Application of simulated annealing on least-cost design of sewer network

This study employed simulated annealing (SA) to optimize minimum-cost design of sewer network. A sewer network design which contains significantly varied elevations was used as a case study. The results show that SA is able to achieve least-cost solutions which also fulfill all the constraints of design criteria. Based on the average performance of 200 trials, SA exhibits robustness and efficiency for solving sewer network system optimization problems.