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Assessing Pavement Traffic-Induced Responses by Integrating Data from an Instrumented Test Section and Numerical Modeling

Abstract

Since July 2023, a significant amount of in-situ pavement responses has been collected and analyzed from a new instrumented section built in the access road to the Edmonton Waste Management Center (EWMC), located in the Northeast of the city of Edmonton, Alberta, Canada. The data has been continuously recorded and stored locally, and afterwards processed. This research provides recent information regarding structural parameters, such as induced strains, which can directly relate to pavement performance. In addition, a Weigh-in-Motion (WIM) system was used to provide detailed insight about the traffic conditions. A dynamic modulus (DM) test was also conducted on asphalt samples collected during the construction of the instrumented test section. Based on the characteristics of the asphalt mix and the axle load information from the WIM system, induced strain values were calculated using a pavement analysis and design software (KENPAVE). The calculated values were then compared with the measured strain values from the sensors. Through this comparison, areas of convergence and divergence were identified, providing a comprehensive understanding of pavement traffic-induced responses as well as a foundation for refining data collection and analysis. One interesting finding was the reliability of the strain transducers, which proved to be satisfactory.

Keywords: Pavement performance; Instrumentation; Monitoring; Data analysis; Induced strain.

Conference Paper Details

Session title:
Testing and Modeling of Roadway/Embankment Materials and Geotechnical Engineering
Author(s):
Linares, Silas Henrique Barbosa De Carvalho
Moghaddam, Taher Baghaee
Shafiee, Mohammad
Hashemian, Leila
Bayat, Alireza
Topics:
Pavements
Year:
2024