Abstract
In water distribution system, leaks and breaks occur because of degradation and/or corrosion under the influence of aged pipes and/or underground environment. Pipe material also makesa difference in the probability of breaks. This paper focused on water loss amount from leaks and breaks in distribution submains, and made a prediction model to quantify the leakage using pipe ages and materials as influence factors. We fit the model with application of Real-Coded GA that find the most suitable coefficient vector in real space. In consequence, our model could predict leakage amount in the future with some alternatives of the management and the renewal planning of water sub-mains.
