1978-01-01

Rollover of Heavy Vehicles 785051

Report outlines studies into the heavy duty vehicles rollover, particularly those transporting flammable or hazardous materials. Studies looked into~~frequency of overturning.~types of vehicles involved.~analysis of accident development.~interest in improving resistance to overturning.Data shows that of the accidents studied 26% of the vehicles overturned prior to an impact or to leaving the road. Of these 19% skidded or were involved in an evasive maneuver.The study explores the influence of the following on rollover:~ dual wheels vs. single.~ anti-roll bars.~ height of trailer center of gravity.~ longitudinal position of trailer center of gravity.~ height of the fifth wheel saddle.~ vehicle braking.Mathematical models were developed for analysis and further study.

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