National Academies Press: OpenBook
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2021. Night and Weekend Movement of Oversize/Overweight Loads. Washington, DC: The National Academies Press. doi: 10.17226/26311.
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Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Night and Weekend Movement of Oversize/Overweight Loads A SYNTHESIS OF HIGHWAY PRACTICE Jason Bittner Hannah Silber Applied Research Associates, Inc. Madison, WI 2021 Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration Subscriber Categories Freight Transportation • Policy N A T I O N A L C O O P E R A T I V E H I G H W A Y R E S E A R C H P R O G R A M NCHRP SYNTHESIS 572

Published reports of the NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM are available from Transportation Research Board Business Office 500 Fifth Street, NW Washington, DC 20001 and can be ordered through the Internet by going to https://www.mytrb.org/MyTRB/Store/default.aspx Printed in the United States of America NCHRP SYNTHESIS 572 Project 20-05, Topic 51-12 ISSN 0547-5570 ISBN 978-0-309-67420-1 Library of Congress Control Number 2021943134 © 2021 National Academy of Sciences. All rights reserved. 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. Cooperative Research Programs (CRP) 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, FAA, FHWA, FTA, GHSA, NHTSA, or TDC endorsement of a particular product, method, or practice. It is expected that those reproducing the material in this document for educational and not-for-profit uses will give appropriate acknowledgment of the source of any reprinted or reproduced material. For other uses of the material, request permission from CRP. NOTICE The report was reviewed by the technical panel and accepted for publication according to procedures established and overseen by the Transportation Research Board and approved by the National Academies of Sciences, Engineering, and Medicine. The opinions and conclusions expressed or implied in this report are those of the researchers who performed the research and are not necessarily those of the Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; the FHWA; or the program sponsors. The Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; and the sponsors of the National Cooperative Highway Research Program do not endorse products or manufacturers. Trade or manufacturers’ names or logos appear herein solely because they are considered essential to the object of the report. NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM Systematic, well-designed, and implementable research is the most effective way to solve many problems facing state departments of transportation (DOTs) administrators and engineers. Often, highway problems are of local or regional interest and can best be studied by state DOTs individually or in cooperation with their state universities and others. However, the accelerating growth of highway transporta- tion results in increasingly complex problems of wide interest to high- way authorities. These problems are best studied through a coordinated program of cooperative research. Recognizing this need, the leadership of the American Association of State Highway and Transportation Officials (AASHTO) in 1962 ini- tiated an objective national highway research program using modern scientific techniques—the National Cooperative Highway Research Program (NCHRP). NCHRP is supported on a continuing basis by funds from participating member states of AASHTO and receives the full cooperation and support of the Federal Highway Administration (FHWA), United States Department of Transportation, under Agree- ment No. 693JJ31950003. The Transportation Research Board (TRB) of the National Academies of Sciences, Engineering, and Medicine was requested by AASHTO to administer the research program because of TRB’s recognized objectivity and understanding of modern research practices. TRB is uniquely suited for this purpose for many reasons: TRB maintains an extensive com- mittee structure from which authorities on any highway transportation subject may be drawn; TRB possesses avenues of communications and cooperation with federal, state, and local governmental agencies, univer- sities, and industry; TRB’s relationship to the National Academies is an insurance of objectivity; and TRB maintains a full-time staff of special- ists in highway transportation matters to bring the findings of research directly to those in a position to use them. The program is developed on the basis of research needs iden- tified by chief administrators and other staff of the highway and transportation departments, by committees of AASHTO, and by the FHWA. Topics of the highest merit are selected by the AASHTO Special Committee on Research and Innovation (R&I), and each year R&I’s recommendations are proposed to the AASHTO Board of Direc- tors and the National Academies. Research projects to address these topics are defined by NCHRP, and qualified research agencies are selected from submitted proposals. Administration and surveillance of research contracts are the responsibilities of the National Academies and TRB. The needs for highway research are many, and NCHRP can make significant contributions to solving highway transportation problems of mutual concern to many responsible groups. The program, however, is intended to complement, rather than to substitute for or duplicate, other highway research programs.

The National Academy of Sciences was established in 1863 by an Act of Congress, signed by President Lincoln, as a private, non- governmental institution to advise the nation on issues related to science and technology. Members are elected by their peers for outstanding contributions to research. Dr. Marcia McNutt is president. The National Academy of Engineering was established in 1964 under the charter of the National Academy of Sciences to bring the practices of engineering to advising the nation. Members are elected by their peers for extraordinary contributions to engineering. Dr. John L. Anderson is president. The National Academy of Medicine (formerly the Institute of Medicine) was established in 1970 under the charter of the National Academy of Sciences to advise the nation on medical and health issues. Members are elected by their peers for distinguished contributions to medicine and health. Dr. Victor J. Dzau is president. The three Academies work together as the National Academies of Sciences, Engineering, and Medicine to provide independent, objective analysis and advice to the nation and conduct other activities to solve complex problems and inform public policy decisions. The National Academies also encourage education and research, recognize outstanding contributions to knowledge, and increase public understanding in matters of science, engineering, and medicine. Learn more about the National Academies of Sciences, Engineering, and Medicine at www.nationalacademies.org. The Transportation Research Board is one of seven major programs of the National Academies of Sciences, Engineering, and Medicine. The mission of the Transportation Research Board is to provide leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation. The Board’s varied activities annually engage about 8,000 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. Learn more about the Transportation Research Board at www.TRB.org.

C O O P E R A T I V E R E S E A R C H P R O G R A M S CRP STAFF FOR NCHRP SYNTHESIS 572 Christopher J. Hedges, Director, Cooperative Research Programs Lori L. Sundstrom, Deputy Director, Cooperative Research Programs Christopher Dunne, Senior Program Officer Stephanie L. Campbell, Senior Program Assistant Natalie Barnes, Director of Publications NCHRP PROJECT 20-05 PANEL Joyce N. Taylor, Maine Department of Transportation, Augusta, ME (Chair) Socorro “Coco” A. Briseno, California Department of Transportation (Ret.), Sacramento, CA Anita K. Bush, Nevada Department of Transportation, Carson City, NV Joseph D. Crabtree, Kentucky Transportation Center, Lexington, KY Mostafa Jamshidi, Nebraska Department of Transportation, Lincoln, NE Cynthia L. Jones, Ohio Department of Transportation, Columbus, OH Jessie X. Jones, Arkansas DOT, Little Rock, AR Brenda Moore, North Carolina Department of Transportation, Raleigh, NC Ben T. Orsbon, South Dakota Department of Transportation, Pierre, SD Randall R. Park, Avenue Consultants, Taylorsville, UT Brian Worrel, Iowa Department of Transportation, Ames, IA Jack D. Jernigan, FHWA Liaison Jim T. McDonnell, AASHTO Liaison Stephen F. Maher, TRB Liaison TOPIC 51-12 PANEL Tammy L. Anderson, Louisiana Department of Transportation and Development, Baton Rouge, LA John Broers, South Dakota Highway Patrol, Pierre, SD Joseph D. Crabtree, Kentucky Transportation Center, Lexington, KY Rob Holschbach, Minnesota Department of Transportation, St. Paul, MN Stephen Landry, Maine Department of Transportation, Augusta, ME Caroline A. Mays, Texas Department of Transportation, Austin, TX Marygrace M. Parker, The Eastern Transportation Coalition, Greenwich, NY Vicente Mantero, FHWA Liaison Patrick B. Zelinski, AASHTO Liaison Scott Babcock, TRB Liaison

ABOUT THE NCHRP SYNTHESIS PROGRAM Highway administrators, engineers, and researchers often face problems for which information already exists, either in documented form or as undocumented experience and practice. This informa- tion may be fragmented, scattered, and unevaluated. As a consequence, full knowledge of what has been learned about a problem may not be brought to bear on its solution. Costly research findings may go unused, valuable experience may be overlooked, and due consideration may not be given to recom- mended practices for solving or alleviating the problem. There is information on nearly every subject of concern to highway administrators and engineers. Much of it derives from research or from the work of practitioners faced with problems in their day- to-day work. To provide a systematic means for assembling and evalu ating such useful information and to make it available to the entire highway community, the American Association of State Highway and Transportation Officials—through the mechanism of the National Cooperative Highway Research Program—authorized the Transportation Research Board to undertake a continuing study. This study, NCHRP Project 20-05, “Synthesis of Information Related to Highway Practices,” searches out and synthesizes useful knowledge from all available sources and prepares concise, documented reports on specific topics. Reports from this endeavor constitute an NCHRP report series, Synthesis of Highway Practice. This synthesis series reports on current knowledge and practice, in a compact format, without the detailed directions usually found in handbooks or design manuals. Each report in the series provides a compendium of the best knowledge available on those measures found to be the most successful in resolving specific problems. FOREWORD By Christopher Dunne Staff Officer Transportation Research Board NCHRP Synthesis 572: Night and Weekend Movement of Oversize/Overweight Loads presents informa- tion regarding the current state of the practice for regulating night and weekend movement of oversize/ overweight (OS/OW) loads among state departments of transportation. The synthesis documents state laws and regulations governing the night and weekend movements of OS/OW loads, permit- ting practices used by state DOTs or authorized OS/OW permitting agencies, and characteristics of policies and practices for night and weekend movements of OS/OW loads. This synthesis report also summarizes issues and challenges that may arise from inconsistencies in policies and practices from state to state. Information in this study was acquired through a review of the literature, a survey of representa- tives of state departments of transportation, and follow-up interviews that were used to develop four case examples of policies and practices around night and weekend movements of OS/OW loads. Jason Bittner, of Applied Research Associates, Inc., collected and synthesized the information and wrote the report. Hannah Silber, also of Applied Research Associates, Inc., was a substantial contributor to the report and assisted in reviewing the document and in the literature review. The members of the topic panel are acknowledged on page iv. This synthesis report is an immediately useful document that records the practices that were acceptable within the limitations of the knowledge available at the time of its preparation. As progress in research and practice continues, new knowledge will be added to that now at hand.

Note: Photographs, figures, and tables in this report may have been converted from color to grayscale for printing. The electronic version of the report (posted on the web at www.trb.org) retains the color versions. 1 Summary 2 Chapter 1 Introduction 2 Problem Statement 3 Objective of the Study 4 Chapter 2 Literature Review 4 Preferred Permitting Practices 7 Technology 8 General Issues for Night and Weekend Moves 10 Conclusions and Closing Summary 11 Chapter 3 Survey Results 11 OS/OW Loads State Permitting Practices 18 Special Commodity Considerations 22 Additional Reviews 22 OS/OW Restrictions 27 Thresholds for Enhanced Reviews 28 State Studies and Observations 29 Closing Observations 31 Chapter 4 Case Example Follow-up Interviews 31 Wisconsin Bureau of Highway Maintenance 32 Michigan Utility Coordination and Permits Services 33 Utah Motor Carrier Division Super Load/Customer Service 33 West Virginia Division of Highway Operations 34 Summary and Observations 35 Chapter 5 Conclusions 37 References 38 Appendix Survey Questions C O N T E N T S

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Permitted movements of oversize and overweight (OS/OW) loads traditionally occur during the daytime on weekdays to allow for adequate staffing support and safety-focused practices. Due to increases in traffic congestion, safety concerns over fleet mixes, and other factors, many states began allowing or requesting those movements to occur during off-peak traffic hours, including nights and weekends.

The TRB National Cooperative Highway Research Program's NCHRP Synthesis 572: Night and Weekend Movement of Oversize/Overweight Loads presents the state of the practice for regulating night and weekend movement of OS/OW loads among state departments of transportation.

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