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http://dx.doi.org/10.5762/KAIS.2021.22.2.514

The Estimation of Collision Speed at the Intersection using Simulation  

Han, Chang-Pyoung (Department of Smart Automobile Engineering, Sangji University)
Cheon, Jeong-Hwan (Korea Road Traffic Authority)
Choi, Hong Ju (Department of Electronic Engineering, Sangji University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.2, 2021 , pp. 514-521 More about this Journal
Abstract
When calculating an intersection collision speed using a formula, it is very difficult to grasp the degree of deceleration of a vehicle after the collision unless there is road surface trace in the entire section where each vehicle moved from the point of collision to their final positions after the collision. A vehicle's motion trajectory shows an irregular curve after a collision due to the effects of inertia based on the driving characteristics of the vehicle, the eccentric force according to the collision site, and the collision speed. Therefore, it is very important to set the appropriate departure angle after a collision for accurate collision speed analysis. In this study, based on experimental collision data using a computer simulation (PC-Crash), the correlation between an appropriate vehicle departure angle and the post-collision speed was analyzed, and then, a regression analysis model was derived. Through this, we propose a method to calculate collision speed by applying only the vehicle departure angle in some types of collisions for traffic accidents at intersections.
Keywords
Intersection traffic accidents; Collision speed; Departure angle; Computer simulation; Regression analysis model formula;
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