Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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THE BRIEF REVIEW OF SOME EXISTING METHODS FOR DETERMINING VEHICLE SPEED THE COLLISION

Vinogradova T.V. 1 Kulida J.V. 1
1 Saint-Petersburg State University of Architecture and Civil Engineering (SPSUACE)
The problem sufficiently precise definition of speed of the car before a collision is one of the most actual in expert practice. The known value of this parameter allows to establish who is the culprit of the accident (RTA) and whether the violation of traffic rules. There are several methods for determining the speed of the car before the collision with another vehicle. This article discusses: 1. Method based on the analysis of traces of braking, fixed on the pavement; 2. Method of determining the speed of the car at a known value of the coefficient of restitution of the colliding vehicles; 3. Method based on the determination of the resistance forces work to move the car in the process of discarding them after the collision; 4. Method of estimating the amount of deformation of the car bodies. This method is based on determination of kinetic energy expended in the development of the deformation and the determination of the velocity equivalent this energy costs. This article presents the main points of these methods, as well as possible shortcomings in determining the speed of cars.