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Driver actions during real-world precrash phases
Published May 19, 1999 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
As far as enhanced car braking technologies are concerned, a comprehensive analysis of braking and steering maneuvers before real-world crashes will enable these car functions to be better designed. This paper focuses on driver behavior and environmental conditions in emergency situations. Results are obtained from two complementary real-world crash samples. The first applies to 4215 car drivers involved in fatal car occupant crashes. The second survey focuses on 572 car drivers studied, case by case, on the scene of the accident, be teams of highly trained multidisciplinary investigators. Braking actions (from 16% to 61% according to conditions) prior to personal injury crash and steering wheel actions (from 5% to 49%) are discussed according to driver behavior, accident severity and road site. Patterns of driver steering wheel actions (maximum angle and mean velocity) are studied on the basis of available kinematics and cognitive accident reconstruction. Comparisons are made with experimental findings.