ACCIDENT DATA ANALYSIS ANALYSIS IN SUPPORT OF COLLISION AVOIDANCE TECHNOLOGIES PDF Download
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Author: Kenneth L. Campbell, Arthur C. Wolfe, Daniel F. Blower, Patricia F. Waller, Dawn L. Massie, Stephen A. Ridella
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Author: Kenneth L. Campbell, Arthur C. Wolfe, Daniel F. Blower, Patricia F. Waller, Dawn L. Massie, Stephen A. Ridella
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Author: Kenneth L. Campbell
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 89
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Author: Robert W. G. Anderson
Publisher:
ISBN: 9781921645310
Category : Automobiles
Languages : en
Pages : 77
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The purpose of this report is to estimate the potential benefits of some of the safety technologies emerging for passenger vehicles, trucks and motorcycles. The focus is overwhelmingly on systems that actively prevent crashes, but a few passive safety features are also included. Intelligent speed adaptation is excluded from this report as it is being considered separately in an accompanying report. Direct short-range communication technologies were also outside the scope of the present report. The largest potential for reducing the number of serious and fatal crashes in coming years is likely to come from forward collision detection and avoidance technologies. These technologies currently include emergency brake assist, 'city-safe' low speed obstacle detection with automatic braking, and adaptive cruise control with automatic braking (operating sometimes only above, for example, 60 km/h). In the next five years, it is expected that the technologies will continue to develop such that there will be complete convergence in the operable range of systems, and a complete integration of the sensing and intervention technologies. It is from such future systems that the largest road safety gains are likely to be made. However, BCR values for forward collision detection and avoidance in passenger vehicles appear marginal given the present stage of development of the relevant technologies (where such systems might only be used to effect in higher speed limit areas); better estimates of future costs of the relevant technology will be critical to any justification for wide-scale installation. Nevertheless, BCR values support wide-scale installation of forward collision avoidance technologies in trucks. Mechanisms are suggested for accelerating the deployment of cost-effective safety technology into to the Australian passenger fleet.
Author: Marco daSilva
Publisher: Createspace Independent Publishing Platform
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 60
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This report presents the results of an analysis effort undertaken to address the following research question: What sensor(s) can be cost effectively added to vehicles on a wide scale to significantly improve our understanding and modeling of naturalistic near-crash/pre-crash driver performance? Current sensor and computer technology allows for the efficient collection and storage of driver and vehicle performance data on board vehicles. Crash data recorders or black boxes exist today on many vehicles though they are limited in number of recorded parameters and storage capacity. However, their capability is increasing. Recent field operational tests of advanced-technology crash avoidance systems and naturalistic driving data collection efforts have employed comprehensive data acquisition systems to characterize driver and vehicle performance as well as the driving environment. These projects gathered data on driver exposure to various environmental factors and on driver encounters with driving conflicts, near-crashes, and actual crashes. Unfortunately, the in-vehicle data acquisition packages in these projects cost over $10,000 per vehicle. It would be advantageous to build and install a very small, inexpensive package under $1,000 in a vehicle fleet of 5,000 or more. The presence of low-cost near-crash/crash event data recorders (EDRs) on thousands of vehicles would enable a more accurate assessment of safety benefits for intelligent vehicle crash avoidance technologies, and would greatly improve the quality of data in national crash databases such as the National Automotive Sampling System (NASS) Crashworthiness Data System (CDS) and General Estimates System (GES).
Author: Saima Manzoor Arain
Publisher: Lulu.com
ISBN: 1329260503
Category : Law
Languages : en
Pages : 290
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""The Motorway Police System in Pakistan is designed in a manner which enables law enforcement and does not encourage corruption. Enforcement action is transparent because of the tools made available and the manner in which SOPs have been prepared. It operates a traffic law which is as good as any in the world. The officers work in eight hour shifts and get weekly holidays by rotation. They live and work on the highway and are well compensated to be able to run two kitchens. In view of this, the Motorway Police has become a model for policing in Pakistan. Asad Jahangir Khan Ex-IG NH&MP."" Thus it is thought provoking: it is revolutionary, opening new vistas and bold horizons of intellectual endeavors. This book is scholarly written and exquisitely presented.
Author: Jie Ji
Publisher: Springer Nature
ISBN: 303101507X
Category : Technology & Engineering
Languages : en
Pages : 144
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In recent years, the control of Connected and Automated Vehicles (CAVs) has attracted strong attention for various automotive applications. One of the important features demanded of CAVs is collision avoidance, whether it is a stationary or a moving obstacle. Due to complex traffic conditions and various vehicle dynamics, the collision avoidance system should ensure that the vehicle can avoid collision with other vehicles or obstacles in longitudinal and lateral directions simultaneously. The longitudinal collision avoidance controller can avoid or mitigate vehicle collision accidents effectively via Forward Collision Warning (FCW), Brake Assist System (BAS), and Autonomous Emergency Braking (AEB), which has been commercially applied in many new vehicles launched by automobile enterprises. But in lateral motion direction, it is necessary to determine a flexible collision avoidance path in real time in case of detecting any obstacle. Then, a path-tracking algorithm is designed to assure that the vehicle will follow the predetermined path precisely, while guaranteeing certain comfort and vehicle stability over a wide range of velocities. In recent years, the rapid development of sensor, control, and communication technology has brought both possibilities and challenges to the improvement of vehicle collision avoidance capability, so collision avoidance system still needs to be further studied based on the emerging technologies. In this book, we provide a comprehensive overview of the current collision avoidance strategies for traditional vehicles and CAVs. First, the book introduces some emergency path planning methods that can be applied in global route design and local path generation situations which are the most common scenarios in driving. A comparison is made in the path-planning problem in both timing and performance between the conventional algorithms and emergency methods. In addition, this book introduces and designs an up-to-date path-planning method based on artificial potential field methods for collision avoidance, and verifies the effectiveness of this method in complex road environment. Next, in order to accurately track the predetermined path for collision avoidance, traditional control methods, humanlike control strategies, and intelligent approaches are discussed to solve the path-tracking problem and ensure the vehicle successfully avoids the collisions. In addition, this book designs and applies robust control to solve the path-tracking problem and verify its tracking effect in different scenarios. Finally, this book introduces the basic principles and test methods of AEB system for collision avoidance of a single vehicle. Meanwhile, by taking advantage of data sharing between vehicles based on V2X (vehicle-to-vehicle or vehicle-to-infrastructure) communication, pile-up accidents in longitudinal direction are effectively avoided through cooperative motion control of multiple vehicles.
Author: Matthew Brach
Publisher: SAE International
ISBN: 1468603450
Category : Technology & Engineering
Languages : en
Pages : 598
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Book Description
In this third edition of Vehicle Accident Analysis & Reconstruction Methods, Raymond M. Brach and R. Matthew Brach have expanded and updated their essential work for professionals in the field of accident reconstruction. Most accidents can be reconstructed effectively using of calculations and investigative and experimental data: the authors present the latest scientific, engineering, and mathematical reconstruction methods, providing a firm scientific foundation for practitioners. Accidents that cannot be reconstructed using the methods in this book are rare. In recent decades, the field of crash reconstruction has been transformed through the use of technology. The advent of event data records (EDRs) on vehicles signaled the era of modern crash reconstruction, which utilizes the same physical evidence that was previously available as well as electronic data that are measured/captured before, during, and after the collision. There is increased demand for more professional and accurate reconstruction as more crash data is available from vehicle sensors. The third edition of this essential work includes a new chapter on the use of EDRs as well as examples using EDR data in accident reconstruction. Early chapters feature foundational material that is necessary for the understanding of vehicle collisions and vehicle motion; later chapters present applications of the methods and include example reconstructions. As a result, Vehicle Accident Analysis & Reconstruction Methods remains the definitive resource in accident reconstruction.
Author: Becky P. Y. Loo
Publisher: CRC Press
ISBN: 1498766528
Category : Mathematics
Languages : en
Pages : 287
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Examine the Prevalence and Geography of Road CollisionsSpatial Analysis Methods of Road Traffic Collisions centers on the geographical nature of road crashes, and uses spatial methods to provide a greater understanding of the patterns and processes that cause them. Written by internationally known experts in the field of transport geography, the bo
Author: United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 192
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Author:
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 162
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