Impacts of Flooding on Asphalt Pavements under Climate Change

Flooding has been identified as the most frequently occurring natural hazard in Canada. Extreme weather events, such as floods and extreme precipitation events, are increasing in intensity and frequency under climate change. The impact of flooding on asphalt pavements has become a rising concern, since pavements are designed based on historical data, which do not adequately reflect current and future climate. Therefore a comprehensive understanding of the flooding impacts o pavements is of great importance for improving their resilience. The objective of this study is to establish an assessment framework for the impacts of flooding on asphalt pavements through fragility analysis, and conduct case study to illustrate the approach. Flood characteristics, pavement damage patterns, damage components, and performance impact factors are investigated. Thirty-six extreme precipitation scenarios with various magnitudes, durations, and numbers of event cycles are loaded to two typical asphalt pavement structures in Southern Ontario by using MEPDG. Then, a probabilistic pavement fragility modeling method is developed for generating fragility functions, which integrate flood hazards, pavement structure, pavement performance, and damage states. Results show that the loss of pavement life is not negligible due to extreme events. Fragility functions and curves are able to demonstrate the probability of exceeding certain pavement damage given flood hazards.

• Corporate Authors:

  Canadian Technical Asphalt Association

  ,   United States 
• Authors:
  • Lu, D
  • TIGHE, SL
  • Xie, WC
• Conference:
  • Proceedings of the Sixth-Second Annual Conference of the Canadian Technical Asphalt Association (CTAA): Halifax, Nova Scotia
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Print
• Pagination: pp. 51-69.
• Monograph Title: Proceedings of the Sixth-Second Annual Conference of the Canadian Technical Asphalt Association (CTAA): Halifax, Nova Scotia

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Conferences; Durability; Floods; Forecasting; Loss and damage; Mathematical analysis; Storms
• Geographic Terms: Canada
• ITRD Terms: 6471: Analysis (math); 4967: Bituminous mixture; 8018: Canada; 8525: Conference; 1614: Damage; 5910: Durability; 2569: Flooding; 132: Forecast; 2522: Storm
• Subject Areas: Hydraulics and Hydrology; I15: Environment;

Filing Info

• Accession Number: 01668500
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: May 3 2018 3:17PM