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Low-volume roads (LVRs) are roads that carry relatively low traffic volumes, typically serving rural or remote areas. These roads, primarily rural and feeder roads, play a crucial role in regional connectivity and economic development. Traditionally, LVRs have been constructed using conventional methods; however, in recent years, newer technological interventions have been introduced to improve their durability and performance, particularly in geotechnically challenging and monsoon-prone regions like Kerala. This study evaluates the pavement condition of bituminous low-volume roads constructed using these newer technologies through a comparative analysis of two recognized methodologies: IRC:82-2015 and ASTM D6433-20. The evaluation was conducted on four road sections in the Idukki and Pathanamthitta districts. Vattathenpadi Road, Adivaram Ottalagalpadi Road, and Balagram Anyarthulu Road (non-conventional) incorporate mechanical stabilization for durability, whereas Kiliyanikal Thoolikulam Road, constructed using conventional methods, is more susceptible to environmental wear. The study highlights differences between ASTM D6433-20’s quantitative PCI classification and IRC 82:2015’s qualitative distress-based rating, emphasizing their implications for maintenance prioritization. Given Kerala’s climate and geotechnical variability, such assessments are vital. The findings advocate an integrated evaluation approach that blends global standards with region-specific considerations to improve road longevity and management in Kerala’s challenging conditions.

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Comparative Analysis of Pavement Condition Assessment Methods for Low-Volume Roads Constructed with New Technology and Conventional Methods: IRC Versus ASTM Approaches

  • 会议论文

  • 发表日期：

    2026年

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  • S. Anas,
  • B. Lekshmi,
  • N. A. Niranjan,
  • Rusaina Roshen,
  • Ashik K. Azad,
  • Priya A. Jacob

摘要

Low-volume roads (LVRs) are roads that carry relatively low traffic volumes, typically serving rural or remote areas. These roads, primarily rural and feeder roads, play a crucial role in regional connectivity and economic development. Traditionally, LVRs have been constructed using conventional methods; however, in recent years, newer technological interventions have been introduced to improve their durability and performance, particularly in geotechnically challenging and monsoon-prone regions like Kerala. This study evaluates the pavement condition of bituminous low-volume roads constructed using these newer technologies through a comparative analysis of two recognized methodologies: IRC:82-2015 and ASTM D6433-20. The evaluation was conducted on four road sections in the Idukki and Pathanamthitta districts. Vattathenpadi Road, Adivaram Ottalagalpadi Road, and Balagram Anyarthulu Road (non-conventional) incorporate mechanical stabilization for durability, whereas Kiliyanikal Thoolikulam Road, constructed using conventional methods, is more susceptible to environmental wear. The study highlights differences between ASTM D6433-20’s quantitative PCI classification and IRC 82:2015’s qualitative distress-based rating, emphasizing their implications for maintenance prioritization. Given Kerala’s climate and geotechnical variability, such assessments are vital. The findings advocate an integrated evaluation approach that blends global standards with region-specific considerations to improve road longevity and management in Kerala’s challenging conditions.