检索结果-南通市图书馆

A Human Active Lower Limb Model for Chinese pedestrian safety Evaluation

Journal of Bionic Engineering 2021年第4期18卷 872-886页

作者： Fuhao Mo Dian Luo Zheng Tan Bo Shang Xiaojiang Lv Donghua Zhou State Key Laboratory of Advanced Design and Manufacture for Vehicle Body Hunan UniversityHunan 410082China School of Mechanical Engineerings Hunan University of Science and Technology Xiangtan 411201China Pan Asia Technical Automotive Center Co. LtdShanghai 201201China Zhejiang Key Laboratory of Automobile safety Technology Geely Automobile Research InstituteNingbo 315336China Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic ScienceMinistry of JusticeShanghai 200063China

A subsystem impactor test for pedestrian lower limb injury evaluation has been brought in China New Car Assessment Protocol(CNCAP).Concerning large anthropometric differences of the people from different countries,the present study aims to establish and validate a finite element lower limb model representing 50th Chinese male size for pedestrian safety research,then compare its biomechanical responses with the general models currently in wide use in the world for pedestrian safety *** the vehicle-pedestrian impact loading environment,the previously developed lower limb model with three-dimensional muscles was adjusted and validated through the related ***,the biomechanical responses of the validated model were compared with the Total Human Model for safety(THUMS)and Advanced pedestrian Legform Impactor(aPLI)models by combing with four typical *** results showed that both consistency and significant differences of biomechanical responses existed between the present model and the other two *** injury measurements of the thigh region of the present model showed extremely large differences with the other two models,while the tibia and Medial Collateral Ligament(MCL)injury measurements show similar ***,it can be concluded that directly using the aPLI or THUMS models for Chinese pedestrian safety evaluation is not robust concerning both kinematic responses and injury measurements.

关键词： lower limb injury biomechanics human body modeling pedestrian safety finite element analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Design and evaluation of V2X communication system for vehicle and pedestrian safety

引用

The Journal of China Universities of Posts and Telecommunications 2015年第6期22卷 18-26页

作者： Liu Zhenyu Pu Lin Zhu Konglin Zhang Lin School of Information and Communication Engineering Beijing University of Posts and Telecommunications

As the vehicles gain the extensive popularity and increasing demand, traffic accident is one of the most serious problems faced by modem transportation system. Hereinto, crashes between cars and pedestrians cause plenty of injuries and even death. Diverting attention from walking to smartphones is one of the main reasons for pedestrians getting injured by vehicles. However, the traditional measures protecting pedestrians from the vehicles heavily rely on the sound warning method, which do not capable for pedestrians focusing on the smartphones. As the smartphones become ubiquitous and intelligent, they have the capacity to provide alert for the pedestrians with the help of vehicle-to-pedestrian （V2P） communication. In this paper, an efficient vehicle-to-X （V2X） communication system is designed for the vehicle and pedestrian communication to guarantee the safety of people. It achieves the IEEE 802.11p and the WiFi protocols meanwhile on the on-board unit （OBU） designed for vehicles. Extensive evaluation shows that the OBU can provide the reliable communication for vehicle-to-vehicle （V2V） and V2P in terms of packet delivery rate and average delay. Furthermore, two safety applications have been developed to protect the safety of vehicles and pedestrians based on the data transferred from the OBU. The first application is designed to show the driving information and provide the collision forewaming alert on the tablet within the vehicle. The second application is developed for the smartphone to provide forewarning alert information to the smartphone-distracted vulnerable pedestrians. Smartphone states are appreciable to provide the adaptive alert modes. Experimental results show that these applications are capable of alerting the intersection accidents, and the pedestrians can get the adaptive alerts according to smartphone usage contexts.

关键词： V2X communication system pedestrian safety vehicle safety on board unit smartphone collision forewarning +

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Measuring pedestrian Stress Response (MPSR) Using Wearable Technologies

引用

Journal of Transportation Technologies 2024年第2期14卷 224-235页

作者： Ishita Dash Rachael Anne Muscatello Mark D. Abkowitz Ella R. Mostoller Mike Sewell Department of Civil and Environmental Engineering Vanderbilt University 2301 Vanderbilt Place Nashville USA Department of Psychiatry and Behavioral Sciences SENSE Lab Vanderbilt University Medical Center 1211 Medical Center Drive Nashville USA Gresham Smith 111 West Main Street Suite 201 Louisville USA

Walkability is an essential aspect of urban transportation systems. Properly designed walking paths can enhance transportation safety, encourage pedestrian activity, and improve community quality of life. This, in turn, can help achieve sustainable development goals in urban areas. This pilot study uses wearable technology data to present a new method for measuring pedestrian stress in urban environments and the results were presented as an interactive geographic information system map to support risk-informed decision-making. The approach involves analyzing data from wearable devices using heart rate variability (RMSSD and slope analysis) to identify high-stress locations. This data-driven approach can help urban planners and safety experts identify and address pedestrian stressors, ultimately creating safer, more walkable cities. The study addresses a significant challenge in pedestrian safety by providing insights into factors and locations that trigger stress in pedestrians. During the pilot study, high-stress pedestrian experiences were identified due to issues like pedestrian-scooter interaction on pedestrian paths, pedestrian behavior around high foot traffic areas, and poor visibility at pedestrian crossings due to inadequate lighting.

关键词： Wearable Technology Walkability Built Environment pedestrian safety

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Workable Solution for Reducing the Large Number of Vehicle and pedestrian Accidents Occurring on a Yellow Light

引用

Journal of Transportation Technologies 2024年第1期14卷 82-87页

作者： Pranav Gupta Silki Arora Drive Safe Now Ottawa Canada

Traffic intersections are incredibly dangerous for drivers and pedestrians. Statistics from both Canada and the U.S. show a high number of fatalities and serious injuries related to crashes at intersections. In Canada, during 2019, the National Collision Database shows that 28% of traffic fatalities and 42% of serious injuries occurred at intersections. Likewise, the U.S. National Highway Traffic Administration (NHTSA) found that about 40% of the estimated 5,811,000 accidents in the U.S. during the year studied were intersection-related crashes. In fact, a major survey by the car insurance industry found that nearly 85% of drivers could not identify the correct action to take when approaching a yellow traffic light at an intersection. One major reason for these accidents is the “yellow light dilemma,” the ambiguous situation where a driver should stop or proceed forward when unexpectedly faced with a yellow light. This situation is even further exacerbated by the tendency of aggressive drivers to inappropriately speed up on the yellow just to get through the traffic light. A survey of Canadian drivers conducted by the Traffic Injury Research Foundation found that 9% of drivers admitted to speeding up to get through a traffic light. Another reason for these accidents is the increased danger of making a left-hand turn on yellow. According to the National Highway Traffic safety Association (NHTSA), left turns occur in approximately 22.2% of collisions—as opposed to just 1.2% for right turns. Moreover, a study by CNN found left turns are three times as likely to kill pedestrians than right turns. The reason left turns are so much more likely to cause an accident is because they take a driver against traffic and in the path of oncoming cars. Additionally, most of these left turns occur at the driver’s discretion—as opposed to the distressingly brief left-hand arrow at busy intersections. Drive Safe Now proposes a workable solution for reducing the number of accidents occ

关键词： Traffic Accidents Yellow Light Traffic Light Signals Intersection Crashes Collision Traffic Fatalities Traffic Injuries Vehicles safety Speed Limit Driving pedestrians Bicyclists Motorcyclists Caution Line Yellow Light Dilemma Left Hand Turn on Yellow Distance Smart Road Technology Signs Signage Autonomous Vehicles AVs Road safety IoT Internet of Things Infrastructure Accident Reduction Driving Habits Stop Line Red Light Jumping pedestrian safety Caution Light Stopping at Intersection safety at Intersections

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Lower extremity injuries in vehicle-pedestrian collisions using a legform impactor model

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第2期11卷 97-105页

作者： A.ABVABI A.NASR A.NOORPOOR M.S.KIASAT Department of Automotive Engineering Iran University of Science and TechnologyTehranIran School of Railway Engineering Iran University of Science and TechnologyTehranIran Faculty of Marine Technology Amirkabir University of TechnologyTehranIran

Though the bumper of a vehicle plays a major role in protecting the vehicle body against damage in low speed impacts, many bumpers, particularly in large vehicles, are too stiff for pedestrian protection. In designing a bumper for an automobile, pedestrian protection is as important as bumper energy absorption in low speed collisions. To prevent lower extremity injuries in car-pedestrian collisions, it is important to determine the loadings that car front structures impart on the lower extremities and the mechanisms by which injury is caused by these loadings. The present work was focused on gaining more insight into the injury mechanisms leading to both ligament damage and bone fracture during bumper-pedestrian collisions. The European Enhanced Vehicle-safety Committee （EEVC） legform impactor model was introduced and validated against EEVCAVG17 criteria. The collision mechanism between a bumper and this legform impactor was investigated numerically using LS-DYNA software. To identify the effect of the bumper beam material on leg injuries, four analyses were performed on bumpers that had the same assembly but were made from different materials.

关键词： Finite element model (FEM) Legform impactor pedestrian safety Lower extremity injury Composite bumper

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Using multi-agent simulation to predict natural crossing points for pedestrians and choose locations for mid-block crosswalks

引用

Geo-Spatial Information Science 2020年第4期23卷 362-374页

作者： Egor Smirnov Sergei Dunaenko Sergei Kudinov Institute for Design and Urban Studies ITMO UniversitySaint PetersburgRussia

When arranging the pedestrian infrastructure,one of the most important components that make a tangible contribution to the safety of pedestrians is to organize the safe road *** cities,pedestrians often cross a road in the wrong place due to established routes or inadequate location of *** with the participation of pedestrians who crossed the road neglecting the traffic rules,make up a significant part of the total amount of road *** this paper,we propose a method that allows us,on the basis of the results of a computer simulation of pedestrian traffic,to obtain predicted routes for road crossing and to indicate optimal locations for crosswalks that take into account established pedestrian routes and increase their *** work describes an extension for the existing AntRoadPlanner simulation algorithm,which searches for and clusters points where pedestrians cross the roadway and suggests locations for new *** method was tested on the basis of a comparative simulation of several territories before and after its application,as well as on the basis of a field study of the *** developed algorithm can also be used to search for other potentially dangerous places for pedestrians on plans of districts,for example,crossings in places with limited visibility.

关键词： Agent-based modeling computer simulation pedestrian traffic simulation ant road planner pedestrian infrastructure crosswalks pedestrian safety

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Computer Graphics-Based Framework for 3D Pose Estimation of pedestrians

引用

Automotive Innovation 2021年第3期4卷 338-349页

作者： Jisi Tang Qing Zhou State Key Laboratory of Automotive safety and Energy School of Vehicle and MobilityTsinghua UniversityBeijing 100084China

In pedestrian-to-vehicle collision accidents,adapting safety measures ahead of time based on actual pose of pedestrians is one of the core objectives for integrated *** can significantly enhance the performance of passive safety system when active safety maneuvers fail to avoid *** study proposes a deep learning model to estimate 3D pose of pedestrians from *** conventional pedestrian image datasets do not have available pose features to work with,a computer graphics-based(CG)framework is established to train the system with synthetic *** 3D meshes of standing males are first transformed into several walking poses,and then rendered as images from multiple view ***,a matrix of 50 anthropometries,10 gaits and 12 views is built,in total of 6000 images.A two-branch convolutional neural network(CNN)was trained on the synthetic *** model can simultaneously predict 16 joint landmarks and 14 joint angles of pedestrian for each image with high *** errors of the predictions are 0.54 pixels and−0.06°,*** specific pose can then be completely reconstructed from the ***,the current study has established a CG-based pipeline to generate photorealistic images with desired features for the training;it demonstrates the feasibility of leveraging CNN to estimate the pose of a walking pedestrian from synthesized *** proposed framework provides a starting point for vehicles to infer pedestrian poses and then adapt protection measures accordingly for imminent impact to minimize pedestrian injuries.

关键词： Pose estimation pedestrian safety Computer graphics Convolutional neural network

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluation of Transverse Markings as a Speed Transition Zone Countermeasures in Small, Rural Communities

引用

Journal of Transportation Technologies 2021年第1期11卷 61-77页

作者： Shauna Hallmark Neal Hawkins Skylar Knickerbocker Institute for Transportation at Iowa State University Ames USA

Small rural communities located along major state or county roadways typically find most of the traffic along their main thoroughfares is pass-through rather than local traffic. Unfortunately, drivers passing through these communities often enter at high rates of speeds, which are often significantly higher than the speed limit of the local segment. Speed management in rural areas requires different considerations compared to urban areas and, within the US, rural speed management is not as advanced with little experience or guidance for agencies to draw on. This paper summarizes the results of a study that evaluated, in part, several different types of transverse pavement markings within the speed transition zones in small rural communities. Three different countermeasures were evaluated: converging chevrons, transverse lane markings, and optical speed bars.

关键词： Community Entrance Converging Chevrons Optical Speed Bars pedestrian safety Speed Transitions Traffic Calming Traffic safety Speed Management

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Long-Term Effectiveness of Radar Speed Display Signs in a University Environment

引用

Journal of Transportation Technologies 2016年第3期6卷 99-105页

作者： Michael R. Williamson Ryan Fries Huaguo Zhou Department of Civil Engineering Indiana State University Terre Haute USA Department of Civil Engineering Southern Illinois University Edwardsville Edwardsville USA Department of Civil Engineering Auburn University Auburn USA

Vehicular speeds are of particular interest in areas with a high number of pedestrians due to the fact that 14-percent of all fatal crashes involve pedestrians. This study investigated the effect of a radar speed display sign placed for an extended period of time, at a location frequented by law enforcement on a road segment entering a university campus with a high number of pedestrians and vehicle speed violations. The statistical analysis included a comparison between AM peak, PM peak, and midday speeds collected one year apart. The data suggested that radar speed display signs can remain effective over a long period of time;causing drivers to decelerate when warned of a speeding violation. While other studies have examined long-term impacts of similar technologies, none have included a road entering a University campus. Thus, these findings support that other similar locations entering university campuses could see long-term benefits to stationary radar speed display signs.

关键词： pedestrian safety Radar Speed Display Signs Effectiveness Driver Behavior

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

自动驾驶汽车与行人交互中的沟通界面设计：基于行人过街决策模型的评估

引用

心理学 2022年第3期

作者：蒋倩妮庄想灵马国杰

自动驾驶汽车要进入人车混行的普通道路，需确保与过街行人之间的交互安全和效率。为解决这一问题，高等级自动驾驶汽车往往在车辆外部装置显示设备，即外部人机界面(eHMIs)以和行人沟通信息。在具体设计上，已有研究主要采用文字、图... 详细信息

自动驾驶汽车要进入人车混行的普通道路，需确保与过街行人之间的交互安全和效率。为解决这一问题，高等级自动驾驶汽车往往在车辆外部装置显示设备，即外部人机界面(eHMIs)以和行人沟通信息。在具体设计上，已有研究主要采用文字、图形、投影等视觉沟通形式，传达车辆状态(是否在自动驾驶模式)、意图和对行人的过街建议等沟通信息，并在真实路段实验、虚拟场景及实验室实验等情境中评估了界面的使用对行人过街意向、速度和准确性等指标的影响。然而，以行人为中心的外部界面设计需系统地支持行人过街决策前各阶段的信息加工需求。因此，我们结合行人过街决策过程和情境意识理论，提出行人与自动驾驶汽车交互中的动态过街决策模型，从行人认知加工视角评估各种界面的沟通效果。评估的结果启示，eHMIs应促进行人对车辆信息的感知、理解和预测。在感知阶段，应采用多种类型界面、多呈现载体相结合，增强信息的可识别性。在理解阶段，需结合文字说明、合理选择沟通视角、信号标准化和培训提高可理解性。在预测阶段，应结合车辆内隐运动信息，帮助行人快速准确获取车辆未来行动意图。更重要的是，未来研究应关注在多行人、多车辆混行情境下的信息沟通设计及其对行人的影响。理论方面，未来研究也需要关注外部界面如何通过自下而上的通路影响情境意识和心智模型的形成。

关键词：自动驾驶汽车外部人机交互界面 eHMIs 行人过街决策模型行人安全 autonomous vehicles external human machine interfaces eHMIs pedestrian road crossing decision-making model pedestrian safety

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：