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Pages 6-11

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From page 6...
... 6 This chapter describes the background information related to this study, the scope of the study, the study approach, the terminology used in the synthesis, and the organization of the synthesis. Background The traveling public judge the condition of a road by its ride quality.
From page 7...
... Introduction 7 principal arterials; and HPMS sections that are located on rural minor arterials (FHWA 2016)
From page 8...
... 8 Inertial Profiler Certification for Evaluation of International Roughness Index Scope of the Study The primary objective of this study was to document the state of practice followed by state DOTs in the U.S.
From page 9...
... Introduction 9 • Surface material types, ranges of roughness, and surface textures of test sections used for certification; • Procedure used for certification of equipment; • Procedure used for certification of operators; • Documents provided after certification of equipment and operators; • Certification reciprocity among states for equipment and operators; • Cost of certification for equipment and operators; • Agency managing the certification facility for profiler certification; • Duration of validity of the certification for both equipment and operators; • Pre-operational checks performed on the profiler before collecting data for construction acceptance; • Quality assurance (QA) procedures used on contractor-collected data for construction acceptance and procedures for handling disputes with contractors; • Operation procedures during network-level data collection; • Processes used to monitor the data collected by inertial profilers at network-level subsequent to certification; and • Whether the state has a data quality management plan, and -- if a plan is available -- the items that are covered in the plan.
From page 10...
... 10 Inertial Profiler Certification for Evaluation of International Roughness Index • Certified Profiler: A profiler that has demonstrated that it can meet a repeatability and an accuracy criterion based on the IRI within a specified threshold. The accuracy criterion is based on agreement with data collected by a reference device.
From page 11...
... Introduction 11 data. Chapter 7 presents the conclusions from the study, gaps in knowledge, and suggestions for future research.

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