Using E.D.R. Pre-Crash Data to Calculate a Range for Speed at Impact

Event Data Recorders (EDR), which are included with most modern vehicles, record pre-crash data and include a value for speed just prior to crash. A number of factors can complicate the relationship between the EDR's last-documented speed and the actual speed at impact (SAI), including: data latency, speedometer errors, asynchronously collected data, and wheel slip. In this article, the authors offer a model to account for these factors and determine a range for SAI based on EDR's pre-crash data. Crash reconstructionists look to understand vehicle speed and they have a duty to relate EDR data to the crash under investigation. The authors suggest the importance of comparing EDR data with other available data for consistency.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/20782681
• Authors:
  • Ruth, Rick
  • Wright, Bill
• Publication Date: 2017-5

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 31-37
• Serial:
  • Accident Reconstruction Journal
  • Volume: 27
  • Issue Number: 3
  • Publisher: National Association of Professional Accident Reconstruction Specialists
  • ISSN: 1057-8153
  • Serial URL: https://www.napars.org/

Subject/Index Terms

• TRT Terms: Crash investigation; Crash reconstruction; Crash tests; Event data recorders; Speed data; Velocity
• Uncontrolled Terms: Impact speed
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01644523
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 3 2017 5:16PM