Choosing a Water Distribution Pipe Rehabilitation Solution Using the Analytical Network Process Method

Așchilean, Ioan; Giurca, Ioan

doi:10.3390/w10040484

Cited by 28 publications

(10 citation statements)

References 65 publications

(67 reference statements)

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“…The core of the analytical network process is the supermatrix, which depicts the influence and relationships between the elements in the network on other elements. The analytical network process comprises progressive creation of three supermatrices as shown in the following steps [32,33]. In the first step, the unweighted supermatrix is formed based on computing the local priorities and Eigen vectors according to the entries of the pairwise comparison matrices.…”

Section: Defects' Weightsmentioning

confidence: 99%

A Hybrid Multi-Criteria Decision Making Model for Defect-Based Condition Assessment of Railway Infrastructure

et al. 2021

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The condition of railway infrastructure, such as rails, ballasts and sleepers, should always be monitored and analyzed to ensure ride safety and quality for both passengers and freight. It is hard to assess the condition of railway infrastructure due to the existence of various components. The existing condition assessment models are mostly limited to only assess track geometry conditions and structural condition of the railway infrastructure. Therefore, the present research develops a defect-based structural and geometrical condition model of railway infrastructure. The defects of each component are identified and examined through literature and experts in the field. Two main inputs are used to develop the model: (1) the relative weight of importance for components, defects and their categories and (2) defects severities. To obtain the relative weights, the analytic network process (ANP) technique is adopted. Fuzzy logic is used to unify all the different defect criteria and to interpret the linguistic condition assessment grading scale to a numerical score. Hence, the technique for order preference by similarity to ideal Solution (TOPSIS) is used to integrate both weights and severities to determine the railway infrastructure condition. The developed model gives a detailed condition of the railway infrastructure by representing a three-level condition state, for defect categories, components and an overall railway infrastructure. The developed model is implemented to five case studies from Ontario, Canada. The developed model is validated by comparing its results with the real case studies results, which shows similar results, indicating the robustness of the developed model. This model helps in minimizing the inaccuracy of railway condition assessment through the application of severity, uncertainty mitigation and robust aggregation

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Section: Defects' Weightsmentioning

confidence: 99%

A Hybrid Multi-Criteria Decision Making Model for Defect-Based Condition Assessment of Railway Infrastructure

et al. 2021

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“…This allows SWS to plan and schedule the replacement and rehabilitation of the asset program efficiently as well as effectively so that the right assets can be replaced, repaired, and rebuilt in a timely manner. Thus, the real-time monitoring of asset status could be regarded as indicators of preventive maintenance and predictive replacement to prolong the assets' life cycle and cost savings [74][75][76].…”

Section: Prolong Asset Life Cycle and Cost Savingmentioning

confidence: 99%

Rethinking the Framework of Smart Water System: A Review

Yang

Sitzenfrei

2020

Water

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Throughout the past years, governments, industries, and researchers have shown increasing interest in incorporating smart techniques, including sensor monitoring, real-time data transmitting, and real-time controlling into water systems. However, the design and construction of such a smart water system are still not quite standardized for massive applications due to the lack of consensus on the framework. The major challenge impeding wide application of the smart water network is the unavailability of a systematic framework to guide real-world design and deployment. To address this challenge, this review study aims to facilitate more extensive adoption of the smart water system, to increase effectiveness and efficiency in real-world water system contexts. A total of 32 literature pieces including 1 international forum, 17 peer-reviewed papers, 10 reports, and 4 presentations that are directly related to frameworks of smart water system have been reviewed. A new and comprehensive smart water framework, including definition and architecture, was proposed in this review paper. Two conceptual metrics (smartness and cyber wellness) were defined to evaluate the performance of smart water systems. Additionally, three pieces of future research suggestions were discussed, calling for broader collaboration in the community of researchers, engineers, and industrial and governmental sectors to promote smart water system applications.

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“…The Analytic Hierarchy Process (AHP) and the Analytic Network Process (ANP), two traditional Multi-Criteria Decision Making (MCDM) methods, were developed by Tomas Saaty [50][51][52] to organize and analyze complex decision problems. A matrix of judgments on the relative preference between each pair of alternatives/sub-alternatives is obtained by pairwise comparison [53,54]. Finally, the relative importance of each decision criterion is identified.…”

Section: Periurban Sustainability Evaluationmentioning

confidence: 99%

Transitions between Centralization and Metapolization: From City Development Strategy (CDS) to Peri-Urban Development Strategy (PDS)

2020

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The elaboration of City Development Strategies (CDS) helps cities to harness the potential of urbanization through strategic planning, and consequently to contribute to promoting development, balancing city growth, and empowering citizens. Continuous and sprawling development along with peri-urban areas has offered a vast and almost limitless nexus of villages–towns upon which the intensifying needs of development, initiatives, and infrastructures can be grafted. Considering the significant role of constructed nexuses in growth and resilience, and thus in planning for the sustainable development of such urban–rural areas, this study will advance the development of a model of the Urban–Rural Reef ecosystem through discovering its main attributes. In doing so, Aveiro has been distinguished as an urban–rural reef to describe such a case study’s characteristics and to extract the indicators of peri-urban sustainable development strategies. In the next step, the assessment of the peri-urban development strategy (PDS) has been accomplished by using the Multi-Criteria Decision Analysis (MCDM) method and applying the Analytic Hierarchy Process (AHP) approach. Finally, a conclusion has been presented based on the findings for Aveiro urban–rural reefs containing the analysis results and offering some solutions.

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Choosing a Water Distribution Pipe Rehabilitation Solution Using the Analytical Network Process Method

Cited by 28 publications

References 65 publications

A Hybrid Multi-Criteria Decision Making Model for Defect-Based Condition Assessment of Railway Infrastructure

A Hybrid Multi-Criteria Decision Making Model for Defect-Based Condition Assessment of Railway Infrastructure

Rethinking the Framework of Smart Water System: A Review

Transitions between Centralization and Metapolization: From City Development Strategy (CDS) to Peri-Urban Development Strategy (PDS)

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