Seasonal Effects on Roadway Profile and IRI of Asphalt Pavements in Cold Regions

Winter cold temperatures, frost penetration, and freeze-thaw cycles can significantly effect the performance of paved highways. In western Canada, highways can be exposed to sub-zero temperatures over the period from October to April. These temperatures cause pavements to heave, shrink, and crack. Even though about one half of the service life of a pavement in cold regions occurs during a period when some portion of the pavement structure or subgrade may be in a frozen condition, very little evaluation of pavement smoothness is carried out during the winter. This paper presents the results of profile surveys of the Trans-Canada Highway and Yellowhead Highway within Alberta, Saskatchewan, and Manitoba, the Highway 28/28A Interchange near Edmonton, and the Highway 63 corridor to Fort McMurray. The profile surveys were carried out in the winter and in the following summer using the same high speed laser-based inertial profiler. The roadway data collected were post-processed to establish the roadway profiles and to calculate International Roughness Index (IRI) values. These IRI data were analyzed to quantify seasonal changes in IRI. A computer tool was used to identify the type, location, and magnitude of roughness events. Application of this technology will enhance our understanding of seasonal variations in pavement smoothness, overall pavement performance, and selection of appropriate maintenance and preservation treatments.

Language

  • English

Media Info

  • Media Type: Print
  • Pagination: pp 327-349
  • Monograph Title: Proceedings of the Fifty-First Annual Conference of the Canadian Technical Asphalt Association (CTAA)

Subject/Index Terms

Filing Info

  • Accession Number: 01089027
  • Record Type: Publication
  • Source Agency: Transportation Association of Canada (TAC)
  • ISBN: 0921317654
  • Files: TAC
  • Created Date: Jan 31 2008 5:31PM