Development of Pavement Maintenance Management System Using Visual Evaluation of Asphalt Concrete Surface Condition and Expert System

The road transportation system is considered a major component of the infrastructure in any country as it affects the developments in economy and social activities. Asphalt concrete (AC), which is considered the major pavement material for the road transportation system in Iraq, is subjected to continuous deterioration with time due to traffic loading and environmental conditions. It needs a pavement maintenance management system (PMMS) which should be capable for preserving the functional and structural conditions of pavement layers by controlling the continuous distress experienced by the pavement. This paper describes the development of the PMMS using an expert system with visual inspection technique for evaluating the AC pavement surface condition. Common types of AC distress, including bleeding of asphalt, patching, block cracking, edge cracking, longitudinal and transverse cracking, potholes, and longitudinal and transverse deformation, with their various severity and intensity conditions have been included in the system's database. The surface of the pavement will be divided into sections, and the pavement condition will be visually evaluated using specially designed forms, then data will be fed to the expert system using the computer. Various types of intensity and severity of distress will be analyzed by the system, and the present condition rating (PCR) of the pavement section will be determined. The system will then suggest the required maintenance action. The system which was assigned VEACPSC (visual evaluation of asphalt concrete pavement surface condition) was examined in evaluating the asphalt pavement surface condition of the road network for Baghdad University campus at AL-Jaderiah. It was felt that such a system is sound in evaluating pavement surface condition and in suggesting the required maintenance action to be adopted to preserve the AC pavement.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 19p
  • Monograph Title: 7th International Conference on Managing Pavement Assets, June 23-28, 2008, Calgary, Alberta, Canada: "Preserving What We Have, Investing in the Future, and Finding the Balance"

Subject/Index Terms

Filing Info

  • Accession Number: 01447749
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 28 2012 3:30PM