Wirahadikusumah, R and Abraham, D M (2003) Application of dynamic programming and simulation for sewer management. Engineering, Construction and Architectural Management, 10(3), pp. 193-208. ISSN 0969-9988
Abstract
This paper proposes a decision-making framework to assist asset managers in decision making regarding sewer maintenance/rehabilitation (M&R) plans under constraints of limited access to sewer condition data. It discusses the application of probabilistic dynamic programming in conjunction with a Markov chain model to analyze the life cycle cost of combined sewer systems. M&R issues have traditionally been addressed with a crisis-based approach, but this study contributes to sewer infrastructure management efforts in developing a management system based on life cycle cost analysis. The framework includes the optimal M&R techniques for sewer projects and the optimal times of application. The role of simulation is also explored to obtain the variability of the total cost. By knowing the expected costs and their variabilities, a deeper understanding of life cycle costs of sewer infrastructure can be obtained. The model's capability is enhanced further by testing its sensivitity to varying discount and inflation rates.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | dynamic modelling; life cycle costing; maintenance programmes; models; prediction; simulation |
| Index terms: | dynamic modelling, decision-making, inflation, life cycle cost, programme, manager, sewer, management system, testing, costing, variability, dynamic programming, life cycle, life cycle cost analysis, infrastructure management, Markov chain |
| Subjects: | project controls, decision analysis, infrastructure and transport systems, statistical analysis, management, economics, accounting and finance, research methods, algorithms, infrastructure engineering, modelling and simulation, professional practice, economic analysis, mathematical modelling, practitioner, value management |
| Topics: | Cost Management, Business Strategy, Engineering Principles, Research Practice, Project Management, Risk Management, Roles and Professions, Digital Applications, Time Control, Organizational Design |
| Descriptive scope: | 3 PCA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here