Next Article in Journal
Sustainable Land Use, Soil Protection and Phosphorus Management from a Cross-National Perspective
Next Article in Special Issue
Experimental Analysis of Stresses in Subsoil below a Rectangular Fiber Concrete Slab
Previous Article in Journal
Challenging Ingrained Thoughts? The Joint Effect of Stereotypes and Awareness of Related Information on Pro-Environmental Behavior in China
Previous Article in Special Issue
Design Solutions for Sustainable Construction of Pre Engineered Steel Buildings
Open AccessArticle

Reviewing the Long-Term Sustainability of Urban Water System Rehabilitation Strategies with an Alternative Approach

1
Department of Water and Environment, Norwegian University of Science and Technology, 7491 Trondheim, Norway
2
Multiconsult, 0276 Oslo, Norway
*
Author to whom correspondence should be addressed.
Sustainability 2018, 10(6), 1987; https://doi.org/10.3390/su10061987
Received: 30 April 2018 / Revised: 7 June 2018 / Accepted: 12 June 2018 / Published: 13 June 2018
It is generally difficult to assess the performance of an infrastructure with a substantially longer life span than economic models can handle, and the life cycle concepts in urban water systems are normally limited to single-asset projects. In order to explore the long-term impact of urban water infrastructure rehabilitation strategies, a life cycle approach for survival functions is suggested. A life cycle factor based on survival functions is introduced, which is a measuring value of the total expected service life of all pipes within a group of pipes. Another factor, termed the sustainability factor, is based on the relationship between the life cycle factor and a rehabilitation reference method, which makes it possible to correct the long-term performance of rehabilitation methods based on their expected service life provision. A case study presents the implications for investments in infrastructure rehabilitation when applying the sustainability factor in long-term planning, and shows the importance of considering the service life of rehabilitation methods when planning renewal interventions that minimize costs over their life cycles. View Full-Text
Keywords: strategic asset management; sustainability; life cycle; long-term planning; rehabilitation strategy strategic asset management; sustainability; life cycle; long-term planning; rehabilitation strategy
Show Figures

Figure 1

MDPI and ACS Style

Bruaset, S.; Rygg, H.; Sægrov, S. Reviewing the Long-Term Sustainability of Urban Water System Rehabilitation Strategies with an Alternative Approach. Sustainability 2018, 10, 1987.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop