Imperial College London


Faculty of EngineeringDepartment of Civil and Environmental Engineering

Senior Lecturer



+44 (0)20 7594 6035ivan.stoianov Website




Miss Judith Barritt +44 (0)20 7594 5967




408Skempton BuildingSouth Kensington Campus






BibTex format

author = {Armand, H and Stoianov, I and Graham, N},
doi = {10.2166/hydro.2017.072},
journal = {Journal of Hydroinformatics},
pages = {424--439},
title = {Impact of network sectorisation on water quality management},
url = {},
volume = {20},
year = {2018}

RIS format (EndNote, RefMan)

AB - The sectorisation of water supply networks includes the permanent closure of valves in order to achieve a cost-effective leakage management and simplify pressure control. The impact of networks sectorisation, also known as District Metered Areas (DMAs), on water quality and discolouration has not been extensively studied and it remains unknown. In addition, hydraulic variables used in the literature for assessing the likelihood of potential discolouration are limited and inconclusive. This paper investigates a methodology to evaluate the impact of networks sectorisation (DMAs) on water quality and the likelihood of discolouration incidents. The methodology utilises a set of surrogate hydraulic variables and an analysis of the hydraulic condition in pipes with historic discolouration complaints. The proposed methodology has been applied to a large-scale water supply network, with and without sectors, in order to assess the potential impact of DMAs on water quality. The results demonstrate that the sectorisation of water supply networks (DMAs) could compromise the overall water quality and increase the likelihood of discolouration incidents. The results of this study and the proposed surrogate hydraulic variables facilitate the formulation of optimisation problems for the re-design and control of water supply networks with sectorised topologies.
AU - Armand,H
AU - Stoianov,I
AU - Graham,N
DO - 10.2166/hydro.2017.072
EP - 439
PY - 2018///
SN - 1464-7141
SP - 424
TI - Impact of network sectorisation on water quality management
T2 - Journal of Hydroinformatics
UR -
UR -
VL - 20
ER -