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Arden Hills, MN <br />Pavement Condition Assessment and Analysis <br />Quality Control and Quality Assurance <br />IMS has developed a unique approach to pavement condition assessments by coupling manual review of <br />distress data with automated algorithms. This more rigorous QC/QA process ensures that the <br />automated distress detection and classification algorithms that we use work correctly. Our Pavement <br />Engineering team fully understands the capabilities and limitations of the state-of-the-art LCMS-2 <br />technologies and sophisticated algorithms that we employ, and our QC/QA steps are extremely <br />important in ensuring the success of the project. <br />The IMS QC/QA process is comprehensive and makes use of field observations, automated data <br />processing tools, manual data review by our QC team, independent review by our QA manager, and <br />lastly, final review by the City. There are QC/QA checks at each stage of the project to ensure data <br />quality before the data is moved into the next steps. <br />Machine learning and <br />artificial intelligence have <br />sped up distress <br />identification significantly. <br />And when supplemented <br />with trained pavement <br />raters, field staff, and expert <br />engineers, they establish high <br />data confidence and <br />integrity. The final quality <br />assurance performed by City <br />personnel will ensure that <br />the City has confidence in <br />and takes ownership of the <br />condition data. <br />New QA Tool! IMS QC/QA interface for manually reviewing automated distress <br />detection and classification results. <br />The image above depicts the new QA tool developed by the IMS engineering team to assist our quality <br />control team review the LCMS-2 automated data and field imagery to ensure a representative product. <br />The flow chart below illustrates the 4-step process that has been improved and recently streamlined. <br />Stele I Stop 2 <br />R"ww by IMS QC Lwd <br />Pavement distresses. ExesWe doll esi <br />:_uanti lies anrJAv wseridm rare <br />vistresses <br />Ravernem seetiorm: Surface cypea; <br />widthi IpnKth <br />Chlpsealed roads. sealed Cracks, and <br />4Xh4M <br />PCl values: Value eWal to Mare; <br />{hanp in PQ more 114n — 10ppirrt <br />V ea <br />Step 3 <br />Ravlaw Gy IMS Ptu}act <br />Engl n"r <br />RanUam 10% <br />Accept Of wKlrrrr tW% <br />hiemof delfvera6re: <br />nocwhenmow of <br />ony clnuswaf dsurafor <br />drscu-man MThtJhe Ckent <br />ste4 <br />_� p =l <br />IMS QA IManagar QA by C09M Staff <br />R"Ivp w Perti[ipatian <br />rtendolrl 5% Q4gryrtWp <br />A"rpt if within *20% $aflKft sae <br />04A&dkft'joyi WON-ed ArfQF40Pkwarvngand <br />inOrlyv#Xarrespec#sof Dowpar, <br />thepr letr.lndep w2flr <br />prr##rMpf r#view. <br />IMS' rigorous, multi -step approach to QC/QA of pavement condition data to ensure ASTM D6433 compliant data. <br />IMS Infrastructure Management Services, LP 6 <br />