• Front Matter R1-R9

• Summary 1-1

• Approach 2-2

• Organization 3-3

• Chapter Two - Literature Review 4-5

• Live Load Factor 6-6

• Impact Factor 7-11

• Variation in Permit Types and Policies 12-13

• Nonuniformity from Perspective of Industry 14-14

• Variation in Evaluation and Rating Process 15-16

• Variation in Evaluation and Rating Procedure 17-18

• Summary 19-19

• Atlantic Canada 20-21

• Illinois Department of Transportation Load and Resistance Factor Rating Survey 22-22

• Uniform Overdimensional and Overweight Permit Policy Proposed by Specialized Carriers & Rigging Association 23-23

• Southeastern Association of State Highway and Transportation Officials Multistate Permit Program 24-24

• Other 25-25

• Chapter Six - Conclusions and Future Research Needs 26-27

• References 28-28

• Appendix A - Questionnaire 29-34

• Appendix B - Abbreviations and Acronyms 35-35

• Appendix C - Responses to Questionnaire 36-107

• Abbreviations used without definitions in TRB publications 108-108

Fu, Gongkang, Fu, Clementine, Transportation Research Board " Front Matter ." NCHRP Synthesis 359: Bridge Rating Practices and Policies for Overweight Vehicles . Washington, DC: The National Academies Press, 2006 .

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