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Water 2018, 10(2), 136; https://doi.org/10.3390/w10020136

Identifying Critical Elements in Sewer Networks Using Graph-Theory

1
Deltares, P.O. Box 177, 2600 MH Delft, The Netherlands
2
Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600 GA Delft, The Netherlands
3
M. van Bijnen Advies, Donauring 210, 5152 TL Drunen, The Netherlands
4
Partners4urbanwater, Javastraat 104a, 6524 MJ Nijmegen, The Netherlands
5
Delft Institute of Applied Mathematics, Delft University of Technology, P.O. Box 5031, 2600 GA Delft, The Netherlands
*
Author to whom correspondence should be addressed.
Received: 4 December 2017 / Revised: 26 January 2018 / Accepted: 27 January 2018 / Published: 31 January 2018
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Abstract

Underground water infrastructure is essential for life in cities. The aging of these infrastructures requires maintenance strategies to maintain a minimum service level. Not all elements are equally important for the functioning of the infrastructure as a whole. Identifying the most critical elements in a network is crucial for formulating asset management strategies. The graph theory is presented as a means to identify the most critical elements in a network with respect to malfunctioning of the system as a whole. As opposed to conventional methods, the proposed method does not rely on iterative hydraulic calculations; instead, the structure of the network is taken as a starting point. In contrast to methods applied in practise, the results are independent on the chosen test-load. Because of the limited calculation effort, the method allows the analysis of large networks that are now, for practical reasons, beyond the scope of methods applied so-far. View Full-Text
Keywords: 1D-networks; critical sewers; asset management; sewer systems; graph-theory 1D-networks; critical sewers; asset management; sewer systems; graph-theory
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Meijer, D.; van Bijnen, M.; Langeveld, J.; Korving, H.; Post, J.; Clemens, F. Identifying Critical Elements in Sewer Networks Using Graph-Theory. Water 2018, 10, 136.

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