| 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. |