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I am looking for a dataset that lists the number of car accidents broken down by causes in the United States. By cause I mean the direct cause of the accident such as failure to stop at red light, or changing lane without checking for the blind spot. (not the indirect cause such a driving under the influence). Ideally, broken down by year as well.


The Wikipedia page on Epidemiology of motor vehicle collisions contains a list by type of crashes (not cause):

Crashes are categorized by what is struck and the direction of impact, or impacts. These are some common crash types, based on the total number that occurred in the U.S.A. in 2005, the percentage of total crashes, and the percentage of fatal crashes:

  • Rear impacts (1,824,000 crashes, 29.6% of all US crashes, 5.4% of US fatal crashes)
  • Angle or side impacts (1,779,000 crashes, 28.9% of all US crashes, 20.7% of US fatal crashes)
  • Run-off-road collisions (992,000 crashes, 16.1% of US crashes, 31.7% of US fatal crashes)
  • Collisions with animals (275,000 crashes, 4.5% of US crashes, 0.4% of fatal crashes)
  • Rollovers (141,000 crashes, 2.3% of all US crashes, 10.9% of US fatal crashes)
  • Head-on collision (123,000 crashes, only 2.0% of all US crashes, but 10.1% of US fatal crashes)
  • Collisions with pedestrians and bicyclists (114,000 crashes, only 1.8% of US crashes, but 13.5% of US fatal crashes)
  • Back-up collisions killed 221 people in the US in 2007, and injured about 14,400. This is one of the most common types of non-traffic auto collision in which road workers and children 15 and younger are killed.
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The NHTSA has a survey with reasons for crashes.

Table 1. Driver, Vehicle, and Environment Related Critical Reasons

Table 2. Driver‐Related Critical Reasons

Table 3. Vehicle‐Related Critical Reasons

Table 4. Environment‐Related Critical Reasons

https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/812506 (mirror)

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