Event Title
Analysis and Optimisation of TII’s PAMS Reset Values and Deterioration Models for Irish Pavement Conditions
Location
Cork Institute of Technology, Cork, Ireland
Event Website
https://event.ceri2020.exordo.com/
Start Date
27-8-2020 10:30 AM
End Date
27-8-2020 11:45 AM
Description
Ireland has a national road network of approximately 5300km that is managed by Transport Infrastructure Ireland (TII). TII create yearly pavement maintenance and renewal programs from the operation of a Pavement Asset Management System (PAMS). Accurate pavement deterioration models and reset values are an essential part of PAMS and are required for life cycle cost analysis (LCCA). Pavement maintenance and renewal schemes are prioritised based on the LCCA's largest benefit to cost ratio, and therefore optimise the annual pavement maintenance and renewal budget. Currently, TII implement pavement deterioration models and reset values from Austria's and Belgium's PAMS, and are not based on the measured Irish pavement conditions. This research project analyses and compares the historic international roughness index (IRI), rut depth and longitudinal profile variance 3m (LPV3) Irish pavement condition results for certain sites, measured from 2010 to 2019, to the current PAMS's pavement reset values and deterioration models. Several long-term pavement performance (LTPP) monitoring sites were selected for the analysis of Irish pavement condition parameters. The LTPP monitoring sites consist of newly constructed and recently maintained pavement sites throughout the Irish national road network for each subnet category. This research concludes that there is a general disconnect between the measured pavement condition results and the reset value and deterioration models used in TII's PAMS. Generally, the measured reset values of the LTPP monitoring sites were less than the TII's PAMS reset values, indicating that TII's PAMS may underestimate the treatment benefit for the LCCA treatment prioritisation process. Generally, the measured pavement deterioration trends were lower than the predicted pavement condition values of TII's PAMS. The pavement deterioration monitoring should be continued to determine when each LTPP monitoring site requires additional pavement treatments and as a result, determine the full deterioration model for each of the LTPP monitoring sites into the future.
Recommended Citation
Quinn, James; McGowan, Raymond; and O'Flaherty, Tomas, "Analysis and Optimisation of TII’s PAMS Reset Values and Deterioration Models for Irish Pavement Conditions" (2020). Civil Engineering Research in Ireland 2020. 3.
https://sword.cit.ie/ceri/2020/17/3
Included in
Civil Engineering Commons, Construction Engineering and Management Commons, Environmental Engineering Commons, Geotechnical Engineering Commons, Hydraulic Engineering Commons, Structural Engineering Commons, Transportation Engineering Commons
Analysis and Optimisation of TII’s PAMS Reset Values and Deterioration Models for Irish Pavement Conditions
Cork Institute of Technology, Cork, Ireland
Ireland has a national road network of approximately 5300km that is managed by Transport Infrastructure Ireland (TII). TII create yearly pavement maintenance and renewal programs from the operation of a Pavement Asset Management System (PAMS). Accurate pavement deterioration models and reset values are an essential part of PAMS and are required for life cycle cost analysis (LCCA). Pavement maintenance and renewal schemes are prioritised based on the LCCA's largest benefit to cost ratio, and therefore optimise the annual pavement maintenance and renewal budget. Currently, TII implement pavement deterioration models and reset values from Austria's and Belgium's PAMS, and are not based on the measured Irish pavement conditions. This research project analyses and compares the historic international roughness index (IRI), rut depth and longitudinal profile variance 3m (LPV3) Irish pavement condition results for certain sites, measured from 2010 to 2019, to the current PAMS's pavement reset values and deterioration models. Several long-term pavement performance (LTPP) monitoring sites were selected for the analysis of Irish pavement condition parameters. The LTPP monitoring sites consist of newly constructed and recently maintained pavement sites throughout the Irish national road network for each subnet category. This research concludes that there is a general disconnect between the measured pavement condition results and the reset value and deterioration models used in TII's PAMS. Generally, the measured reset values of the LTPP monitoring sites were less than the TII's PAMS reset values, indicating that TII's PAMS may underestimate the treatment benefit for the LCCA treatment prioritisation process. Generally, the measured pavement deterioration trends were lower than the predicted pavement condition values of TII's PAMS. The pavement deterioration monitoring should be continued to determine when each LTPP monitoring site requires additional pavement treatments and as a result, determine the full deterioration model for each of the LTPP monitoring sites into the future.
https://sword.cit.ie/ceri/2020/17/3
