User:Hoskir/Revision Request 4238
106.3.2.59.2 Inertial Profiler Certification Procedures
Each IP used for construction acceptance testing on a MoDOT project shall be annually certified (verified) at a MoDOT approved certified test site in accordance with AASHTO R 56. The test site will have a known IRI in two wheel paths, measured with a reference profiler.
The MoDOT approved certification site shall issue a passing certification letter for the profiler that list the following:
- Name, Address, and Company of Profiler Operator
- Profiler ID, Manufacturer, and Model Number
- Profiler Type
- Lazer Serial Numbers
- Host Vehicle Description and VIN number
The certification letter shall list the final test results of the inertial profiler for repeatability and accuracy in accordance with AASHTO R 56 as follows:
- Minimum average cross-correlation repeatability shall be 92%.
- Minimum average cross-correlation accuracy shall be 90%.
The certification letter shall be sent to MoDOT’s Technician Certification Program Coordinator at the following email address: TechCert@modot.mo.gov.
MoDOT’s Technical Certification Program Coordinator will store a copy of the certification letter on MoDOT’s SharePoint site. The Profiler Operator shall have a copy of the certification letter available upon request.
Inertial profilers that do not pass the certification test shall be corrected offsite by their respective owners and recertified. Inertial profilers that are not certified on an annual basis shall not be used for QC or QA testing.