AN ANALYSIS OF LOAD AND NON-LOAD-RELATED EFFECTS ON FLEXIBLE PAVEMENT PERFORMANCE. SIXTH INTERNATIONAL CONFERENCE, STRUCTURAL DESIGN OF ASPHALT PAVEMENTS, VOLUME I, PROCEEDINGS, UNIVERSITY OF MICHIGAN, JULY 13-17, 1987, ANN ARBOR, MICHIGAN

The determination and knowledge of the relative effects of traffic and environmental factors have significant implications in pavement design, pavement performance monitoring and evaluation technology. In addition, this information would also assist in pavement maintenance and rehabilitation planning and decision making. The paper presents an analysis of the effects of load and non-load factors on flexible and overlay pavement performance by means of (a) a performance-based procedure to estimate quantitatively the relative effects (or responsibilities) of load and non-load factors; and (b) statistical correlation and regression analyses to investigate how individual load and non-load factors influence pavement performance. The analysis presented is based upon the data of the state highway system in Indiana. The data used included the following main categories: pavement inventory data, traffic data, pavement performance data, pavement routine maintenance cost data, and subgrade soil data. The AASHTO serviceability concept was adopted as a measure of pavement performance. A parameter, PSI-ESAL loss, was introduced as a quantitative representation of the performance of a given pavement. This quantity is calculated by integrating the PSI loss of the pavement over imposed traffic loading expressed in ESAL. To investigate the influence of individual load and non-load factors on asphalt pavements in Indiana, statistical correlation and regression analyses were performed to study the relationships between the results of performance analysis and individual factor effects. Based upon the results of the performance analysis, conclusions were drawn concerning the relative shares of load and non-load-related effects on the performance of asphalt pavements in Indiana. Statistical analyses provided further information regarding the relative importance of various climatic factors, traffic load and pavement characteristic variables as to how they affect the performance of asphalt pavements in Indiana.

• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • Fwa, T F
  • Sinha, K C
• Publication Date: 1987

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 428-442
• Serial:
  • Publication of: Michigan University, Ann Arbor
  • Publisher: University of Michigan, Ann Arbor

Subject/Index Terms

• TRT Terms: Asphalt pavements; Climate; Conferences; Environmental impacts; Flexible pavements; Load factor; Overlays (Pavements); Pavement performance; Quantitative analysis; Regression analysis; Serviceability; Statistical analysis; Traffic loads
• Subject Areas: Data and Information Technology; Design; Environment; Freight Transportation; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00485613
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1989 12:00AM