Variability of Hybrid III Clearance Dimensions within the FMVSS 208 and NCAP Vehicle Test Fleets and the Effects of Clearance Dimensions on Dummy Impact Responses

The study aims to examine: 1) the extent of variability of occupant clearance dimensions in currently manufactured vehicles when the Hybrid III dummy is placed in driver and passenger seating positions in accordance with NCAP and FMVSS No. 208 test procedures, and 2) to explore if occupant clearance dimensions differ among several classes of vehicle sizes. The findings are compared with real world occupant clearance data reported by other researchers. The study also aims to explore if a relationship exists between dummy responses and clearance dimensions. This is done through statistical analysis of the data used in this study and through a computer model analysis created by the Ford Motor Company.