EVALUATION AND OVERLAY DESIGN FOR FLEXIBLE PAVEMENTS ON LOW VOLUME ROADS

The evaluation and overlay design of low volume pavements is a major expense for many governing bodies such as small cities and counties. All over the world such governmental agencies have many miles of flexible pavements to maintain; usually with only small staffs to handle the job. The problem is often complicated further because the agency does not have adequate funding. It is also becoming clear that in the future the maintenance of road pavements will claim a greater part of the funds that are available for highway and road development. Because of these and other factors a rational pavement evaluation and overlay methodology is needed to assist the engineer and preserve the existing investment. To fulfill these needs, an evaluation and overlay design procedure has been developed based on dynamic deflection measurement, elastic layered theory, and behavioral models for fatigue and rutting. The most important aspects of this procedure are that it is 1) currently operational, 2) based on the best theory available, and 3) developed for easy use. This paper describes the procedure and illustrates it with an example problem applied to conditions in Holland. The criteria according to which maintenance operations are carried out are divided into three main groups: 1) Traffic criteria (geometry); 2) Structural characteristics, and; 3) Safety and comfort criteria. A total evaluation procedure must consider all of these elements. For practical application we have chosen a method which emphasizes these aspects, and recognizes the more relevant items for the type of road which is to be evaluated. In the case of the low volume roads, the structural element and the consequences of different maintenance strategies is important and this will be a main part of the paper presentation. Consultation with the road owner and his needs will establish the requirements for the consideration of the traffic, safety, and comfort aspects. /Author/

• Supplemental Notes:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • De Kiewit, P
  • Koning, P C
  • Carmichael, R F
  • Hudson, W R
• Conference:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Publication Date: 1977-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 674-696

Subject/Index Terms

• TRT Terms: Elasticity (Mechanics); Evaluation; Fatigue (Physiological condition); Flexible pavements; Low volume roads; Mathematical models; Pavement design; Pavement maintenance; Pavement performance; Pavements; Ruts (Pavements); Safety
• Uncontrolled Terms: Models; Rut
• Old TRIS Terms: Dynamic deflection determination; Elastic theory
• Subject Areas: Highways; Pavements; Safety and Human Factors;

Filing Info

• Accession Number: 00170243
• Record Type: Publication
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM