Asset degradation modelling for asset renewals at Townsville Water
Tracks
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| Wednesday, November 9, 2016 |
| 3:45 PM - 4:15 PM |
| Plaza P6 |
Speaker
Sen Vigneswaran
Senior Engineer - Asset Management
Townsville City Council
Asset Degradation Modelling for Asset Renewals at Townsville Water
Abstract
The ISO 55000 standard for Asset Management states that the effective control and governance of assets by organisations is essential to realise value through managing risk and opportunity, in order to achieve the desired balance of cost, risk and performance. Townsville Water must understand asset condition, risk, and life cycle costs of its assets to improve asset renewal decision making and achieve sustainability in business performance.
Townsville Water faces the challenge of managing the on-going deterioration of numerous assets, utilised to supply water and collect and treat wastewater. Townsville Water has many asset types with different time scales of deterioration, being affected by a vast array of environmental and operational context and having differing impacts on the operations and budgets. To achieve excellence, Townsville Water undertakes a formal asset management program that incorporates a comprehensive asset maintenance strategy, including the assessment of asset condition and risk to make informed long term asset renewal decisions.
Physical degradation indicators are observed and recorded from maintenance and inspection activities. The condition threshold is determined by assigning a relative weighting to each degradation indicator and a frequency of failure score. This weighting and frequency of failure score is assigned through a collaborative approach by Engineers, Designers, Operators, and Maintenance Technicians. The degradation models synthesize the data associated to asset attributes with collected degradation indicators to derive a condition rating (CR) of each asset. Finally, Renewal Rating (RR) of each asset is calculated by incorporating Overall Risk Rating (ORR), Life Cycle Cost Rating (LCCR) and Future Upgrade Rating (FUR) into asset degradation models. This renewal rating of each asset is considered for renewal prioritisation process for allocation of funding to achieve the desired balance of cost, risk and performance.
This paper will discuss how degradation models are compiled to derive the asset condition rating for various asset types in Townsville Water; and how the renewal rating is calculated by balancing risk, cost and performance in asset renewal decision making for Townsville Water.
Townsville Water faces the challenge of managing the on-going deterioration of numerous assets, utilised to supply water and collect and treat wastewater. Townsville Water has many asset types with different time scales of deterioration, being affected by a vast array of environmental and operational context and having differing impacts on the operations and budgets. To achieve excellence, Townsville Water undertakes a formal asset management program that incorporates a comprehensive asset maintenance strategy, including the assessment of asset condition and risk to make informed long term asset renewal decisions.
Physical degradation indicators are observed and recorded from maintenance and inspection activities. The condition threshold is determined by assigning a relative weighting to each degradation indicator and a frequency of failure score. This weighting and frequency of failure score is assigned through a collaborative approach by Engineers, Designers, Operators, and Maintenance Technicians. The degradation models synthesize the data associated to asset attributes with collected degradation indicators to derive a condition rating (CR) of each asset. Finally, Renewal Rating (RR) of each asset is calculated by incorporating Overall Risk Rating (ORR), Life Cycle Cost Rating (LCCR) and Future Upgrade Rating (FUR) into asset degradation models. This renewal rating of each asset is considered for renewal prioritisation process for allocation of funding to achieve the desired balance of cost, risk and performance.
This paper will discuss how degradation models are compiled to derive the asset condition rating for various asset types in Townsville Water; and how the renewal rating is calculated by balancing risk, cost and performance in asset renewal decision making for Townsville Water.
Biography
Senduran Vigneswaran was born in Sri Lanka in 1979. He received a B.Sc Engineering Honours Degree in Civil Engineering from the University of Moratuwa, Sri Lanka, in 2004. He also holds a Post Graduate Diploma in System Analysis and Design from British Computer Society in UK, and Asset Management Diploma from LGAQ in Australia. He currently undertakes a MBA (Technology Management) program from the Torrens University, Australia, and four more units to be completed for graduation. He is an active member of Institute of Engineers Australia and Australian Water Association.
He is a strong advocate for asset management to achieve sustainability in business performance. His goal is to develop and implement strategies to realise value through sustainable asset management practises, in order to achieve the desired balance of cost, risk and performance. He currently leads Townsville Water's asset management strategy development and deployment for ISO 55000 accreditation. His professional experience in project management and asset management spans over ten years in water and wastewater industry. He has worked in Sri Lanka, United Kingdom and Australia for private and local government sectors.
He introduced DMAIC (Define, Measure, Analyse, Improve and Control) breakthrough strategy and BPR (Business Process Re-engineering) innovative concepts to Townsville Water's asset management function as a continuous improvement practice. As a result, a good level of compliancy was assessed at the ISO 55000 maturity assessment for Townsville Water asset management function in 2014. He deployed a mobile asset management solution for Townsville Water to collect data on degradation indicators against each asset through maintenance and inspection activities. He recently compiled Townsville Water's first evidence based renewal program by balancing cost, risk and performance.
