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                National Motor Vehicle Crash Causation Study (NMVCCS)
**Description:**
        The National Motor Vehicle Crash Causation Survey (NMVCCS), conducted from 2005 to 2007, was aimed at collecting on-scene information about the events and associated factors leading up to crashes involving light vehicles. Several facets of crash occurrence were investigated during data collection, namely the pre-crash movement, critical precrash event, critical reason for the critical pre-crash event, and the associated factors. In each investigated crash, these were assigned to driver, vehicle, or environment without suggesting that any of these was cause of the crash or assignment of fault to driver, vehicle, or other crash element. A sample of 5,470 NMVCCS-qualified crashes (i.e., the crashes meeting certain criteria listed in the section: Scope and Limitations of NMVCCS data) was investigated over a period of two and a half years, which represents an estimated 2,189,000 crashes nationwide.
    
          **Tool Type:**
        Database
    
    
    
          **Owner Source:**
        federal
    
          **Sponsor/Owner:**
        National Highway Traffic Safety Administration (NHTSA)
    
        **Published:**
      2008
    
        **Availability:**
      The report is available free of charge at: National Motor Vehicle Crash Causation Study data.
Further information can be found at: National Motor Vehicle Crash Causation Study
    
          **Disclaimer:**
        This information is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained herein. This information does not constitute a standard, specification, or regulation. The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturer's names appear in this information only because they are considered essential to the objective of this publication.
          Any opinions, findings, and conclusions or recommendations, and translations thereof, expressed in this publication are those of the author(s) and do not necessarily reflect the views of the Federal Highway Administration. U.S. DEPARTMENT OF TRANSPORTATION

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