scholarly journals Bicycle braking process

2018 ◽  
Vol 19 (6) ◽  
pp. 115-120
Author(s):  
Robert Kałuża ◽  
Piotr Czech ◽  
Tomasz Figlus ◽  
Piotr Gustof ◽  
Katarzyna Turoń
Keyword(s):  
Traffic Accident ◽  
The State ◽  
Road Accidents ◽  
Traffic Police ◽  
Police Statistics ◽  
Braking Distance ◽  
Braking Process ◽  
Court Practice

As a result of the increase in the number of vehicles traveling on Polish roads, the state of security has changed significantly in recent years. The risk of a collision or traffic accident has increased as a result of increased traffic. Police statistics show that one of the participants in the collision are people who are cycling. In court practice, when dealing with cases relating to road accidents involving bicycles, it is often necessary to determine the behavior of the driver at the time before the event occurred. For this purpose, knowledge about the braking distance achieved or the braking time of the bicycle can be useful. The article presents the results of testing the braking process of various types of brake systems and bicycles.

The Analysis of the Key Problems about Traffic Accident Speed Identification Based on Braking Traces

2013 ◽  
Vol 756-759 ◽  
pp. 4752-4757
Author(s):  
Zhi Wei Guan ◽  
Shao Hua Wang ◽  
Wei Qiang Liang ◽  
Ming Feng Zheng ◽  
Lin Wu ◽  
...  
Keyword(s):  
Traffic Accident ◽  
Performance Test ◽  
National Standard ◽  
Test Report ◽  
Actual Case ◽  
Braking Performance ◽  
Braking Distance ◽  
Braking Process ◽  
Judicial Expertise ◽  
Speed Identification

In order to improve the impartiality and objectivity of judicial expertise, the key problems about traffic accident speed identification are analyzed and the speed of vehicle is calculated by using the braking performance test report with reference to the national standard and automobile theory. The automobile dynamics of driver braking process is analyzed, all kinds of key problems such as the braking distance, braking coordination time, braking speed, longitudinal sliding coefficient of adhesion are combined with the braking performance test report, and the method of determining the longitudinal sliding coefficient of adhesion is proposed, the instantaneous velocity before the collision is calculated. Finally, the method is used to calculate the speed of an actual case, and simulated in the software of PC-Crash, the results are consistent, verifying that the speed identification method is correct.

scholarly journals The Potential of Integrated Video and Vehicle Forensic Investigation

2019 ◽  
Vol 14 (2) ◽  
pp. 67-83 ◽  
Author(s):  
S. S. Zharkikh ◽  
A. A. Godlevskii ◽  
S. A. Krivoshchekov
Keyword(s):  
Road Traffic Accident ◽  
Traffic Accident ◽  
Road Traffic ◽  
The State ◽  
Road Accidents ◽  
Forensic Investigation ◽  
Integrated Research ◽  
Forensic Institutions

In some cases, the material provided for a forensic vehicle examination may be insufficient to answer the questions placed before the experts. However, sometimes there are some multimedia files presented which by means of forensic video examination can help to discover the information missing for implementation of the vehicle expertise. This article reviews the potential of forensic video and vehicle investigations when conducting an integrated research including the investigation of circumstances of a road traffic accident. The examples from the state experts’ practice of the forensic institutions of the Russian Ministry of Justice are provided. This review is intended to introduce the video experts and the vehicle experts to the opportunities there are in the integrated research of the mechanism of road accidents.

Estimation of socio-economic national losses as a result of road accidents in russia

2016 ◽  
pp. 131-146 ◽  
Author(s):  
D. Kolesnikova ◽  
T. Karabchuk ◽  
D. Salnikova ◽  
T. Fattahov
Keyword(s):  
Road Traffic Accident ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Public Investment ◽  
Road Traffic Accidents ◽  
Road Accidents ◽  
Car Accidents ◽  
Police Statistics ◽  
Specific Evaluation

Every thirty minutes a person dies in a road traffic accident in Russia. Twenty five thousand people die annually, which is equivalent to the middle-populated city in the country. According to Traffic Police Statistics, much more people get wounded or disabled in road accidents. In order to reduce the number of deaths in car accidents it is necessary to implement specific measures, which require substantial public investment. Hence the relevance of more specific evaluation of socio-economic national losses arising because of death, disablement and traumatism in road traffic accidents. To make this possible, the authors have worked out the efficient methodology for estimating socio-economic national losses as a result of road accidents. According to our analysis, the total value of such losses equals 487.1 billion RUB in 2013.

Road barriers: modern solutions for improving traffic safety

2021 ◽  
pp. 43-48
Author(s):  
Keyword(s):  
Traffic Safety ◽  
Traffic Accident ◽  
Preventive Measures ◽  
Mechanical Damage ◽  
Road Accidents ◽  
Road Users ◽  
Urgent Task ◽  
The Moment ◽  
Energy Absorbing ◽  
The Impact

Improving the system of preventive measures aimed at reducing the severity of the consequences of road accidents is an urgent task. Road deaths are constantly increasing and there is a need for a comprehensive approach to creating safe road conditions. The purpose of this study is to analyze the promising designs of road barriers designed to prevent uncontrolled exit of vehicles from the roadway of the highway and to develop the design of energy-absorbing fencing. Barrier barriers must not only be safe for road users, but must also ensure their safety, as well as preserve the elements after hitting the fence. Analytical studies have shown that in order to reduce mechanical damage to vehicles and reduce the severity of injuries to the driver and passengers, it is necessary to develop a road fence design that allows you to extinguish the impact energy at the moment of contact between the car and the fence. Keywords: fencing, barrier, safety, traffic accident

scholarly journals Surface tyre imprints caused by a motorcycle collision rather than by being run over

2018 ◽  
Vol 59 (1) ◽  
pp. 4-8
Author(s):  
Ning Xiao ◽  
Sheng-Dong Li ◽  
Xue Zhang ◽  
Yan-Geng Yu ◽  
Fu Zhang ◽  
...  
Keyword(s):  
Traffic Accident ◽  
Motor Vehicle ◽  
Forensic Autopsy ◽  
Surveillance Videos ◽  
Traffic Police ◽  
The Road

Tyre imprints on the skin are usually considered to be the result of being run over by a motor vehicle. This article reports a traffic accident in which tyre marks on the victim’s skin were caused by a collision rather than by being run over. The mechanism of the injury in this case is analysed and discussed. A 23-year-old male drove a motorcycle while under the influence of alcohol and collided with a sign pillar on the side of the road. Both the victim and the motorcycle careened into the bottom of a tractor-trailer. No witnesses or surveillance videos could confirm the process of the accident. Because tyre imprints were found on the victim’s skin, traffic police believed that he had been run over during the accident. However, forensic autopsy and analysis of the accident process revealed that the true cause of the imprints was a collision between the victim’s body and a tyre.

scholarly journals TRAFFIC-RELATED MORTALITY IN MOLDOVA

2020 ◽  
pp. 140-147
Keyword(s):  
Life Expectancy ◽  
Traffic Accident ◽  
Traffic Accidents ◽  
Road Traffic ◽  
Road Accident ◽  
Road Accidents ◽  
Continuous Increase ◽  
Risk Of Death ◽  
Significant Difference ◽  
Related Mortality

This article analyses the mortality caused by road accidents in Moldova depending on the degree of involvement of pedestrians, cyclists, motorcyclists, drivers and passengers of transport units, depending on age and sex. Results suggest that traffic-related mortality in Moldova has shown an increased incidence among the young and working-age population, where a significant difference between males and females is observed. Among the youth, traffic-related deaths register between 10-27% of the overall mortality in both sexes. The risk exposure of dying in a traffic accident decreases with age and is less significant in the retired ages. During the years 1998-2015, avoidance of trafficrelated deaths would have assured an increase in life expectancy between 0.40-0.56 years in males, and 0.09-0.23 years in females. The continuous increase in the number of transport units on public roads, as well as in the number of hours spent in traffic, influences the degree of exposure to the risk of death or injury as a result of road traffic accidents. Trauma resulting from road accidents increases the incidence of premature mortality and disability among the population, which is reflected by the decrease of healthy life expectancy. It is ascertained that the road accident mortality requires a detailed and comprehensive analysis given the multitude of factors influencing deaths and injuries related to a traffic accident among the population. Thus, in order to improve road safety and reduce mortality incidence among traffic participants, a range of actions has to be implemented by the liable actors, including through the international experience.

PREVENTION OF ADMINISTRATIVE OFFENSES IN THE FIELD OF ROAD TRAFFIC BY THE INTERNAL AFFAIRS BODIES

2021 ◽  
pp. 38-40
Author(s):  
А.Р. Исмагилова
Keyword(s):  
Traffic Safety ◽  
Road Traffic ◽  
The State ◽  
Road Accidents ◽  
The Road ◽  
Internal Affairs ◽  
On The Road

В статье раскрываются полномочия сотрудников подразделений пропаганды Государственной инспекции безопасности дорожного движения в целях профилактики дорожно-транспортных происшествий и травматизма на дороге. The article reveals the powers of the employees of the propaganda units of the State Traffic Safety Inspectorate in order to prevent road accidents and injuries on the road.

Augmenting Classifiers Performance through Clustering

2018 ◽  
Vol 8 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Sachin Kumar ◽  
Prayag Tiwari ◽  
Kalitin Vladimirovich Denis
Keyword(s):  
Traffic Accident ◽  
Latent Class ◽  
Safety Concern ◽  
Health And Safety ◽  
Road Accident ◽  
Support Vector ◽  
Road Accidents ◽  
Real World Data ◽  
The Public ◽  
Accident Data

Road and traffic accident data analysis are one of the prime interests in the present era. It does not only relate to the public health and safety concern but also associated with using latest techniques from different domains such as data mining, statistics, machine learning. Road and traffic accident data have different nature in comparison to other real-world data as road accidents are uncertain. In this article, the authors are comparing three different clustering techniques: latent class clustering (LCC), k-modes clustering and BIRCH clustering, on road accident data from an Indian district. Further, Naïve Bayes (NB), random forest (RF) and support vector machine (SVM) classification techniques are used to classify the data based on the severity of road accidents. The experiments validate that the LCC technique is more suitable to generate good clusters to achieve maximum classification accuracy.

‘The Pots on Our Roads’

2014 ◽  
Vol 7 (1) ◽  
pp. 63-88
Author(s):  
Gerald Chikozho Mazarire ◽  
Sandra Swart
Keyword(s):  
Chaotic System ◽  
The State ◽  
City Council ◽  
The Self ◽  
Traffic Police ◽  
Regulatory Instruments ◽  
History Of ◽  
Vehicle Fleet ◽  
The City

This article explores the role of the ‘diaspora fleet’ in Harare’s urban commuter system. Imported vehicles in the form of haulage trucks and commuter buses were one of the popular and visible forms of diasporic investment over Zimbabwe’s difficult decade spanning from 2000 to about 2010. The article argues that this diaspora fleet occupies a significant place in the history of commuting in Harare. Diasporic investment introduced a cocktail of European vehicles that quickly became ramshackle and ended up discarded in scrap heaps around the city. These imports and the businesses based on them destroyed the self-regulatory framework existing in the commuting business. This disruption was facilitated by the retreat or undermining of the state and city council regulatory instruments, which in turn created a role for middlemen, who manoeuvred to perpetuate a new and chaotic system known as ‘mshika-shika [faster-faster]’, based on a culture of irresponsible competitive gambling. This chaotic system remains in place today to the chagrin of city council planners and traffic police. Its origins, we argue, lie in the cultures and practices introduced by the diasporan vehicle fleet.

Childhood cycling fatalities in South Australia before and after the introduction of helmet legislation

2020 ◽  
Vol 60 (3) ◽  
pp. 196-199
Author(s):  
Siobhan O’Donovan ◽  
Corinna van den Heuvel ◽  
Matthew Baldock ◽  
Roger W Byard
Keyword(s):  
Traffic Accident ◽  
Reporting System ◽  
Marked Decrease ◽  
South Australia ◽  
The State ◽  
Bicycle Helmet ◽  
Societal Factors ◽  
Legislative Change ◽  
System Database ◽  
Before And After

In the years following the introduction of legislation in Australian states mandating the wearing of helmets, there was a decline in the number of deaths. Debate has occurred, however, as to why this occurred. The Traffic Accident Reporting System database, which records data for all police-reported crashes in South Australia, was searched for all cases of deaths occurring in the state in bicycle riders aged ≤14 years from January 1982 to December 2001. The numbers of deaths were then compared over the 10-year periods before (1982–1991) and after (1992–2001) the introduction of helmet legislation, and also on a yearly basis from 1982 to 2001. Comparing the numbers of deaths in the two periods before and after helmet legislation in 1991 showed a marked decrease in cases from 36 to 12. However, in examining the numbers of deaths per year in greater detail, it appears that these were already steadily reducing from nine cases per year in 1982 (2.9/100,000) to two cases in 1991 (0.67/100,000) to a virtual plateau after 1991 (ranging from 0 to 2 cases annually). It seems that the introduction of compulsory bicycle helmet wearing in South Australia came at a time when the numbers of child cyclist deaths had been steadily declining over the preceding decade. While helmet wearing clearly protects children who are still riding bicycles, the reasons for the reduction in numbers of deaths appears more complex than legislative change and likely involves a subtle interaction with other behavioural and societal factors and preferences.

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