Accident Statistical Distributions from NASS CDS

The National Automotive Sampling System (NASS) Crashworthiness Data System (CDS) contains a wealth of field accident data. As the size of the database continues to grow, the statistical significance of the data increases and trends can be observed. Numerous papers contain analysis and graphs of particular aspects of the data, but they are usually included in a supporting role to the main topic of the paper, and are extremely difficult to locate in a focused document search. The purpose of this paper is to provide an updated, comprehensive resource to reference when looking for commonly sought-after accident statistics. Charts include accident distributions by Delta-V and impact direction with corresponding injury severity rates. Rollover data is also analyzed, as well as historical trends for injury severity, belt usage, and air bag availability.