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DRIVING BEHAVIORS REPORTED FOR DRIVERS AND MOTORCYCLE OPERATORS INVOLVED IN FATAL CRASHES, 2012
Behavior Number Percent
Driving too fast for conditions or in excess of posted speed limit or racing 9,320 20.6%
Under the influence of alcohol, drugs or medication 6,199 13.7
Failure to keep in proper lane 3,431 7.6
Failure to yield right of way 3,211 7.1
Distracted (phone, talking, eating, etc.) 3,119 6.9
Overcorrecting/oversteering 2,246 5.0
Operating vehicle in a careless manner 2,052 4.5
Failure to obey traffic signs, signals or officer 1,820 4.0
Operating vehicle in erratic, reckless, or negligent manner 1,650 3.6
Swerving or avoiding due to wind, slippery surface, other
vehicle, object, nonmotorist in roadway, etc.
1,557 3.4
Vision obscured (rain, snow, glare, lights, buildings, trees, etc.) 1,282 2.8
Drowsy, asleep, fatigued, ill, or blacked out 1,254 2.8
Driving wrong way in one-way traffic or on wrong side of road 1,004 2.2
Making improper turn 930 2.1
Other factors   5,238 11.6
None reported   14,150 31.2
Unknown   5,146 11.4
Total drivers (1)  45,337 100.0%

(1) The sum of percentages is greater than total drivers as more than one factor may be present for the same driver.

Source: U.S. Department of Transportation, National Highway Traffic Safety Administration.

 
DRIVING BEHAVIORS REPORTED FOR DRIVERS AND MOTORCYCLE OPERATORS INVOLVED IN FATAL CRASHES, 2008
Behavior  Number    Percent  
Failure to keep in proper lane or running off road   12,106 24.1%
Driving too fast for conditions or in excess of posted limit or racing   10,812 21.5
Under the influence of alcohol, drugs, or medication   7,186 14.3
Inattentive (talking, eating, etc.)   4,711 9.4
Failure to yield right of way   3,493 7.0
Overcorrecting/oversteering   2,257 4.5
Failure to obey traffic signs, signals, or officer   2,059 4.1
Swerving or avoiding due to wind, slippery surface, other
vehicle, object, nonmotorist on roadway, etc. 
2,043 4.1
Vision obscured (rain,snow,glare,lights,building,trees,etc.) 1,369 2.7
Operating vehicle in erratic, reckless, careless or negligent manner 1,334 2.7
Making improper turn   1,296 2.6
Drowsy, asleep, fatigued, ill or blacked-out 1,210 2.4
Driving wrong way in one-way traffic or wrong side of road 747 1.5
Other factors   8,491 16.9
None reported   17,358 34.6
Unknown   829 1.7
Total drivers (1)   50,186 100.0%

(1) The sum of the numbers and percentages is greater than total drivers as more than one factor may be present for the same driver.

Source: U.S. Department of Transportation, National Highway Traffic Safety Administration.

 
DRIVING BEHAVIORS REPORTED FOR DRIVERS AND MOTORCYCLE OPERATORS INVOLVED IN FATAL CRASHES, 2009
Behavior Number Percent
Driving too fast for conditions or in excess of posted speed limit 9,654 21.3%
Failure to keep in proper lane or running off road 7,696 17.0
Under the influence of alcohol, drugs or medication 6,957 15.4
Inattentive (talking, eating, etc.) 4,196 9.3
Failure to yield right of way 3,067 6.8
Overcorrecting/oversteering 2,062 4.6
Failure to obey traffic signs, signals or officer 1,922 4.2
Swerving or avoiding due to wind, slippery surface, other
vehicle, object, nonmotorist on roadway, etc.
1,801 4.0
Driving wrong way in one-way traffic or on wrong side of road 1,382 3.1
Operating vehicle in erratic, reckless, careless or negligent manner 1,347 3.0
Vision obscured (rain, snow, glare, lights, buildings, trees, etc.) 1,205 2.7
Drowsy, asleep, fatigued, ill, or blacked out 1,202 2.7
Making improper turn 1,168 2.6
Other factors 7,602 16.8
None reported 15,795 34.9
Unknown 1,009 2.2
Total drivers (1) 45,230 100.0%

(1) The sum of the numbers and percentages is greater than total drivers as more than one factor may be present for the same driver.

Source: U.S. Department of Transportation, National Highway Traffic Safety Administration.

 
DRIVING BEHAVIORS REPORTED FOR DRIVERS AND MOTORCYCLE OPERATORS INVOLVED IN FATAL CRASHES, 2010
Behavior   Number of drivers Percent
Driving too fast for conditions or in excess of posted speed limit 9,532 21.4%
Failure to keep in proper lane or running off road   7,436 16.7
Under the influence of alcohol, drugs or medication   7,052 15.9
Failure to yield right of way   3,196 7.2
Distracted (phone, talking, eating, etc.) 2,912 6.6
Operating vehicle in erratic, reckless, careless or negligent manner 2,438 5.5
Overcorrecting/oversteering   2,034 4.6
Failure to obey traffic signs, signals or officer   1,912 4.3
Swerving or avoiding due to wind, slippery surface, other
vehicle, object, nonmotorist on roadway, etc.
1,687 3.8
Vision obscured (rain, snow, glare, lights, buildings, trees, etc.)   1,426 3.2
Driving wrong way in one-way traffic or on wrong side of road   1,356 3.1
Drowsy, asleep, fatigued, ill or blacked out   1,218 2.7
Making improper turn   970 2.2
Other factors   5,971 13.4
Unknown   3,408 7.7
None reported   13,521 30.4
Total drivers (1)  44,440 100.0%

(1) The sum of the figures in the number of drivers column is greater than "total drivers" as more than one factor may be
present for the same driver.

Source: U.S. Department of Transportation, National Highway Traffic Safety Administration.