EVALUATION OF FMVSS 214 - SIDE IMPACT PROTECTION: DYNAMIC PERFORMANCE REQUIREMENT; PHASE 1: CORRELATION OF TTI(D) WITH FATALITY RISK IN ACTUAL SIDE IMPACT COLLISIONS OF MODEL YEAR 1981-1993 PASSENGER CARS; PLAN FOR PHASE 2: EFFECT OF FMVSS 214 AND CORRELATION OF TTI(D) WITH ACTUAL FATALITY RISK IN MODEL YEAR 1992-2000 PASSENGER CARS

Federal Motor Vehicle Safety Standard (FMVSS) 214, Side Impact Protection, was amended in 1990 to assure occupant protection in a dynamic test that simulates a severe right-angle collision. It was phased into new passenger cars during model years 1994-97. The test involves a Moving Deformable Barrier hitting the side of a vehicle. Side Impact Dummies are seated adjacent to the impact point. A Thoracic Trauma Index, TTI(d), is measured on the dummies. The standard will be evaluated in two phases. Phase 1, completed in this report, is a statistical analysis of relationships between front-seat TTI(d) and fatality risk in actual side impacts on the highway, in baseline, pre-standard vehicles of model years 1981-93, based on Fatality Analysis Reporting System (FARS) data from late 1980 through early 1998. The report also presents a plan for Phase 2, a proposed statistical comparison of side-impact fatality and injury rates in cars produced immediately after vs. immediately before the implementation of FMVSS 214. The principal finding of Phase 1 is a statistically significant association of TTI(d) with side-impact fatality risk in passenger cars of model years 1981-93. The observed relationship is stronger, however, in 2-door cars than in 4-door cars. Each reduction of TTI(d) by one unit is associated with an estimated 0.927% reduction of fatality risk in side impacts of 2-door cars. The association between TTI(d) and fatality risk in the corresponding analysis of baseline 4-door cars was not statistically significant.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 248 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00780290
  • Record Type: Publication
  • Report/Paper Numbers: HS-809 004,, NHTSA Technical Report
  • Files: HSL, TRIS, USDOT
  • Created Date: Dec 20 1999 12:00AM