National Automotive Sampling System (NASS) General Estimates System (GES) Analytical Users Manual 1988-2009

摘要

In 2009, the National Highway Traffic Safety Administration (NHTSA) took a big step toward the goal of unifying the FARS and NASS GES data definitions and coding, simplifying crash data entry and analysis while also reducing costs and errors. The Data Standardization Work Group, consisting of representatives from NHTSA, the Federal Motor Carrier Safety Administration (FMCSA) and the Federal Highway Administration (FHWA), was chartered in 2006. The mission of the work group was to improve the compatibility of FARS and NASS GES and to bring both systems into alignment with the Model Minimum Uniform Crash Criteria (MMUCC), the guideline now used by nearly all States in the development and revision of their crash report forms and databases. After a thorough review of the data elements and attributes (variable values) in FARS and NASS GES and comparison to the recommended MMUCC data elements and attributes, the first phase of identified standardization changes were implemented in 2009, involving 45 common data elements, to include: Hit and Run; Speed-Related; Rollover/Location of Rollover; Driver Vision Obscured by; Vehicle Removal; Air Bag Deployed; Cargo Body Type; Alcohol Test/Drug Test; Driver Presence; Number of Occupants; Violations Charged, and Work Zone.