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Relevance of Maintenance Function in Asset Management
Published in Diego Galar, Peter Sandborn, Uday Kumar, Maintenance Costs and Life Cycle Cost Analysis, 2017
Diego Galar, Peter Sandborn, Uday Kumar
The development of an asset management strategy is the key to managing assets throughout the life cycle from acquisition to disposal. It is part of an overall framework that includes an asset management policy and strategy, a total asset management plan, and individual asset management plans. This allows a rational approach to capital acquisition and renewal and the adoption of a risk management approach to asset management and business-driven maintenance.
Key performance indicators for small and medium-sized urban water systems in a semi-arid region: a case study of Okanagan Valley, Canada
Published in Urban Water Journal, 2023
Sarin Raj Pokhrel, Gyan Chhipi-Shrestha, Kasun Hewage, Rehan Sadiq
Infrastructure: Sewer blockages are the first KPI. These blockages are common type of operational failure occurring in the sewer mains, leading to loss of services and flooding. Identifying it as an important KPI will assist municipal managers to shift their attention in building various models that can predict sewer blockages (Altarabsheh et al. 2019). Average annual life cycle investment (AALCI) is the second KPI. According to the CoK asset management plan in 2017, the wastewater infrastructure is depreciating at $10.9 million per year, while only $3.7 million is separated for the renewal for the upcoming 10 years (City of Kelowna 2017b). The reason behind selecting this KPI may be attributed to understanding the status of their utility in regards to funds available in their jurisdiction. Reported sewer failure is the third KPI. The pipes installed for the wastewater conveyance are subjected to various stresses because of inefficient design and construction, aging infrastructure, and combined sewer flow or traffic loads. These stresses lead to sewer failures incidents, such as infiltration and exfiltration, corrosion, pipe breaks and cracks, and deformations (Damvergis 2014). Age of the wastewater treatment plant is the last KPI. Aging infrastructure is a key problem for utilities. The selection of this KPI is justified because continuous monitoring of wastewater assets will ensure that the upgrade activities are conducted both efficiently and effectively based on consumer needs.
Risk-informed asset management to tackle scouring on bridges across transport networks
Published in Structure and Infrastructure Engineering, 2022
Manu Sasidharan, Ajith Kumar Parlikad, Jennifer Schooling
Overall, the key objectives of the risk-informed framework presented herein are to determine the likelihood of scouring and consequence of bridge failure or closures and make optimal risk-informed decisions related to inspection, maintenance and replacement, while dealing with uncertainty associated with the unavailability of data. The presented conceptual approach can, therefore, be used by bridge infrastructure managers and senior decision-makers for:Preparing a network-level bridge asset management plan while considering the user requirements and risk of disruptions.Identifying value-based asset management practices for given levels of risk and budgetProducing annual business policies for the network.Reviewing and auditing to seek improvement in the planning approach.
Optimizing transit maintenance and rehabilitation to support human development and sustainability: A case study of Costa Rica’s railroad network
Published in International Journal of Sustainable Transportation, 2019
Alireza Mohammadi, Feras Elsaid, Luis Amador-Jiminez
Human development and sustainability in urban and rural communities could be achieved by improving several interdependent indexes, which are defined by UNDP (2016). In terms of transit infrastructure, some goals could be attained by already existing networks through asset management plan that can be proposed by eight indexes of the environment, poverty, education, health, employment, gender equality, mobility, and financial flow in this research. Each region vulnerability respecting these indexes will be assessed and priority in maintenance and rehabilitation tactical/operational planning is given to the most vulnerable districts. Generally, there are complicated relations between socio-economic indicators while improvement or weakness in one indicator could impact on several indexes. For instance, changing in illiteracy rate advances education as well as enhances health knowledge. Therefore, indexes and indicators in this study are defined as global; however, each transit agency could set its own indexes and corresponding indicators considering strategy and policy. Table 1 summarizes the main components of human development assessment.