A Model for Performance Assessment of Road Maintenance Programs

Maintenance planning assessment is based on tools that need many data and that require an intensive work of calibration, or generalized models that do not behave well when adapted to local conditions. This research proposes a tool for assessing maintenance programs for highways. The tool calibrates models at a project level by using inventory, traffic and pavement condition of Chilean highways. Detailed network segmentation, based on traffic behavior, pavement structure and weather conditions was performed. A traffic model that considers heavy traffic and highway capacity was calibrated. Considering subgrade data and pavement condition, a deflection model was calibrated to identify strong and weak pavement structures. Afterward, a roughness [international roughness index (IRI)] progression model was developed. The model relates IRI with pavement age, cumulated equivalent axis and structural number for asphalt pavements. For concrete pavements, cracking and faulting were included in the models. A model that describes the effectiveness of maintenance activities was calibrated. This model considers 6 maintenance activities and their effect on IRI. Finally, a performance index was developed which allows comparing different maintenance activities and identifying better maintenance strategies. The tool was implemented in a spreadsheet and applied to 3 cases of Chilean highways to illustrate the potential of the model. It was concluded that the tool developed is suitable for before and after assessment of maintenance programs. One of its advantages is that little data are needed in comparison with other maintenance assessment tools.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9789561412309
• Supplemental Notes:
  • The local host for the conference is Pontificia Universidad Catolica de Chile; the international host is the Transportation Research Board of the National Research Council, USA.
• Corporate Authors:

  Pontificia Universidad Catolica de Chile

  College of Engineering
  Avenida Vicuna Mackenna 4860, Macul
  Santiago,   Chile 
• Authors:
  • Vera, Ignacio
  • Thenoux, Guillermo
  • Echaveguren, Tomas
  • de Solminihac, Hernan
• Conference:
  • Eighth International Conference on Managing Pavement Assets
  • Location: Santiago , Chile
  • Date: 2011-11-15 to 2011-11-19
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 12p
• Monograph Title: 8th International Conference on Managing Pavement Assets, November 15-19, 2011, Santiago, Chile: "Fulfilling the Social, Economic and Environmental Responsibility for Sustainable, Well Managed, Better Roads"

Subject/Index Terms

• TRT Terms: Asphalt pavements; Concrete pavements; Evaluation and assessment; Maintenance management; Mathematical models; Pavement maintenance; Pavement performance
• Identifier Terms: International Roughness Index
• Geographic Terms: Chile
• Subject Areas: Highways; Maintenance and Preservation; Pavements; I60: Maintenance;

Filing Info

• Accession Number: 01367923
• Record Type: Publication
• ISBN: 9789561412309
• Report/Paper Numbers: ICMPA181
• Files: TRIS
• Created Date: Apr 16 2012 3:02PM