A good capital investment decision process systematically addresses the questions of “which projects?” “at what scope & reliability ?,” “at what time ? ” and “for the right reasons”. A good capital investment decision
process will also provide a comprehensive and rigorous decision framework against which these questions can be addressed. Current leading-edge advanced asset management-based approaches to wastewater infrastructure investigation and management utilised in Australia and New Zealand are of
great relevance to wastewater system managers not only seeking compliance with CMOM program requirements but also added confidence that their capital improvement programs(CIP) represent the sound investment of public money. This paper looks at how some of the advanced life cycle asset management
principles have been applied to the development of an upgrade strategy for the trunk wastewater collection system in New Zealand's capital city, Wellington. A key part of the Wellington project process has been to critically review the confidence levels in the source data and also each
of the procedures and processes used. No amount of excellent data can completely overcome poor work processes (failure to address the right questions) and, conversely, no amount of good work process can fully compensate for poor data. Setting minimum acceptable ‘confidence levels’
in these areas is a necessary prerequisite for further investigation and subsequent implementation and procurement of the concepts has also played a key part in confirming the commercial business case for the improvement works. Programs of improvement works were developed to not only maintain
current system performance at sustainable levels but also to improve system performance for a range of levels of service that maybe be expected by the community. The paper shows how this process can be followed and at the same time, many of the requirements for a good CMOM program can be
developed in a cost effective manner.
Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.