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http://dx.doi.org/10.12652/Ksce.2011.31.4D.539

Analysis about Speed Variations Factors and Reliability of Traffic Accident Collision Interpretation  

Lim, Chang-Sik (도로교통공단 부산지부)
Choi, Yang-Won (영산대학교 교통공학과)
Jeong, Ho-Kyo (도로교통공단 부산지부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.4D, 2011 , pp. 539-546 More about this Journal
Abstract
Traffic accident collision interpretation is composed of various shapes, and speed variations working to the vehicle during collision are utilized as a very important factor in evaluating collision degrees between vehicles and safety of passengers who got in the vehicle. So, methods of interpreting results on speed variations utilizing simulation programs on the collision interpretation become necessary. By the way, reliability evaluation on each program is being required because various collision interpretations simulations are spread widely. This study utilized collision interpretation programs such as EDSMAC and PC-CRASH adopting completely different physical approaches, and then carried out collision experiments of one-dimensional front and two-dimensional right angle while changing values of a lot of collision factors such as vehicle's weight, center of gravity, rolling resistance, stiffness coefficient, and braking forces among early input conditions. Also, the study recognized effects of collision factors to speed variations as output results during crashing. As a result of this research, two simulation programs showed same speed variations together on the vehicle's weight, center of gravity, and braking forces. Stiffness coefficient of the vehicle reacted to EDSMAC only, and rolling resistance coefficient did not affect any particular influences on speed variations. However, there appeared a bit comparative differences from the speed variation's values, and this is interpreted as responding outcomes by applying fixed properties values to each simulation program plainly. Therefore, reliability on analysis of traffic accident collisions shall be improved by doing speed analysis after taking the fixed value of simulation programs into consideration.
Keywords
traffic accident collision interpretation; speed variations factors; friction coefficient; rolling resistance; reliability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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