Inertial Profiler Certification for Evaluation of International Roughness Index (2018) / Chapter Skim
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Pages 86-91
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From page 86... ...
86 Many state DOTs use IRI as the smoothness index for construction acceptance. The state DOTs also use IRI to keep track of the roughness of the state pavement network and for HPMS submittal.
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From page 87... ...
Conclusions and Further Research 87 performed by the state DOT in 16 states, by the contractor in 18 states, and by the state DOT as well as the contractor in two states. In the states that allow contractors to collect smoothness data for construction acceptance, the state DOT performs QA testing on the data collected by the contractor.
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From page 88... ...
88 Inertial Profiler Certification for Evaluation of International Roughness Index the state DOT profiler operator to be certified. The operator certification procedures in each state require the operator to perform a combination of the following items to be certified: pass a practical exam, pass a written exam administered in the classroom, attend a class describing profiler operations, take an online class, and pass an online exam.
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From page 89... ...
Conclusions and Further Research 89 by comparing the collected data with previously collected data. In some states where vendors' equipment is not certified, the state DOT has established verification sections where the data collected by the vendors' equipment are compared with data collected by the state DOT–owned equipment to determine whether the data compare within a specified threshold before the vendor is allowed to collect data.
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From page 90... ...
90 Inertial Profiler Certification for Evaluation of International Roughness Index 44 states that responded to the survey, but the state DOT–owned equipment is certified in only 12 states. The survey also indicated that a vendor collects network-level data in 25 of the 44 states that responded to the survey, but the vendor-owned equipment is certified in-state only in seven states, with three states responding that the vendor provides documentation that the profiler has been certified at an out-of-state location.
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From page 91... ...
Conclusions and Further Research 91 The availability of personnel and cost will impact the type of certification program that a state can set up. For example, limitation on personnel and budget may only allow a state DOT to set up a single site for certifying profilers.
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