This is the 11th edition of the National Accident Sampling System (NASS) Data Collection, Coding, and Editing Manual. The NASS consists of 36 teams of accident researchers situated throughout the U.S. At each site, or Primary Sampling Unit (PSU), the accident research team researches a probability sample of police reported accidents involving passenger cars, light trucks, and vans which were towed, according to the police report, from the scene due to damage. This system has been termed the Crashworthiness Data System (CDS). Zone centers have been established to provide for the quality control of the CDS data collected and the technical management of the teams within their zone. The purpose of this manual is to provide PSU team members, zone centers, the Transportation Safety Institute NASS Training Program Coordinator, and the National Center for Statistics and Analysis with a consistent, standardized set of instructions for sampling accidents and collecting, coding, and editing the data. The manual includes seven substantive sections: Introduction; Description of the Sampling Frame; Overview of Sampling Activities; Overview of Information to be Collected on Sampled CDS Accidents; Form Logs; Submission Instructions; and Coding Instructions. The Appendices contain (1) the Uniform Symbols for Scene Marking, (2) the Uniform Symbols for Accident Diagramming, (3) the Photography Instructions, and (4) the listing of Variable Computer Formats.

  • Corporate Authors:

    National Center for Statistics and Analysis

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Publication Date: 1988-1

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: v.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00496556
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: HS-807 196
  • Files: HSL, TRIS, USDOT
  • Created Date: Aug 31 1990 12:00AM