performance. When shift work sleep disruptions are combined with the demands of family, second jobs and recreation, it is not surprising that shift workers, including interns, nurses, and 24-hours service center employees, are among those most susceptible to drowsy-driving accidents.

Shift workers themselves can alleviate the effects of sleep disruption by providing an environment at home that lends itself to sleep during off hours and sleeping at regular times. Employers can help workers by providing an area where workers can nap before starting home, or where workers can nap during the shift. Cutting down the number of consecutive hours worked and the frequency of rotating shift workers have also been suggested as possible ways to alleviate the effects of shift work on sleep patterns.

 

Sleep Disorders

Sleep apnea and narcolepsy are not necessarily linked with impaired driving. Persons with untreated sleep disorders are actually involved in fewer accidents than the other two groups possibly because they tend to recognize their sleepiness and take precautions whereas the other two groups may deny they are sleepy and suffer for it. Drivers with these or similar conditions should seek medical advice and treatment to avoid becoming a statistic.

 

Suggested Temporary Countermeasures

 

The report suggests the following for counteracting the effects of drowsiness, but notes that they are not a substitute for being well-rested before a journey; they are only recommended as a means to get a driver safely to a place where they can stop and rest or call for a ride:

  • Take a break for a short nap (about 15-20 minutes).
  • Avoid drinking alcohol when sleepy.
  • Avoid driving between midnight and 6 a.m.
  • Drink a minimum of two cups of coffee or an equivalent.

 

The reports notes that remedies such as getting out of the car and walking around, physical discomfort (shivering, sweating, uncomfortable seat), listening to the radio, talking on a cell phone, and talking to another person, among others, have little evidence to support their effectiveness.

 

Alert Devices

Any type of in-vehicle alert device or shoulder "rumble strips" only briefly awakens a driver and are only effective if the driver takes the hint and stops the car. Pulling into a rest stop is another solution but lately this carries its own perils, among them robbery. Some states have begun stationing police officers or other security force on the premises to protect drivers as they rest and use the facilities. Eventually all states will need this type of security if drivers are expected to use them.