Maintenance Quality Assurance Field Inspection Practices (2015) / Chapter Skim
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CONTENTS 1 SUMMARY 5 CHAPTER ONE INTRODUCTION Background, 5 Synthesis Objectives, 5 Synthesis Scope and Approach, 5 Terminology, 6 Report Organization, 7 8 CHAPTER TWO LITERATURE REVIEW Overview, 8 Maintenance Quality Assurance Condition Assessment Approaches, 9 Data Collection Activities to Support Maintenance Quality Assurance Programs, 10 Maintenance Levels of Services, 12 Using Maintenance Quality Assurance Results, 12 15 CHAPTER THREE STATE OF THE PRACTICE Overview, 15 Survey Content, 15 Maintenance Quality Assurance Program Status, 15 Data Collection and Quality Assurance Procedures, 17 Use of Maintenance Quality Assurance Data, 27 Innovations, Improvements, and Enhancements, 30 31 CHAPTER FOUR CASE EXAMPLES Approach, 31 Rationale and Motivation for Getting Started, 31 Methods to Ensure Quality and Consistency, 33 Impact of Selected Approach on Capabilities, 35 38 CHAPTER FIVE CONCLUSIONS Overall Findings, 38 Further Research, 40 42 REFERENCES 43 ABBREVIATIONS, ACRONYMS, INITIALISMS, AND SYMBOLS 44 APPENDIX A: SURVEY QUESTIONNAIRE (WEB VERSION ONLY) 102 APPENDIX B: SURVEY RESPONSES APPENDICES A and B beginning on page 44 are web-only and can be found at www.trb.org, search on NCHRP SYNTHESIS 470.
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SUMMARY MAINTENANCE QUALITY ASSURANCE FIELD INSPECTION PRACTICES In the mid-1990s, Maintenance Quality Assurance (MQA) programs emerged as a method to estimate maintenance funding needed to achieve a given level of service.
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2 • The impact their methodology has had on how the MQA results can be used to support agency decisions. The study found that most state DOTs have an MQA program in place or intend to implement a program within the next 5 years.
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3 assurance checks, and data reasonableness checks to support their efforts. To help reduce bias, most states use a team of two raters to conduct surveys.
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4 • Establishing LOS-cost relationships that allow states to better communicate maintenance funding needed to achieve various levels of service with stakeholders. • Improving the integration of capital and maintenance expenditures for whole-life costing, so the future impacts on maintenance from capital expansion projects can be better understood.
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5 state MQA program, builds on previous efforts to document MQA practices and brings the documentation up to date. SYNTHESIS OBJECTIVES The objective of this synthesis is to document current MQA field inspection practices administered within state DOT maintenance offices.
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6 • Asset -- A physical item of roadway infrastructure that has value. Assets are sometimes referred to as roadway "furniture" or "features." An asset may be a single item, such as a sign, or a linear item, such as a road or guardrail section.
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7 • Performance target -- A targeted level of an activity or performance expressed as a tangible, measurable goal against which achievement can be compared. A performance target is usually a numerical rating, such as "pavement drop-off less than x inches," but it could also be an overall rating, such as a targeted LOS equal to "A" in an A to F rating scale.
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