National Academies Press: OpenBook
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2013. Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety. Washington, DC: The National Academies Press. doi: 10.17226/22621.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2013. Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety. Washington, DC: The National Academies Press. doi: 10.17226/22621.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2013. Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety. Washington, DC: The National Academies Press. doi: 10.17226/22621.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2013. Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety. Washington, DC: The National Academies Press. doi: 10.17226/22621.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2013. Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety. Washington, DC: The National Academies Press. doi: 10.17226/22621.
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SHRP 2 Safety Project S08 Initial Analyses from the SHRP 2 Naturalistic Driving Study Addressing Driver Performance and Behavior in Traffic Safety Shauna Hallmark Center for Transportation Research and Education at Iowa State University Dan McGehee Public Policy Center at the University of Iowa Karin M. Bauer and Jessica M. Hutton MRIGlobal Gary A. Davis, John Hourdos, and Indrajit Chatterjee University of Minnesota T. Victor, J. Bärgman, M. Dozza, H. Rootzén, J.D. Lee, C. Ahlström, O. Bagdadi, J. Engström, D. Zholud, and M. Ljung-Aust SAFER Vehicle and Traffic Safety Centre at Chalmers Volume Editor James Hedlund SHRP 2 Safety Coordinator TRANSPORTATION RESEARCH BOARD Washington, D.C. 2013 www.TRB.org

© 2013 National Academy of Sciences. All rights reserved. ACKNOWLEDGMENT This work was sponsored by the Federal Highway Administration in cooperation with the American Association of State Highway and Transportation Officials. It was conducted in the second Strategic Highway Research Program, which is administered by the Transportation Research Board of the National Academies. COPYRIGHT INFORMATION Authors herein are responsible for the authenticity of their materials and for obtaining written permissions from publishers or persons who own the copyright to any previously published or copyrighted material used herein. The second Strategic Highway Research Program grants permission to reproduce material in this publication for classroom and not-for-profit purposes. Permission is given with the understanding that none of the material will be used to imply TRB, AASHTO, or FHWA endorsement of a particular product, method, or practice. It is expected that those reproducing material in this document for educational and not-for-profit purposes will give appropriate acknowledgment of the source of any reprinted or reproduced material. For other uses of the material, request permission from SHRP 2. NOTICE The project that is the subject of this document was a part of the second Strategic Highway Research Program, conducted by the Transportation Research Board with the approval of the Governing Board of the National Research Council. The Transportation Research Board of the National Academies, the National Research Council, and the sponsors of the second Strategic Highway Research Program do not endorse products or manufacturers. Trade or manufacturers’ names appear herein solely because they are considered essential to the object of the report. DISCLAIMER The opinions and conclusions expressed or implied in this document are those of the researchers who performed the research. They are not necessarily those of the second Strategic Highway Research Program, the Transportation Research Board, the National Research Council, or the program sponsors. The information contained in this document was taken directly from the submission of the authors. This material has not been edited by the Transportation Research Board. SPECIAL NOTE: This document IS NOT an official publication of the second Strategic Highway Research Program, the Transportation Research Board, the National Research Council, or the National Academies.

The National Academy of Sciences is a private, nonprofit, self-perpetuating society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare. On the authority of the charter granted to it by Congress in 1863, the Academy has a mandate that requires it to advise the federal government on scientific and technical matters. Dr. Ralph J. Cicerone is president of the National Academy of Sciences. The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. It is autonomous in its administration and in the selection of its members, sharing with the National Academy of Sciences the responsibility for advising the federal government. The National Academy of Engineering also sponsors engineering programs aimed at meeting national needs, encourages education and research, and recognizes the superior achievements of engineers. Dr. Charles M. Vest is president of the National Academy of Engineering. The Institute of Medicine was established in 1970 by the National Academy of Sciences to secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public. The Institute acts under the responsibility given to the National Academy of Sciences by its congressional charter to be an adviser to the federal government and, upon its own initiative, to identify issues of medical care, research, and education. Dr. Harvey V. Fineberg is president of the Institute of Medicine. The National Research Council was organized by the National Academy of Sciences in 1916 to associate the broad community of science and technology with the Academy’s purposes of furthering knowledge and advising the federal government. Functioning in accordance with general policies determined by the Academy, the Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in providing services to the government, the public, and the scientific and engineering communities. The Council is administered jointly by both Academies and the Institute of Medicine. Dr. Ralph J. Cicerone and Dr. Charles M. Vest are chair and vice chair, respectively, of the National Research Council. The Transportation Research Board is one of six major divisions of the National Research Council. The mission of the Transportation Research Board is to provide leadership in transportation innovation and progress through research and information exchange, conducted within a setting that is objective, interdisciplinary, and multimodal. The Board’s varied activities annually engage about 7,000 engineers, scientists, and other transportation researchers and practitioners from the public and private sectors and academia, all of whom contribute their expertise in the public interest. The program is supported by state transportation departments, federal agencies including the component administrations of the U.S. Department of Transportation, and other organizations and individuals interested in the development of transportation. www.TRB.org www.national-academies.org

Contents 1 CHAPTER 1 Introduction 1 The First Four SHRP 2 NDS Analyses 3 CHAPTER 2 Assessing the Relationship between Driver, Roadway, Environmental, and Vehicle Factors and Lane Departures on Rural Two- Lane Curves: An Investigation Using the SHRP 2 Naturalistic Driving Study 3 Background 4 Project Objectives 4 Research Questions Addressed 4 Data Collection and Reduction 5 Crash Surrogates 5 Analysis Plan 7 Additional Considerations for Phase 2 7 Lessons Learned 7 Translating Research to Practice 9 CHAPTER 3 Evaluation of Offset Left-Turn Lanes: An Investigation Using the SHRP 2 Naturalistic Driving Study 9 Introduction 10 Working with the NDS Data 12 Preliminary Analysis 13 Plans for Phase 2 15 CHAPTER 4 Car Following, Driver Distraction, and Capacity-Reducing Crashes on Congested Freeways: An Investigation Using the SHRP 2 Naturalistic Driving Study 15 Introduction 15 Proposed Analysis 16 Phase 1 Objectives 16 Phase 1 Accomplishments 19 Conclusion 20 CHAPTER 5 Safer Glances, Driver Inattention, and Crash Risk: An Investigation Using the SHRP 2 Naturalistic Driving Study 20 Introduction 20 State of the Art on Dangerous Glance Behavior

21 Naturalistic Driving Data and Validated Inattention Crash Risk 21 Analysis Plan 23 Data 23 Results 25 Expected Results and Implications for Countermeasures 27 References

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Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety Get This Book
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TRB’s second Strategic Highway Research Program (SHRP 2) SHRP 2 Safety Project S08 has released a report titled Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety that summarizes phase 1 work produced by four analysis contracts that were awarded to study specific research questions using early SHRP 2 naturalistic driving study and roadway information database data.

The topics of the four initial studies and links to the project descriptions for each of these studies are as follows:

lane departures on rural two-lane curves;

offset left-turn lanes;

rear-end crashes on congested freeways; and

driver inattention and crash risk.

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