Estimating Water Supply Infrastructure Cost Using Regression Techniques
Publication: Journal of Water Resources Planning and Management
Volume 142, Issue 4
Abstract
The current paper aims at the establishment and validation of reference cost functions for different types of assets of water supply systems based on known hydraulic (e.g., flow, pump head, pump power) and physical (e.g., volume, material, nominal pressure, diameter) characteristics of the assets. A five-step methodology was followed: (1) database construction and asset characterization; (2) present cost value calculation; (3) key parameters and cost function establishment; (4) model specification; and (5) model testing and validation. A sample of cost and infrastructure data from several Portuguese water utilities has been used. Multiple linear regression analysis has been carried out to obtain cost functions. Cost modeling also includes the estimation of prediction bands to describe cost uncertainty. Developed cost functions have been tested and validated using 10% of randomly selected data.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors would like to thank to the AdP group, especially Nuno Lopes and Luis Mamouros, that have provided data and supported this research project. They would also like to thank Susana Lopes and David Figueiredo for the help in data treatment. A special thanks goes to the Ministry of Environment, Territory Planning and Energy, which has partially funded this research through Programa Operacional Sustentabilidade e Eficiência no Uso de Recursos (POSEUR) funds.
References
AACE (American Association of Cost Engineers). (2005). “Cost estimate classification system—As applied in engineering, procurement, and construction for the process industries.” TCM framework: 7.3—Cost estimating and budgeting, 〈http://www.aacei.org/toc/toc_18R-97.pdf〉.
Alegre, H., Covas, D. I. C., Coelho, S. T., Almeida, M. C., and Cardoso, M. A. (2012). “An integrated approach for infrastructure asset management of urban water systems.” Water Asset Manage. Int., 8(2), 10–14.
Clark, R. M., Sivaganesan, M., Selvakumar, A., and Sethi, V. (2002). “Cost models for water supply distribution systems.” J. Water Resour. Plann. Manage., 312–321.
ISO. (2008). “Service life planning—Buildings and constructed assets. Part 5—Life cycle costing.”, Geneva.
Lencastre, A., Carvalho, J., Gonçalves, J., and Piedade, M. (1995). “Building and operating costs.” Sanitation systems management, Vol. 9, Directorate General for Environment of the Ministry of Environment and Natural Resources, Laboratório Nacional de Engenharia Civil, Lisbon, Portugal.
Lindsay, A. K., and Walski, T. M. (1982). “Verification of cost estimating procedures for MAPS computer program.”, Engineer Research and Development Center Library, Vicksburg, MS.
Marchionni, V., Cabral, M., Amado, C., and Covas, D. (2015). “Water supply infrastructure cost modelling.” Procedia Eng., 119(13), 168–173.
Marchionni, V., Lopes, N., Mamouros, L., and Covas, D. (2014). “Modelling sewer systems costs with multiple linear regression.” Water Resour. Manage., 28(13), 4415–4431.
NSW Government, Department of Primary Industries, Office of Water. (2014). “NSW reference rates manual—Valuation of water supply, sewerage and stormwater assets.” Sydney, NSW, Australia.
Oredein, A. I., Olatayo, T. O., and Loyinmi, A. C. (2011). “On validating regression models with bootstraps and data splitting techniques.” Global J. Sci. Frontier Res., 11(6).
Swamee, P. K., and Sharma, A. K. (2008). Design of water supply pipe networks, Wiley, Hoboken, NJ, 79–95.
Walski, T. M. (1980). “MAPS. A planning tool for corps of engineer regional water supply studies.” J. Am. Water Resour. Assoc., 16(2), 215–219.
Walski, T. M. (2012). “Planning-level capital cost estimates for pumping.” J. Water Resour. Plann. Manage., 307–310.
Walski, T. M., and Pelliccia, A. (1981). “Preliminary design and cost estimating for reservoir projects.” J. Am. Water Resour. Assoc., 17(1), 49–56.
Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 142 • Issue 4 • April 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Apr 22, 2015
Accepted: Oct 21, 2015
Published online: Jan 8, 2016
Published in print: Apr 1, 2016
Discussion open until: Jun 8, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.