• An integrated ANP and er condition assessment model for sewer pipelines 

      Hawari, Alaa; Alkadour, Firas; Zayed, Tarek ( International Society for Trenchless Technology , 2015 , Conference Paper)
      As sewer networks age, the need for their maintenance arises. Simultaneously, inadequate rehabilitation of sewer pipelines might cause catastrophic failures. Thus, municipalities worldwide must have a detailed knowledge ...
    • Condition assessment of sewer pipelines using multi attribute utility theory (MAUT) 

      Kaddoura, Khalid; Zayed, Tarek; Hawari, Alaa H. ( International Society for Trenchless Technology , 2016 , Conference Paper)
      Many municipalities rely on the interpretation of Closed Circuit Television (CCTV) inspection reports to arrive to a condition assessment grade for the inspected sewer pipelines. The grades stand as a key for decision ...
    • Developing a framework for calculating LCA normalization factors for the State of Qatar 

      Attallah, S.O.; Kandil, A.; Senouci, A.; Al-Derham, H.; Cai, H.; ... more authors ( Canadian Society for Civil Engineering , 2013 , Conference Paper)
      Life Cycle Analysis (LCA) has recently emerged as a powerful tool for assessing the environmental impact of materials, systems and processes used in building construction. With its ability to clarify the ambiguities of the ...
    • Sewer Inspection Prioritization Using a Defect-Based Bayesian Belief Network Model 

      Elmasry,Mohamed; Zayed, Tarek; Hawari, Alaa ( American Society of Civil Engineers (ASCE) , 2016 , Conference Paper)
      In order to successfully implement an asset management program, an accurate and reliable deterioration model for assets should be available. Deterioration models are considered as the basis for predicting and prioritizing ...