Analysis of the Damage of Cyclists in Electric Bicycle - Sedan Angle Collision

2020 ◽  
Vol 11 (1) ◽  
pp. 99-114 ◽  
Author(s):  
Min Yuan ◽  
Linpeng Hou ◽  
Hui Jing
Keyword(s):  
Human Body ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Motor Vehicle ◽  
Simulation Analysis ◽  
Euro Ncap ◽  
Electric Bicycle ◽  
The Moment ◽  
Bicycle Injury ◽  
Collision Angle

In order to study the vulnerable factors of the traffic accidents—the cyclist's injury factor at the moment of the accident—the computer simulation analysis method is used to restore the information collected by a real accident combined with the scene. From the established multi-rigid kinematics model, the corresponding injury situation of a body structure of a traffic accident rider is obtained, which involves the collision speed, the collision angle, the acceleration of each part of the human body and the force. The data is compared with ECE R44, FMVSS 213 and Euro NCAP 2009 regulations to analyze and restore various factors of bicycle injury in the collision. The results show that when the car and the non-motor vehicle have a low-angle collision, the cyclist's injury is mainly caused by the collision with the ground after the parabola movement, and the damage position of the human body depends on the order of contact with the ground.

The Analysis and Research of Traffic Accident Velocity Based on C#

2014 ◽  
Vol 505-506 ◽  
pp. 1137-1142
Author(s):  
Li Lin ◽  
Ting Ting Lv
Keyword(s):  
Traffic Accident ◽  
Traffic Accidents ◽  
Front Face ◽  
Vehicle Speed ◽  
Application Range ◽  
Collision Type ◽  
Side Collision ◽  
Speed Identification ◽  
Important Basis ◽  
Collision Angle

In the process of the traffic accidents confirmation, the identification of vehicle speed when accident occurred is often an important basis for accident confirmation. The paper firstly discusses the models of mechanics and solving method for the vehicle front face, rear end, sides face ,slanted side collision based on the theory of collision mechanics ,it describes how to identify the vehicle rate and collision angle based on the model simplification, the theoretical analysis for dealing with the complicated accidents. The common and formulas are studied based on the classical collision mechanics method. The application range, parameters involved in selection and influence of the formulas are analyzed in detail. Finally the program based on C# is developed according to the identified calculation process for vehicle speed of traffic accident. The vehicle speed is obtained by selecting the collision type, entering the relevant accident pattern, inputting the parameters and clicking the command button .The application can store, modify and display results conveniently , improve efficiency on vehicle speed identification effectively and reduce the processing cycle of traffic accident availably.

scholarly journals EXPERT APPROACH WHEN RESEARCHING CAUSES OF TRAMWAYS COMING-OFF FROM RAIL TRACKS (TURNOUTS)

2017 ◽  
Vol 17 ◽  
pp. 313-318
Author(s):  
P N. Khorobryh ◽  
A. О. Kazarov ◽  
V. O. Labintsev
Keyword(s):  
Road Traffic Accident ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Point Of View ◽  
Road Traffic Accidents ◽  
Technical Point ◽  
Automatic Mode ◽  
The Moment ◽  
The One

During investigation of road-traffic accidents with tramways participation, investigative bodies are interested in the causes which, from the technical point of view, could lead to coming-off of a tram from rails. In the paper the case in which two drivers of separate tram cars took part, is considered. Circumstances of road traffic accident consist in the following. During transit of the first tram through automated turnout in the moment when the first bogie of the first tram has already proceeded the switch, and the second has not yet, there was shift of a point rail, that is, there was a shift of rail for the movement in other direction. As a result of it the first bogie of the first tram has continued movement in the same direction, and the second bogi has started to move in another direction. In other words there has occurred turnout incut. In order to check operation of a turnout, various modes of its operation were simulated. Also experimental transits of tram cars were carried out. The obtained data has allowed to draw up a conclusion that the cause of the first tram coming-off from rails was a technical malfunction switch and coincidence of certain circumstances. That is, on the one hand, automatic moving ofpoint switch occurred only for tram movement to the left. On the other hand, the reason of the first tram descent from a railway was that the driver of the second tram has passed entrance harp during the moment when the first tram still was in a pass stage of switch. In article the algorithm of the specialist actions in a similar situation during carrying out of investigatory experiment is resulted and the list of questions solved at carrying out of switch researches, which works in an automatic mode at the moment of traffic accident occurrence is stated.

scholarly journals Application of Plane Homography for Vehicle Speed Calculations in Traffic Accident Investigations

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Qiang Chen ◽  
Hong-Guo Xu ◽  
Xiao-Feng Liu ◽  
Zhi-Wei Guan
Keyword(s):  
Traffic Accident ◽  
Traffic Accidents ◽  
Frame Rate ◽  
Vehicle Speed ◽  
Control Points ◽  
Surveillance Video ◽  
Perspective Image ◽  
Orthographic Image ◽  
Plane Homography ◽  
The Moment

The analysis of vehicle speeds at the moment of traffic accidents is becoming increasingly important. To solve difficult calculations arising from video analysis when the shooting direction of the camera is the same as the driving direction of the vehicles, an improved plane homography method is proposed. This method is based on detecting the frame rate of and extracting all of the key image frames from a surveillance video. Next, a normalizing approach for the control points is proposed to reduce the ill-conditions of matrix calculations when the perspective image is rectified to an orthographic image. The information in the rectified image is then measured and recorded by extracting the mark point information. Finally, the corresponding curve of time and speed for the examined vehicle is created, which can be used to analyze the average braking deceleration of the accident-causing vehicle. This method can directly determine the speed of a vehicle using videos of a traffic accident without any reference to the dimensions of the vehicle itself. Considering an actual traffic accident as an example, the driving trajectories and velocity curves for two vehicles are obtained using this method. The proposed method can effectively overcome the shortcomings of the commonly used speed recognition methods and it is easy to utilize.

Prediction Method of Motor Vehicle Traffic Accident Based on Support Vector Machine

2014 ◽  
Vol 631-632 ◽  
pp. 284-287
Author(s):  
Bo Yang ◽  
Li Na Zhang
Keyword(s):  
Social Influence ◽  
Index System ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Motor Vehicle ◽  
Rapid Development ◽  
Prediction Method ◽  
Living Standard ◽  
Support Vector ◽  
Vehicle Traffic

With the rapid development of economy and the improvement of people's living standard, there are more and more vehicles in China, with the increase of traffic accidents. In this paper, by analyzing the factors of social influence on motor vehicle traffic accident, we establish the index system, that is corresponding relationship of motor vehicle traffic accident and factors of social influence, According to this index system, design of motor vehicle traffic accident prediction method based on SVM. Based on the statistical data of social factors and motor vehicle traffic accident in 1985-2012 in china, to train the SVM model, at the same time, the kernel function and parameters of SVM used were setting and compared. The experimental results show that, the accuracy of the use of the RBF function is 97.2%, predicted by using time 95ms, with higher accuracy and faster computing speed.

scholarly journals The mechanism of injuring of front-seat passengers in head-on motor vehicle collisions: Forensic issues

2013 ◽  
Vol 141 (5-6) ◽  
pp. 409-414 ◽  
Author(s):  
Slobodan Nikolic ◽  
Veljko Strajina ◽  
Vladimir Zivkovic
Keyword(s):  
Traffic Accidents ◽  
Motor Vehicle ◽  
Road Traffic ◽  
Underlying Mechanism ◽  
Body Region ◽  
Front Seat ◽  
Body Regions ◽  
Expert Analysis ◽  
The Moment ◽  
Seating Position

Forensic pathologists sometimes need to determine seating positions of automobile occupants after road traffic accidents as accurately as possible. That could be of essential significance particularly in regard to the question of guilt both in the criminal and civil law. So far, medical surveys have implied the specific injury which would undoubtedly point at the allocation of the seating positions of fatally injured car occupant. Some of the injuries could occur by both direct and indirect force action. Same type of injury of the specific body region in both drivers and front seat passengers could occur by different mechanism and in different phases of the accident. Sometimes neither the order of injury occurrence remains unclear, nor whether some of the injuries are post?mortal. What makes it even harder is the fact that same body regions, i.e. head and thorax, are most affected in both drivers and front seat passengers, and that these injuries are often fatal. Even if the victim survives the accident for some time and later dies in hospital, the possibility of accident reconstruction and determination of car occupants seating position at the moment of accident declines with the time length of survival period. Examining the victims? clothes, searching for biological traces, technical expert inspection of the vehicle, traffic expert analysis of the site, enables adequate reconstruction of the traffic accident. All this implies that in such cases the knowledge of underlying mechanism of car occupants? injury is insufficient, and that a close cooperation between forensic pathologists and the team of other forensic technical experts is necessary.

scholarly journals Use of prehospital, hospitalization and presence of sequelae and/or disability in road traffic injury victims in Brazil

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249895
Author(s):  
Gabriela Camargo Tobias ◽  
Polyana Maria Pimenta Mandacarú ◽  
Rafael Alves Guimarães ◽  
Otaliba Libânio Morais Neto
Keyword(s):  
Road Traffic Accident ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Prehospital Care ◽  
Road Traffic Accidents ◽  
Factors Associated ◽  
The Road ◽  
Care Services ◽  
The Moment

Objective To estimate the prevalence and analyze the association between sociodemographic and behavioral variables with the use of prehospital care, hospitalization and sequelae and/or disability in victims of road traffic accidents victims in Brazil. Methods Data from the National Health Survey conducted in 2013 in Brazil were used. Data were collected through a direct household survey. The research sample consisted of 1,840 individuals who reported road traffic accidents in the previous 12 months. Poisson regression analysis was used to evaluate the factors associated with the use of prehospital care services, hospitalization, and the presence of sequelae and/or disability. Results The prevalence of road traffic accidents victims who received prehospital care was 13.0% (95% Confidence Interval [95% CI]: 10.3–16.3) and the factors associated with this outcome were: residing in the Northeast or North region of Brazil; residing in rural areas; and being a motorcycle occupant at the moment of the road traffic accident. The frequency of hospitalization was 7.7% (95% CI: 6.0–10.0) and the associated factors were: age between 40 and 59 years; being a motorcycle occupant or pedestrian and having received on-site care at the moment of the road traffic accident. The prevalence of sequelae and/or disability was 15.1% (95% CI: 12.5–18.2) and the associated factors were: age range between 30 and 39 years or 40 and 59 years; being a motorcycle occupant, being a pedestrian or belonging to other category of modes of transport and having received on-site care at the moment of the road traffic accident. Conclusion The study allowed to evaluate the factors associated with prehospital care, hospitalization and presence of sequelae and/or disability in the victims of road traffic accident and the results can guide the implementation of interventions that prioritize the population exposed to the highest risk of road traffic accident injuries and with less access to prehospital and hospital care services in Brazil.

scholarly journals Electric Bicycle Lane-Changing Behavior under Strategy Games

2018 ◽  
Vol 10 (9) ◽  
pp. 3019
Author(s):  
Haipeng Shao ◽  
Jiangping Wang ◽  
Yin Wang ◽  
Sitian Chen
Keyword(s):  
Traffic Accidents ◽  
Motor Vehicle ◽  
Complete Information ◽  
Motor Vehicles ◽  
Risk Level ◽  
Lane Changing ◽  
Strategy Model ◽  
Before And After ◽  
Electric Bicycle ◽  
Electric Bicycles

The random lane-changing behavior of electric bicycles brings a great safety hazard to urban transportation: According to the national traffic accident statistics in 2015, 8.22% of traffic accidents are caused by non-motor vehicle violations. Among them, the accident rate caused by electric bicycles is as high as 78%. In order to effectively analyze and quantify the risk of this lane-changing behavior, based on the non-cooperative strategy model under complete information, a Z-test of the speed before and after the “illegal” lane-changing behavior was carried out by using the data of the mixed-flow sections of Xi’an city. Constructing the judgment matrix to determine the weight value of motor vehicles’ game strategy and constructing the charge matrix, the utility income analysis of the electric bicycle and the affected motor vehicle is made by using the payment function, and the exceeding conflict model is established to quantify the risk level of the conflict number in the unit road. It is verified that the “illegal” lane-changing behavior of electric bicycles is a goal-oriented behavior for obtaining greater desired speed.

INVESTIGATING TRAFFIC ACCIDENTS: A COLLISION OF TWO MOTOR VEHICLES

Transport ◽  
2010 ◽  
Vol 25 (2) ◽  
pp. 105-115 ◽  
Author(s):  
Olegas Prentkovskis ◽  
Edgar Sokolovskij ◽  
Vilius Bartulis
Keyword(s):  
Traffic Safety ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Motor Vehicle ◽  
Motor Vehicles ◽  
Normal Operation ◽  
Vehicle Collision ◽  
Simulation Based ◽  
Accident Simulation ◽  
Vehicle Motion

Traffic safety may be ensured by normal operation of all elements of the system, including the driver, a motor vehicle and transportation medium. Insufficient safety of some particular elements of this system (the lack of discipline of the participants of traffic, poor technical state of a motor vehicle or road, etc.) are the main causes of traffic accidents. Statistical data on traffic accidents in 2000–2009 in Lithuania is presented. Collisions of motor vehicles in 2009 make one of the largest proportion of all traffic accidents ‐ 33.4%. In 2009 drivers, were the main traffic accident perpetrators ‐ 73.6%. The paper considers some major aspects of motor vehicle collision simulation based on the application of PC‐CRASH software, allowing researchers to analyze the changes in the direction of motor vehicle motion in the case of a collision and the influencing factors. This type of traffic accident simulation consists in studying the circumstances of collision, reconstructing the processes, calculating the pre‐impact speed of motor vehicles and deter‐ mining various parameters of motor vehicles’ movement at different stages of traffic accident development.

scholarly journals PRINSIP TANGGUNG JAWAB PENGANGKUT DAN ASURANSI GANTI RUGI TERHADAP KORBAN KECELAKAAN PENUMPANG UMUM DI JALAN RAYA

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Mig Irianto Legowo
Keyword(s):  
Traffic Accident ◽  
Normative Data ◽  
Traffic Accidents ◽  
Motor Vehicle ◽  
Road Traffic ◽  
Road Traffic Accidents ◽  
Analysis Method ◽  
Research Type ◽  
Insurance Compensation ◽  
The Way

<div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>Responsibility of Carriers for accident victims on the highway and how the process of providing compensation by PT Persero Raharja insurance services, as well as problems that arise in the maintenance of obtaining compensation insurance (compensation). The type of research used is normative juridical research type. The analytical method used is a qualitative normative data analysis method. The results of the study can be concluded: 1) Responsibility for the error of the Carrier is carried out as a family. While compensation for PT. (Pesero) Jasa Raharja's Loss Insurance is determined by the way of handling, namely by the way the victim or heir comes to Jasa Raharja's office to request the K1 form (for accidents hit by a motor vehicle) or K2 (for public passenger accidents), which is filled in correctly and fulfills conditions: information on road traffic accidents by the police, doctor's statement, and heir's statement if the victim dies and if the conditions are met correctly then the implementation of compensation will be able to run smoothly, provided it is guaranteed by Law No. 34 of 1964 jo. PP No. 18 of 1965. 2). The obstacles that exist in the implementation of Law No. 34 of 1964 concerning: Road Traffic Accident Funds are derived from victims or heirs of the victims in the form of community reluctance to take care of claims for compensation, this is due to the fear of dealing with authorities or state officials </span></p></div></div></div>

scholarly journals Method of Light Bulbs Analysis on Vehicles Damaged in Traffic Accidents

2012 ◽  
Vol 22 (4) ◽  
pp. 259-271 ◽  
Author(s):  
Rajko Horvat ◽  
Berislav Barišić-Jaman ◽  
Gordan Mršić ◽  
Igor Špoljarić ◽  
Andro Vrdoljak ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Scientific Research ◽  
Time Of Day ◽  
Light Bulb ◽  
The Road ◽  
Road Traffic Safety ◽  
The Moment

One of the measures to increase road traffic safety in Croatia is the introduction of obligatory use of daily lights on vehicles in road traffic during driving, regardless of the visibility and the time of day. The paper describes the new original technical and technological procedure of analysing automotive light bulbs in order to find the traces of glass particles of the broken glass balloon in the marginal cases of action of small inertia forces generated as result of a traffic accident. Investigations of light bulbs in traffic accidents had been rarely done before; therefore the subject of this scientific research is the analysis of the light bulb filament used in automobiles to light the road ahead and to give light signals, i.e. all the light signalling devices on the automobile using the new technical and technological procedure by means of SEM/EDX method. The scientific research has improved the investigation procedure in analysing the light bulbs on automobiles in determining whether at the moment of the traffic accident the regulatory lights were switched on. In determining the responsibility of participants for causing the traffic accident, such a fact may sometimes be of crucial significance. KEY WORDS: traffic accident, light bulb, technical and technological procedure, lights in traffic, microscope, molten glass particles

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