汽车碰撞中乘员损伤成因分析与计算机仿真研究

目的运用计算机仿真技术模拟汽车碰撞过程,为法医学鉴定及交通事故处理提供参考依据。方法通过对汽车碰撞中乘员损伤成因分析及车辆痕迹检验,建立有效的人体、车辆仿真模型,利用动量冲量法与多刚体动力学结合仿真求解乘员运动模式,客观再现乘员交通伤特点。结果计算机仿真汽车碰撞过程中,人体模型上碰撞部位的分布符合法医学检验所得结果。结论计算机仿真求解乘员交通伤的方法在法医学鉴定和事故责任认定中具有参考价值。     

如何根据损伤痕迹检验分析交通肇事逃逸案件

在道路交通事故中,交通肇事逃逸事故是一种较为常见的类型,一般包括人-车碰撞事故和车-车碰撞事故。对于此类事故,通常需要借助对车体痕迹检验、人体衣物痕迹检验、微量物证检验、法医人体损伤检验、现场散落物整体分离痕迹检验等法庭科学技术以及运动学、动力学等物理学相关知识认定肇事车辆,判定车与车、车与人是否接触,推断接触部位及接触方式。     

计算机模拟再现道路交通事故特点分析

目的将计算机仿真技术应用于道路交通事故鉴定领域，实现道路交通事故发生过程及当事人致伤方式的重建。方法基于对事故现场痕迹、车辆损坏和人体损伤等检验鉴定，利用事故再现软件及高性能计算机计算分析，对40起真实事故的碰撞过程及致伤方式进行重建分析，并以2起典型案例进行说明。结果事故再现效果与现场痕迹、车辆痕迹、人体损伤痕迹有关；40起事故再现中．28起符合性好，9起较好，3起欠理想；碰撞过程的准确再现有助于对致伤方式进行分析。结论计算机仿真模拟重建道路交通事故的发生过程及当事人的致伤方式在辅助道路交通事故鉴定中具有应用价值。     

轿车与自行车碰撞事故仿真研究及骑车者致伤特点分析

目的研究计算机仿真技术重建自行车骑行状态下交通事故发生过程,并探讨此技术在分析真实事故中骑车者人体致伤方式、特点及损伤程度上的可行性。方法通过对事故人、车痕迹鉴定和模型建立,构建相关碰撞环境并利用高性能计算机及PC-Crash软件对事故进行再现研究。结果计算机仿真技术建立的人、车模型在模拟碰撞过程中,骑车者发生的运动过程、损伤分布及损伤动力学响应结果与法医学尸表检验人体损伤部位、程度基本吻合。结论利用计算机仿真技术重建自行车骑行状态下的事故碰撞过程、分析骑车者致伤方式及提供损伤部位动力学响应参数等,对于交通伤法医学鉴定及深化交通伤机制研究具有参考价值。     

1110例汽车驾驶员及乘员交通伤特点分析

目的比较道路交通事故中汽车驾驶员及乘员的损伤特点,为汽车安全设计及事故预防提供参考。方法选择2006～2009年受理的交通伤害案件中373例汽车驾驶员及737例汽车乘员的伤残评定资料进行回顾性分析,对损伤部位的分布,多发伤的数量以及伤残等级进行比较。结果驾驶员损伤部位明显较乘员多,肢体、胸腹损伤发生率明显较乘员高,脊柱损伤的发生率明显较乘员低;驾驶员身体左侧受伤的几率较右侧高,而乘员左右损伤差异不显著;两类人员损伤所致伤残等级腹部、盆部分布显著不同,而其他部位无显著差异,但胸部、脊柱部位高等级伤残构成比乘员略多于驾驶员。结论汽车驾驶员与乘员损伤部位、数量及部分部位的损伤致残程度有差异,值得汽车安全设计及交通管理部门参考。     

车外人员撞击伤特点分析

目的以真实案例为基础,研究汽车碰撞事故中,不同机动车车型、不同交通方式等因素造成车外人员撞击伤的特征。方法选取上海地区发生的汽车与车外人员碰撞事故案例200例,通过对事故中的人、车等检验对比,分析车外人员撞击伤的特点。结果车外人员撞击伤主要出现在下肢,其次为胸部和头部;行人（含推车人）撞击伤出现频次与骑车人（含自行车或摩托车后座乘员）无明显差异;小轿车和小客车事故中撞击伤多见于下肢,大客车多见于胸部;车外人员被撞击后发生抛甩频率随车速的加大而增高,且通过车体痕迹检验,人体与车辆挡风玻璃发生（二次）撞击伤匹配程度最高。结论分析汽车与车外人员碰撞事故人体撞击伤特点,对于交通伤法医学鉴定及深化交通伤机制研究具有参考价值。     

142例二轮摩托车驾乘人员损伤特征分析

目的分析二轮摩托车交通事故的现场特点和驾乘人员的损伤特征,为甄别摩托车驾乘人员提供信息。方法收集本区2005年至2014年142例二轮摩托车交通事故人员伤亡资料,包括事故经过、事故类型、现场特点、车辆特点、驾乘人员情况、损伤情况及死亡原因等相关资料,进行分析总结。结果二轮摩托车驾乘人员在各类型事故中的损伤部位和特征、出现率及严重程度有明显的区别,事故现场有规律性。结论通过现场与人体损伤特征的分析,可以甄别摩托车驾乘人员。     

两轮摩托车道路交通事故驾驶员损伤特点的观察

目的 观察两轮摩托车驾驶员发生道路交通事故时的损伤形成规律,探讨此类事故确定驾驶人员的法医学依据。方法 对2000年至2002年北京地区408例2人同乘一辆两轮摩托车发生事故造成摩托车人员伤亡的损伤情况进行回顾性研究。结果 两轮摩托车发生道路交通事故时,在驾驶员腹部、会阴部、大腿内侧、胸部、面颈部、小腿胫前会形成能反应摩托车特定致伤部件的特征性损伤,而乘员在这些部位的损伤多为摔跌形成,难以反应摩托车特定部件的特征。结论 在两轮摩托车道路交通事故中,伤者身上反应的摩托车特定部件的特征性损伤,可作为判断两轮摩托车道路交通事故驾驶员的依据。     

论道路交通事故处理中的车体痕迹鉴定

车体痕迹鉴定是确定事故中车辆的接触部位，认定肇事逃逸车辆，再现事故的发生过程的有效手段，为认定交通事故责任提供有力依据。要适应事故处理工作在新形势下的要求，科学地综合运用车体痕迹鉴定技术来为交通事故处理工作服务。     

车外人员与汽车碰撞事故现场痕迹特点分析

道路交通事故的发生是人、车、道路等因素综合作用的结果，碰撞过程中。三者之间在极短的时间内发生了强烈的相互作用，如制动、碰撞、损伤产生等。事故发生后。根据国家GA41—2005《道路交通事故痕迹物证勘验》标准规定。交通事故现场痕迹包括路面痕迹、车体痕迹、人体痕迹、其它痕迹等勘验是确定交通事故责任和成因的主要依据。本文研究中通过对200起车外无防御能力的道路使用者（行人、自行车、三轮车、摩托车）与汽车碰撞事故现场痕迹。如人一车一道路位置。车辆的制动印痕、行驶速度、碰撞痕迹，人体致伤特点等各种客观的信息参数．寻找易于提取、利于计算分析、有助于事故重建的现场痕迹参数特点。以此建立起基于现场痕迹信息综合处理的事故再现参数体系。为后续重建交通事故碰撞过程研究提供参考依据。     

Study of injuries combining computer simulation in motorcycle-car collision accidents

This paper presents the approach of computer simulation to clarify the questions faced by forensic experts about what causes the various injuries characteristic of two motorcycle victims, including the motorcycle driver and the back seat occupant on the motorcycle, and how to exactly confirm which one of them is the motorcycle driver. Two typical motorcycle-car accident cases were reconstructed to analyze the movement and the load of both the motorcycle driver and the back seat occupant in the collision course. In case one, the back seat occupant suffered fatal head injuries when he fell on the ground after being thrown higher than the motorcycle driver over the top of the car. In case two, the compressive force loaded by the right tibia of the back seat occupant was larger and more durative compared with the motorcycle driver; the back seat occupant suffered a bursting fracture injury of his right tibia. These results might be useful for forensic experts in dealing with similar motorcycle-car collision accidents in the future.     

两轮摩托车道路交通事故驾驶员损伤特征分析

目的找出两轮摩托车交通事故中多发于驾驶员而乘员较少发生的损伤特征,为查明案件提供线索。方法统计分析了有驾乘人员死亡的136例及有驾乘人员受伤的32例,以体表擦挫伤、挫裂伤或骨折作为统计对象,分别统计驾乘人员各部位发生损伤数并计算其出现的比例。结果驾驶员出现膝部损伤的比例（34．9％）高于乘员比例（i0．3％）,而驾驶员膝部损伤大多数发生在膝部前侧。结论膝部前侧损伤的当事人应高度怀疑其为真实驾驶员。     

基于交通事故痕迹的自行车行驶状态分析

在以非机动车中发展较快的自行车为例,基于从事故发生接触碰撞的机动车、非机动车和人等上面提取和检验得到的微量物质交换及其表面附着物等证据,提出了认定嫌疑车辆的方法,通过大量相关资料、事故现场案卷以及一些典型案例,将现场痕迹检验鉴定方法进行分类和汇总,主要分析、阐述车辆痕迹方面问题,进而重现事故现场。这为判定机动车与非机动车交通事故中非机动车行驶状态提供了方法和思路,提高了交通事故责任认定的准确性和公正性。     

Fatal bicycle accidents--causes and legal responsibility

Ninety-nine bicycle and motorcycle accidents were analyzed that had taken place from 1980 to 1984 in and around Frankfurt on the Main. The postmortem examinations were done in the Center of Forensic Medicine at the University of Frankfurt. Twenty-five percent of the bicycle riders were children up to the age of 15 years and 25% were elderly people over the age of 60. Most of the people involved in motorcycle accidents were between 17 and 24 years of age. The greatest amount of accidents took place in the summer, but in October there was also a peak. On weekdays, Thursday was the day when most of the accidents happened and Sunday showed the least. About 50% of the bicycle accidents happened in the city; 44% of the motorcyclists had lethal accidents on normal roads in the country. The most dangerous situation for bicycle riders was created by fast vehicles following them, but intersections proved to be a danger point, too. Nearly 40% of the motorcycle accidents were not caused by other vehicles. The most frequent cause of death was head injuries (45%), followed by injuries of the internal organs and spine. Many bicycle riders caused the accidents themselves (43.6%). Most of the fatal motorcycle accidents were caused by others (56%). In all of the cases studied, 30% of the participants involved had a relevant blood-alcohol concentration.     

The forensic pathologist and the determination of driver versus passenger in motor vehicle collisions. The need to examine injury mechanisms, occupant kinematics, vehicle dynamics, and trace evidence

Five cases of vehicular homicide are presented in which the determination of an occupant's role in a motor vehicle collision was an important medicolegal question. The identification of the occupant's role in a motor vehicle collision can be determined by the forensic pathologist. The investigation that coordinates an examination of injury mechanisms, occupant kinematics, vehicle dynamics, and trace evidence will facilitate such a determination. This determination protects the innocent passenger, when faced with criminal or civil charges, from being falsely prosecuted as the driver. The examination of the above-mentioned components in a multi-occupant collision takes on particular forensic importance when a surviving driver claims to be a passenger: the victim rather than the assailant.     

Exploring data protection challenges of automated driving

With the increase in automation of vehicles and the rise of driver monitoring systems in those vehicles, data protection becomes more relevant for the automotive sector. Monitoring systems could contribute to road safety by, for instance, warning the driver if he is dozing off. However, keeping such a close eye on the user of the vehicle has legal implications. Within the European Union, the data gathered through the monitoring system, and the automated vehicle as a whole, will have to be collected and processed in conformity with the General Data Protection Regulation. By means of a use case, the different types of data collected by the automated vehicle, including health data, and the different requirements applicable to the collecting and processing of those types of data are explored. A three-step approach to ensuring data protection in automated vehicles is discussed. In addition, the possibilities to ensure data protection at a European level via the (type-) approval requirements will be explored.     

Identification of the driver in two-rider motorcycle accidents. Inguinal contusion-laceration as an indication of the driver

In motorcycle accidents involving two riders, medicolegal identification of the driver is necessary when one or both riders die. It is particularly important in the latter case, because the survivor almost always insists that he or she was not driving. One characteristic injury that distinguishes the driver from the passenger is inguinal contusion-laceration (accompanied internally by pelvic fracture). This injury, caused by collision of the pelvis with the fuel tank, identifies the driver.     

Death by motorcycle: background, behavioral, and situational correlates of fatal motorcycle collisions

Motorcycle fatalities in the United States continue to increase on both crude and adjusted bases. This paper examines fatal motorcycle accidents as a cause of death, using a retrospective analysis of motorcycle operator fatalities from 2003 to 2008 in the state of Indiana. During these six years, out of more than 18,000 motorcycle operators in crashes, 601 were killed. Based on police report data, motorcycle operators during this period are examined to reveal key factors that are in place when a motorcyclist is killed in a collision. The major correlates of death identified were objects of impact, risky behaviors, and speed. The largest positive effects on the chances of death were linked to trees, posts-signs-poles, bridge-guardrail-median, and other motor vehicles. In conjunction with speed, these objects were the primary mechanisms by which fatal injuries were sustained by motorcyclists. Various types of risky behavior were also major correlates of death by motorcycle.     

The prevalence of drugs and alcohol found in road traffic fatalities: A comparative study of victims

Researchers have studied the involvement of drugs and alcohol in fatal road traffic incidents, but with particular emphasis on the possible impairment of the driver. This paper describes a comparative study of drug and alcohol findings in various victim groups (drivers of cars, vans or lorries, car passengers, motorcyclists, motorcycle passengers, cyclists and pedestrians) between 2000 and 2006. Post-mortem blood and urine specimens submitted were analysed by immunoassay, GC–NPD, GC–FID, GC–MS and HPLC–DAD. The results of 1047 cases indicated 54% of all victims were positive for drugs and/or alcohol, with the highest percentage of positive findings occurring in pedestrians (63%). Males between the ages of 17–24 were most likely to be involved in a road traffic accident, whether being in control of a vehicle (driver) or involved indirectly (car passenger, pedestrian, motorcycle passenger). A wide range of drugs were detected (e.g. drugs of abuse, anti-convulsants, anti-histamines, anti-inflammatories, anti-psychotics, cardiac drugs and over-the-counter products), but alcohol and cannabinoids were the most frequent substances across the victim groups. When detected, alcohol was commonly above the legal driving limit in blood and urine (> 63% in those in control and > 60% not in control). Overall, the presence of drugs and/or alcohol was of similar frequency in those victims in control (55% of driver, 48% of motorcyclists, 33% of cyclists) and not in control of a vehicle (52% of car passengers, 63% of pedestrians). This degree of frequency strongly implicates the involvement of drugs and alcohol in road traffic incidents and infers an effect on driving ability and individual impairment.