CONTROL CHARTS AS A TOOL IN DATA QUALITY IMPROVEMENT

Control-charting has been successfully applied to two National Highway Traffic Safety Administration data systems to help improve and assure the quality of their data. This paper describes the methods used, illustrates the approach through various examples, and discusses various technical issues in applying control charts to these traffic safety data. The paper also explains the rationale of the methods in terms of statistical process control logic. Finally, an example of nonrandomly missing data is given.

• Record URL:
  https://ntlrepository.blob.core.windows.net/lib/16000/16000/16086/PB2000102468.pdf
• 
• Corporate Authors:

  National Center for Statistics and Analysis

  State Data Reporting Systems Division, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Pierchala, C E
  • Surti, J
• Publication Date: 1999-12

Language

• English

Media Info

• Features: Figures; References;
• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Databases; Logic; Methodology; Process control; Quality assurance; Statistical analysis; Traffic safety
• Identifier Terms: U.S. National Highway Traffic Safety Administration
• Uncontrolled Terms: Control charts; Missing data
• Subject Areas: Data and Information Technology; Highways; Safety and Human Factors; I81: Accident Statistics;

Filing Info

• Accession Number: 00784458
• Record Type: Publication
• Report/Paper Numbers: HS-809 005,, NHTSA Technical Report
• Files: HSL, NTL, TRIS, USDOT
• Created Date: Feb 3 2000 12:00AM