D-Town Water Distribution Network BWN-II

The objective of the D-Town network problem is to determine the best long-term design improvements given projected future water demand and development of a new area.  This analysis takes into account capital and operational costs, greenhouse gas (GHG) emissions and water age.

The D-Town network consists of five existing district metered areas (DMAs) requiring upgrades and an additional new zone to be designed. In total, The D-Town network consists of 399 junctions, 7 storage tanks, 443 pipes, 11 pumps and 5 valves, and a single reservoir.

The D-Town full problem description pdf document and D-Town input file can also be obtained from the BWN-II web page.

The figure of D-Town Water Distribution Network

BWN-II Competition Solutions

The Battle of the Water Networks II (BWN-II) was a competion that involved teams from academia, consulting firms, and utilities from around the world to propose a design methodology and apply it to the D-Town network problem. The results of the BWN-II competition were presented at a special session of the 14th Water Distribution Systems Analysis Symposium. The following  paper summarizes the approaches used by the participants and the results they obtained:

  • Marchi, A., Salomons, E., Ostfeld, A., Kapelan, Z., Simpson, A., Zecchin, A., Maier, H., Wu, Z., Elsayed, S., Song, Y., Walski, T., Stokes, C., Wu, W., Dandy, G., Alvisi, S., Creaco, E., Franchini, M., Saldarriaga, J., Páez, D., Hernández, D., Bohórquez, J., Bent, R., Coffrin, C., Judi, D., McPherson, T., van Hentenryck, P., Matos, J., Monteiro, A., Matias, N., Yoo, D., Lee, H., Kim, J., Iglesias-Rey, P., Martínez-Solano, F., Mora-Meliá, D., Ribelles-Aguilar, J., Guidolin, M., Fu, G., Reed, P., Wang, Q., Liu, H., McClymont, K., Johns, M., Keedwell, E., Kandiah, V., Jasper, M., Drake, K., Shafiee, E., Barandouzi, M., Berglund, A., Brill, D., Mahinthakumar, G., Ranjithan, R., Zechman, E., Morley, M., Tricarico, C., de Marinis, G., Tolson, B., Khedr, A., and Asadzadeh, M.
    (2013). The Battle of the Water Networks II (BWN-II).” Journal of Water Resources Planning and Management in press. doi:10.1061/(ASCE)WR.1943-5452.0000378.
    http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29WR.1943-5452.0000378.

This BWN-II competition networks zip file contains all the final network input files and support files submitted by the participants of the competitions. Please note that the objective values in the Excel files are the ones computed by the partecipants and not the ones used by the committees for the final result of the competition.

Reference set

This D-Town reference set file contains the objective values of the non-dominated feasible solutions from the following sources:

  • Guidolin M., Fu G., and Reed P. (2012). “Parallel evolutionary multiobjective optimization of water distribution system design.” Proceedings of the 14th waterdistribution systems analysis symposium, Engineers Australia, Adelaide, Australia.

Please note that the objective values are the ones computed by the authors of the paper and not the ones used by the committees for the final result of the competition.

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