For road pavement management systems, the International Roughness Index (IRI) has become the standard for assessing pavement surface roughness in recent years. It is based on a quarter-car model traveling the pavement surface at a constant speed. The pavement surface is represented by true geometrical figures; i.e. the longitudinal profile represents the pavement surface. Historically, roughness was assessed with mechanical response systems, which is not a bad concept as the result reflects the undesired effects one wants to mitigate. However, the problem with such systems is that they change over time and that they are more or less individual. Thus, the IRI has been proven to satisfactorily describe pavement performance and pavement deterioration. However, it can be criticized for not being a perfect measure for functional performance. First of all airport traffic does not travel at a constant speed. Secondly, the IRI-filter is not relevant for airplanes at all. Further, current fast non-contact profiling platforms are unable to account for wavelengths in excess of 100 m or so, but a new method of measuring the longitudinal pitch of the sensor platform with respect to the ground seems to be promising and a test was initiated in 1997. In the fall of 2002 an improved system was finally tested. If dozens of profiles can be assessed in a matter of minutes along a runway, larger airports will be able to monitor roughness as a functional and safety criterion much as friction is today. The present paper introduces some of the results of the new profiling methods and discusses how data can be implemented in an Airfield PMS. Some experience of using laser profiler data for overlay design purposes is also presented in this paper.

  • Supplemental Notes:
    • Full conference proceedings available on CD-ROM.
  • Corporate Authors:

    World Road Association (PIARC)

    La Grande Arche, Paroi Nord, Niveau 5
    F-92055 La Defense Cedex,   France 
  • Authors:
    • Lenngren, C A
  • Conference:
  • Publication Date: 2003


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 17p

Subject/Index Terms

Filing Info

  • Accession Number: 00987841
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 3 2005 12:00AM