TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 359: Bridge Rating Practices and Policies for Overweight Vehicles explores overweight vehicle permit processes. The report includes information on state and provincial bridge rating systems, bridge evaluation practices, and permit policies as they relate to overweight and oversize vehicles. The report is designed to help in the understanding of the reasons for nonuniform permitting practices. The report reviews specifications, software types, treatment of nonstandard configurations, and allowance for in-place dead loads; processes of permit review; and personnel assigned to permit review.
National Academies of Sciences, Engineering, and Medicine. 2006. Bridge Rating Practices and Policies for Overweight Vehicles. Washington, DC: The National Academies Press. https://doi.org/10.17226/13954.
|Chapter One - Introduction||2-3|
|Chapter Two - Literature Review||4-11|
|Chapter Three - Nonuniformity in Permitting Systems||12-14|
|Chapter Four - Bridge Evaluation for Oversize/Overweight Permitting||15-19|
|Chapter Five - Efforts Possibly Contributing to Improved Uniformity of Bridge Rating for Oversize/Overweight Vehicles||20-25|
|Chapter Six - Conclusions and Future Research Needs||26-27|
|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|
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