an efficiency-centred hierarchical model is developed to assess the performance ofwastewater treatment plants (wwtps). specifically, a new treatment performance index (tpi) hasbeen proposed to determine the overall treatment performance of wwtp by analysing the tpivalues and the weights of individual treatment phase for overall treatment performance. threemodules have been developed to examine ...

Risk-based assessment in pipe conditions mainly focuses on prioritizing the most critical assets by evaluating risk of failure. This paper's goal is to classify a comprehensive rating model which obtained based series pipe, external, and hydraulic characteristics that are identified for proposed methodology. The traditional manual method assessing sewage structural takes long time. By building ...

Purpose This paper presents a new automated method to predict condition state rating in bridge inspection. The method is designed to identify proper risk-based inspection interval by neural networks and image processing techniques. Method The surface defect considered in this research work is the loss of surface portion (scaling) of concrete due to freezethaw action based on Ontario Structure I...

Routine inspection and maintenance records are essential for bridges to function well throughout their intended lifespan. Although existing bridge management systems are efficient at data storage, it is difficult to conduct comprehensive data analysis and management due to the lack of data integration mechanism. Engineers have to manually put many pieces of bridge drawings and inspection data t...