AN ANALYSIS OF HIGHWAY PAVEMENT DETERIORATION AND A GENERAL TECHNIQUE FOR OPTIMIZATION OF MAINTENANCE/RECONSTRUCTION

The decline in constant-dollar value of the budgets of those who manage the maintenance and reconstruction of the State's 4000-mile highway system has reduced the system's serviceability and led higher authorities to insist that programs and strategies adopted by ConnDOT maximize cost effectiveness, not only of individual projects, but also over the network as a whole. The purpose of the research described in this report was to develop a technique for determining the optimum distribution of resources in these programs and strategies. Presented are an analysis of pavement deterioration and a qualitative discussion of service life. This is followed by a description of the application of a feasible optimization technique--first to an isolated section of highway and then to a network of highways. It is suggested that the technique can be used in a number of variations of two basic approaches. In the most direct of these, a maintenance/reconstruction budget is specified for each of a series of budget periods and the probable resulting performance of the highway system is determined. Alternatively, the desired performance can be specified and the optimum budgets determined. Incidental to the basic purpose of the report are discussions of pavement management in general, data availability and related ConnDOT work. It is important to note that the problem is highly complex and that the proposed technique recognizes the probabilistic nature of the phenomena involved. Through the application of "backwards dynamic programming," the technique allows for adjustment in strategy at various intervals in time to reflect field measurements of the network condition. (Author)

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 93 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00392105
  • Record Type: Publication
  • Report/Paper Numbers: JHR 84-156 Final Rpt.
  • Files: TRIS, STATEDOT
  • Created Date: Feb 28 1985 12:00AM