MODELLING OF LIFE-CYCLE COSTS OF PAVEMENT REHABILITATION

The rehabilitation of pavements can be regarded as a cycle of gradual depreciation and subsequent replacement of the capital invested in the pavement layers of roads. The capital recovery cost is functionally related to the strength of the pavement and the life-cycle length between rehabilitation measures, which is the basis for annual worth cost analysis of any rehabilitation measure. Whereas the cost of such measures is composed of a fixed term and a term which varies with overlay thickness, the life-cycle length is dependent on the acceptable minimum performance or serviceability level and the strength of the rehabilitated pavement structure. These relationships and a financial equation for annualized costs are the basic modules of the proposed modelling. If user costs are not included in the analysis, single overlays done more frequently seem to be economical compared to multi-course overlays and less frequent rehabilitations. (Author/TRRL)

• Corporate Authors:

  Ontario Ministry of Transportation & Communic, Can

  1201 Wilson Avenue
  Downsview, Ontario M3M 1J8,   Canada 
• Authors:
  • Jung, F W
• Publication Date: 1985-11

Media Info

• Features: Figures; References; Tables;
• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Analysis; Capital costs; Costs; Depreciation; Driver rehabilitation; Equations; Life cycle analysis; Life cycle costing; Mathematical models; Overlays (Pavements); Pavement management systems; Pavement performance; Strength of materials; Thickness
• Uncontrolled Terms: Cost analysis; Rehabilitation
• Old TRIS Terms: Pavement serviceability ratings
• ITRD Terms: 224: Cost; 5910: Durability; 132: Forecast; 227: Investment; 3847: Maintenance; 6473: Mathematical model; 2955: Pavement; 1053: Road network; 240: Road pricing; 3096: Strengthening (pavement); 5933: Thickness
• Subject Areas: Economics; Finance; Highways; Pavements; Society;

Filing Info

• Accession Number: 00478470
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TRIS
• Created Date: Jan 31 1989 12:00AM