Abstract
The engineering extrapolation of the data from the University of Minnesota tests on the hydraulic bumper-automatic seat belt package made with 3600 and 6000 ib. Automotive vehicle is presented to show the forces of impact on passengers in small cars, buses, trucks and semis for a series of accident conditions. It has been found that small, cars given additional rigidity, and head room for the passenger, have nearly the equivalent safety characteristics of larger cars, and heavy transports may incorporate greater safety for drivers.