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Change to Poster Presentation at the Conference, with Full Paper in Conference Proceedings

Pavement Design, Evaluation, Preservation, Maintenance, and Rehabilitation

Session: Meet the Author - Poster Session PS-5

1372923 - Influence of climatic factors on the pavement performance in MEPDG

Friday, June 16, 2023
1:30 PM – 3:00 PM CST
Room: Governor's Grand Ballroom
Salon ABC
TRACK: Poster Presentation with a Paper in the Proceedings
As per Federal Highway Administration (FHWA), climatic factors alone contribute up to 36 and 24 percent in total damage to flexible and rigid pavements respectively. Hence, it is important to understand the influence of climatic factors on pavement performance as well as the design methodologies. The existing literature evaluated the sensitivity of individual climatic and traffic factors on pavement performance. Though the significance of temperature on pavement performance is highlighted, the sensitivity of interactions between multiple climatic factors that include precipitation, wind speed, humidity and percentage sunshine on performance prediction needs to be properly comprehended. Also, the sensitivity of interaction between various traffic and climatic factors could be highly significant. Therefore, the objective of this study is to evaluate the sensitivity of individuals and interactions of climatic and traffic factors on predicted pavement performance. This study considers air temperature, precipitation, wind speed, humidity, percentage sunshine, and groundwater table as the climatic factors and the Annual Average Daily Truck Traffic (AADT) as the traffic factor. AASHTO design software, MEPDG was exercised in flexible pavement design and sensitivity analysis was performed on the above-mentioned factors. A fractional factorial design (27-2) is considered to determine the statistical significance of individual and interaction factors on performance prediction.

Learning Objectives:

Attendees can expect to learn the following from this session:
  • Determine the significance of individual and interaction of climatic and vehicular factors on pavement performance
  • Identify the most crucial climatic parameters in the pavement performance prediction
  • Influence of various climatic parameters on distress prediction