scholarly journals Urban Water Infrastructure Asset Management Plan: Case Study

2019 ◽  
Vol 9 (1) ◽  
pp. 459-467
Author(s):  
Bruno Ferreira ◽  
Nelson J. G. Carriço

AbstractThe current paper aims the application of the Portuguese infrastructure asset management (IAM) methodology to a case study. The inevitable degradation of urban water infrastructures creates new challenges for water utilities engineers and manager, as they need to decide which components should be rehabilitated to efficiently match the public’s demand, while still providing a qualitative and efficient service that doesn’t compromise the financial integrity of water utilities.This methodology is based on a five-step structured sequence - (i) definition of objectives assessment criteria and metrics; (ii) diagnosis; (iii) plan production; (iv) plan implementation; and (v) monitoring and revision – being structured in three distinct levels of planning and decision (i.e., strategic, tactical and operational). The IAM methodology was applied to a sixty-year-old water supply system (WSS) located in Lisbon’s metropolitan area, Portugal, mainly focused on steps (i) to (iii) and to the tactical level of planning. Results obtained are discussed and the main conclusions are presented.

2012 ◽  
Vol 66 (12) ◽  
pp. 2702-2711 ◽  
Author(s):  
M. A. Cardoso ◽  
M. Santos Silva ◽  
S. T. Coelho ◽  
M. C. Almeida ◽  
D. I. C. Covas

Water services are a strategic sector of large social and economic relevance. It is therefore essential that they are managed rationally and efficiently. Advanced water supply and wastewater infrastructure asset management (IAM) is key in achieving adequate levels of service in the future, particularly with regard to reliable and high quality drinking water supply, prevention of urban flooding, efficient use of natural resources and prevention of pollution. This paper presents a methodology for supporting the development of urban water IAM, developed during the AWARE-P project as well as an appraisal of its implementation in four water utilities. Both water supply and wastewater systems were considered. Due to the different contexts and features of the utilities, the main concerns vary from case to case; some problems essentially are related to performance, others to risk. Cost is a common deciding factor. The paper describes the procedure applied, focusing on the diversity of drivers, constraints, benefits and outcomes. It also points out the main challenges and the results obtained through the implementation of a structured procedure for supporting urban water IAM.


2020 ◽  
Vol 82 (12) ◽  
pp. 2737-2744
Author(s):  
N. Carriço ◽  
B. Ferreira ◽  
R. Barreira ◽  
A. Antunes ◽  
C. Grueau ◽  
...  

Abstract Water utilities collect, store and manage vast data sets using many information systems (IS). For infrastructure asset management (IAM) planning those data need to be processed and transformed into information. However, information management efficiency often falls short of desired results. This happens particularly in municipalities where management is structured according to local government models. Along with the existing IS at the utilities' disposal, engineers and managers take their decisions based on information that is often incomplete, inaccurate or out-of-date. One of the main challenges faced by asset managers is integrating the several, often conflicting, sources of information available on the infrastructure, its condition and performance, and the various predictive analyses that can assist in prioritizing projects or interventions. This paper presents an overview of the IS used by Portuguese water utilities and discusses how data from different IS can be integrated in order to support IAM.


Water ◽  
2017 ◽  
Vol 9 (2) ◽  
pp. 68 ◽  
Author(s):  
Franz Tscheikner-Gratl ◽  
Patrick Egger ◽  
Wolfgang Rauch ◽  
Manfred Kleidorfer

The decisions taken in rehabilitation planning for the urban water networks will have a long lasting impact on the functionality and quality of future services provided by urban infrastructure. These decisions can be assisted by different approaches ranging from linear depreciation for estimating the economic value of the network over using a deterioration model to assess the probability of failure or the technical service life to sophisticated multi-criteria decision support systems. Subsequently, the aim of this paper is to compare five available multi-criteria decision-making (MCDM) methods (ELECTRE, AHP, WSM, TOPSIS, and PROMETHEE) for the application in an integrated rehabilitation management scheme for a real world case study and analyze them with respect to their suitability to be used in integrated asset management of water systems. The results of the different methods are not equal. This occurs because the chosen score scales, weights and the resulting distributions of the scores within the criteria do not have the same impact on all the methods. Independently of the method used, the decision maker must be familiar with its strengths but also weaknesses. Therefore, in some cases, it would be rational to use one of the simplest methods. However, to check for consistency and increase the reliability of the results, the application of several methods is encouraged.


2010 ◽  
Vol 3 (3) ◽  
pp. 139
Author(s):  
Patrick Thomaz de Aquino Martins

Com o objetivo de identificar e caracterizar áreas prioritárias à preservação e à recuperação de formações florestais naturais no entorno das represas de Paraibuna, Paraitinga e Santa Branca, Estado de São Paulo, a partir da definição de Áreas de Proteção Permanente (APPs), foi estabelecida uma faixa marginal de 100m e analisada a distribuição da cobertura vegetal e uso do solo atuais. Houve a constatação de um padrão de uso do solo e cobertura vegetal em ambas as represas (Santa Branca e Paraibuna-Paraitinga), caracterizado pela predominância da classe pasto/agricultura (61%), seguido de mata/capoeira (25%), e eucalipto, (10%). O percentual remanescente ficou representado pelas classes unidade urbana, solo exposto e água. Sendo a classe mata/capoeira a única a ser prioritária à preservação, esta representa quase que ¼ da área total de APP. A área prioritária à recuperação (pasto/agricultura, eucalipto e solo exposto) prevalece, ao passo que as não enquadradas (água e unidade urbana) possuem uma participação irrisória. Por gerar recursos econômicos importantes aos municípios, um plano de manejo dessa área se faz necessário. A manutenção do panorama atual no entorno das represas pode ter influência negativa direta na qualidade de água, prejudicando assim o abastecimento de água aos municípios servidos por esta.Palavras-chave: Geotecnologias, Área de Proteção Permanente, Código Florestal Brasileiro. Priority Areas to Natural Forest Communities Preservation and Recovery: Case Study in Adjacencies of Basin River Dams from Alto Vale do Paraíba, São Paulo, Brazil ABSTRACT The aim of this research is to identify priority areas to the preservation and the recovery of natural forest formations around the dams of Paraibuna, Paraitinga and Santa Branca, São Paulo State. From the definition of Permanent Protection Areas (APP), it was established a buffer of 100m and it was analyzed the vegetal covering distribution and also the current use of the ground. It was verified a pattern of land use and vegetation cover in both reservoirs (Santa Branca and Paraibuna-Paraitinga), characterized by the predominance of class pasture/agriculture (61%), followed of forest/“capoeira” (25%), and eucalyptus, (10%). The remaining percentage was represented by the classes unit urban, exposed soil and water. As the class forest/“capoeira” is the only priority to preservation, this represents almost ¼ of the total area of APP. The priority area for rehabilitation (pasture/agriculture, eucalyptus and exposed soil) prevails, while those not covered (water and urban unit) have a ridiculous stake. Since this area generates significantly economic resources to municipalities, a management plan for it is necessary. The permanence of the current landscape around the dams may have direct negative impact on water quality and adversely affect the water supply to municipalities served by it. Keywords: Geotechnologies, Permanent Protection Areas, Brazilian Forest Code.


2016 ◽  
Vol 74 (7) ◽  
pp. 1518-1526 ◽  
Author(s):  
M. A. Cardoso ◽  
A. Poças ◽  
M. S. Silva ◽  
R. Ribeiro ◽  
M. C. Almeida ◽  
...  

The requirement to provide urban water services continuously while infrastructures are ageing, imposes the need for increasingly sustainable infrastructure asset management (IAM). To achieve and maintain adequate levels of service, the AWARE-P IAM methodology has been applied in collaborative projects launched by the National Civil Engineering Laboratory, in partnership with IST (Technical University of Lisbon), Addition (software company) and several water utilities. The objective of these projects is to support urban water utilities in the development, implementation and maintenance of IAM plans. To guarantee the success of IAM planning, following the AWARE-P IAM methodology, utilities are required to: consider that the infrastructure has system behaviour and lifespan is indefinite and guarantee the full-alignment of IAM planning with organisation objectives. By analysing the strategic and tactical plans of participating utilities, the proposed methodology principles are discussed and supported. The main innovation results from the implementation of IAM planning are also presented and discussed, including the challenges of setting up an IAM process, together with the major benefits and drawbacks that come up when developing IAM plans. The results were demonstrated by the effective implementation of 16 strategic and 14 tactical IAM plans by the participating utilities.


Author(s):  
E. Okwori ◽  
Y. Pericault ◽  
R. Ugarelli ◽  
M. Viklander ◽  
A. Hedström

Abstract Analytical tools used in infrastructure asset management of urban water pipe networks are reliant on asset data. Traditionally, data required by analytical tools has not been collected by most water utilities because it has not been needed. The data that is collected might be characterised by low availability, integrity and consistency. A process is required to support water utilities in assessing the accuracy and completeness of their current data management approach and defining improvement pathways in relation to their objectives. This study proposes a framework to enable increased data-driven asset management in pipe networks. The theoretical basis of the framework was a literature review of data management for pipe network asset management and its link to the coherence of set objectives. A survey to identify the current state of data management practice and challenges of asset management implementation in five Swedish water utilities and three focus group workshops with the same utilities was carried out. The main findings of this research were that the quality of pipe network datasets and lack of interoperability between asset management tools was a driver for creating data silos between asset management levels, which may hinder the implementation of data-driven asset management. Furthermore, these findings formed the basis for the proposed conceptual framework. The suggested framework aims to support the selection, development and adoption of improvement pathways to enable increased data-driven asset management in municipal pipe networks. Results from a preliminary application of the proposed framework are also presented.


2018 ◽  
Vol 86 (3) ◽  
pp. 513-528 ◽  
Author(s):  
Mohammad Al-Saidi

The article analyzes decentralization and commercialization reforms in the Yemeni urban water and sanitation sector. The case study shows that sector reforms to increase the performance and independence of water utilities in developing countries can become entangled in conflicting political agendas, leading to the derailing of reforms. The reform process in the Yemeni case is presented as part of sector-wide policy change due to increasing scarcity, supply crises, and pressure from donors. A measurement framework for the level of decentralization and commercialization of water utilities is developed and applied. The future reform pathways are outlined, giving consideration to the current political reality in Yemen. Points for practitioners Water decentralization reforms need to follow technical considerations regarding the capacity and independence of utilities in order to enhance any positive impacts of decentralization. Institutional conflicts are difficult to tackle during an ongoing reform process, particularly in a context of corruption, politicization, and state fragility. There is a need for more context-specific reform agendas and better strategies to deal with conflicts and shield utilities from political interference. Further, effective commercialization requires a level of accountability at the local level and improved capacities of staff. Such capacities can be enhanced through trainings ahead of reforms.


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