/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1061/(ASCE) WR.1943-5452.0000062 Planning and Management, 136, 5, pp. 519-603, 2010-10-01 Scheduling renewal of water pipes while considering adjacency of infrastructure works and economics of scale Nafi, A.; Kleiner, Y. The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42 ASCE Journal of Water ResourcesLes renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10. 2166/ws.2010.571 Water Science and Technology: Water Supply, 10, 6, pp. 897-906, 2010-06-10 Planning renewal of water mains while considering deterioration, economies of scale and adjacent infrastructure Kleiner, Y.; Nafi, A.; Rajani, B. B.http://www.nrc-cnrc.gc.ca/irc Pla nning re ne w a l of w a t e r m a ins w hile c onside ring de t e riora t ion, e c onom ie s of sc a le a nd a dja c e nt infra st ruc t ure NRCC-53963Kleiner, Y.; Nafi, A.; Rajani, B.B. June 2010A version of this document is published in / Une version de ce document se trouve dans:Water Science and Technology: Water Supply, pp. 897-906 , June 10, 2010, DOI: 10.2166/ws.2010 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42

Most water distribution networks are assemblies of buried elements which makes their diagnosis complex and requires implementing an asset management (AM) policy of actions performed in the short, medium and long terms. To implement such an AM, decision makers must diagnose the condition of the asset by developing specific tools for establishing priorities between assets and plan the actions needed to maintain or improve their condition. This study focuses on two topics. (i) The implementation of a spatiotemporal analysis of the propagation of pipe breaks. This innovative approach inspired by criminality analysis allows focusing on hotspot zones in order to discriminate critical assets. We have designed a new ‘clustering’ criterion that can be used as a prioritization criterion for asset sorting. (ii) The second part addresses the issue of multi-criteria decision making concerning the classification of pipe renewal candidates by comparing two kinds of aggregation method: (i) an unsophisticated approach by using adapted weighted sum methods; and (ii) a sophisticated approach by using the Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) and the ‘Elicitation Et Choix Traduisant la REalité’ (ELECTRE III). The underlying reason for comparing these methods is to know whether the unsophisticated methods ensure reliable replacement policy compared to the sophisticated one.

International audienceWater utilities render a public service that highly influences sensitive domains such as human health, society, economy, environment and policy. In the context of diversification of water uses, scarcity of water resources, pollution of surface and underground resources, energy optimisation and public funding cuts, the improvement of water utility performance represents a real challenge. A water utility is an organisation of human and material resources for the purpose of taking advantage of water resources to deliver drinking water to the population, implying a trade-off between technical, economical, financial and organisational aspects. A partial performance is commonly measured by considering each aspect separately, so a real challenge consists in developing a methodology that includes all the aspects of water utility performance using multiple indicators. The current paper is based on an original conceptual vision of the water utility as an organisation focused on the customer and built on four fundamental pillars: human resources, financial resources, assets and environment. The proposed approach uses an elicitation procedure involving the decision maker to co-build comprehensive core indicators belonging to each pillar and then calibrates them according to the context of the water utility, decision maker preferences and ad-hoc performance thresholds. In the end, performance is assessed both at the individual and overall scale. A specific metric is defined for overall performance calculation that should be monitored over a specified time period to check its trend and redefine implemented policy in the case of a downgraded situation. An illustration of the methodology is given for the water utility of Grenoble (France)