Browsing by Author "Elmasry M."

Now showing items 1-7 of 7

    • An economic loss model for failure of sewer pipelines 

      Elmasry M.; Hawari A.; Zayed T. ( Taylor and Francis Ltd. , 2018 , Article)
      Estimating the costs of failure for sewer pipelines is usually accompanied with uncertainties because of the difficulty in capturing the relationship between the physical and economical characteristics of failed pipelines. ...

    • Automated defect detection tool for closed circuit television (cctv) inspected sewer pipelines 

      Hawari A.; Alamin M.; Alkadour F.; Elmasry M.; Zayed T. ( Elsevier B.V. , 2018 , Article)
      In sewer networks, the economic effects and costs that result from a pipeline failure are rising sharply. As a result, there is huge demand for inspection and rehabilitation of sewer pipelines. In addition to being inaccurate, ...

    • Condition assessment model for sewer pipelines using fuzzy-based evidential reasoning 

      Hawari A.; Alkadour F.; Elmasry M.; Zayed T. ( Taylor and Francis Ltd. , 2018 , Article)
      A condition assessment model for gravity and pressurised sewer pipelines using Fuzzy Set Theory (FST), and Evidential Reasoning (ER) with the aid of Fuzzy Analytical Network Process (FANP) integrated with Monte-Carlo ...

    • Defect based risk assessment model for prioritizing inspection of sewer pipelines 

      Elmasry M.; Hawari A.; Zayed T. ( American Society of Civil Engineers (ASCE) , 2018 , Conference Paper)
      In presence of financial constraints and dire need for inspecting deteriorated sewer pipelines, inspection prioritization tools are required. This paper presents a defect based risk assessment model for prioritizing ...

    • Defect-based ArcGIS tool for prioritizing inspection of sewer pipelines 

      Elmasry M.; Zayed T.; Hawari A. ( American Society of Civil Engineers (ASCE) , 2018 , Article)
      This paper presents a defect-based model for assessing risk of failure for sewer pipelines. The proposed model deploys a Sugeno fuzzy inference system to create a risk index from which inspection and replacement activities ...

    • Determining relative weights of sewer pipelines' components and defects 

      Daher S.; Zayed T.; Elmasry M.; Hawari A. ( American Society of Civil Engineers (ASCE) , 2018 , Article)
      Condition assessment models for sewer network components can be considered a tool for key personnel to make informed decisions regarding the required interventions on the basis of the current conditions of these components. ...

    • Multi-Objective Optimization Model for Inspection Scheduling of Sewer Pipelines 

      Elmasry M.; Zayed T.; Hawari A. ( American Society of Civil Engineers (ASCE) , 2019 , Article)
      Inspection activities play an important role in the operation and maintenance (O&M) strategy in municipalities. Efficient O&M strategies can help in making informed decisions based on the actual condition of pipelines ...