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Use of an Innovative Technology for Measuring Surface Roughness of Pavement

Prajwol Tamrakar, Mark H. Wayne, Kris Broadhead

In the proceedings of: GeoSt. John's 2019: 72nd Canadian Geotechnical Conference

Session: Transportation Geotechnics

ABSTRACT: The City of Cranbrook, British Columbia, CA rehabilitated some aged pavement sections. The aging effects on the pavements were reflected by the presence of alligator cracking, transverse cracking and surface rutting. The pavement sections were rehabilitated with a mechanically stabilized aggregate base course layer. Multi-axial geogrids were selected for constructing a mechanically stabilized layer. One of the benefits of mechanical stabilization is to preserve material stiffness for a longer period. The mechanical stabilization also offers an opportunity for pavement designers to optimize pavement layers and attain the same or higher targeted pavement performance. Pavement surface roughness is one of the indicators of pavement performance. The pavement surface roughness influences the ride quality and is affected by the structural stability of the pavement system and the pavement responses due to traffic and climatic fluctuations. Some commonly used indices of surface roughness are Present Serviceability Rating (PSR) and International Roughness Index (IRI). In the last decade, several advanced techniques were introduced to measure IRI cost-effectively and rapidly. This paper describes the use of smartphone-based technology for measuring IRI of rehabilitated pavements. The IRI information for the pavements constructed with different geogrids and different soil conditions were measured, evaluated and discussed.


Please include this code when submitting a data update: GEO2019_236

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Cite this article:
Tamrakar, Prajwol, Wayne, Mark H., Broadhead, Kris (2019) Use of an Innovative Technology for Measuring Surface Roughness of Pavement in GEO2019. Ottawa, Ontario: Canadian Geotechnical Society.

@article{Tamrakar_GEO2019_236, author = Prajwol Tamrakar, Mark H. Wayne, Kris Broadhead,
title = Use of an Innovative Technology for Measuring Surface Roughness of Pavement,
year = 2019
}