Quantifying the Consequences of Hastened or Deferred Interventions

The mistiming of interventions is a critical issue in asset management. A treatment that is applied too early (hastened) or too late (deferred) has consequences in terms of the agency cost, facility performance, and cost-effectiveness. This paper uses basic concepts in costing and effectiveness analysis to develop a methodology for quantifying the consequences of hastening or deferring interventions that are intended to preserve highway assets. A case study involving pavement treatments is presented to demonstrate the practical application of the methodology. The results of the case study suggest that the consequences of hastened or deferred interventions can differ across asset classes as well as across intervention types: the consequent life-cycle cost increases and performance loss are more severe for non-interstate highways compared to interstate highways; and are more severe for maintenance compared to rehabilitation. Recognizing that in the practical world, the timing of interventions need not be at the exact levels prescribed in the earlier section of the paper, the paper goes on to show how an agency could use the developed methodology to establish acceptable ranges of intervention timing. Using the methodology, an agency could introduce flexibility in its preservation schedules by establishing the earliest and the latest times for applying an intervention.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Khurshid, Muhammad Bilal
  • Irfan, Muhammad
  • Ahmed, Anwaar
  • Labi, Samuel
• Conference:
  • Transportation Research Board 90th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2011-1-23 to 2011-1-27
• Date: 2011

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; References; Tables;
• Pagination: 20p
• Monograph Title: TRB 90th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Asset management; Case studies; Cost effectiveness; Deferred maintenance; Highway maintenance; Life cycle costing; Maintenance; Pavement performance; Preservation; Surface treating
• Uncontrolled Terms: Interventions; Timing
• Subject Areas: Highways; Maintenance and Preservation; Pavements; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01340248
• Record Type: Publication
• Report/Paper Numbers: 11-2348
• Files: TRIS, TRB
• Created Date: May 18 2011 11:21AM