Optimism bias, pathogens and cost overrun: The case of an RTS project in South Africa

Emuze, F and Ravu, P (2014) Optimism bias, pathogens and cost overrun: The case of an RTS project in South Africa. In: Raiden, A and Aboagye-Nimo, E (eds.) Proceedings of 30th Annual ARCOM Conference, 1-3 September 2014, Portsmouth, UK.

Abstract

The demand for electricity in South Africa is on the upward trend. To meet the demand, a state own enterprise embarked upon major infrastructure projects, which have been plagued with cost and schedule overrun. The overrun is particularly severe with return-to-service power projects. The aim of the study was to finds ways of understanding latent factors that promoted overrun in such projects. Thus, with the use of a case study, the paper presents the contributing factors to cost overruns, which were overlooked at project inception. Major stakeholders with planning and implementation responsibilities were interviewed on the case project. A clear trend that was observable by all the interviewees was the inability to address cost and time overrun that was encountered on the project due to the presence of Ôoptimism bias and pathogensÕ in the project environment. Rather, the urgent electricity demand provided a platform for the implantation of optimism bias and planning fallacy, which stimulated pathogens. The practice, industry, task and circumstance related pathogens thus influenced the scale of the cost overrun that has been reported on the case project. The notable insight provided by the exploratory study is that resident pathogens in a complex project environment can work in unison with optimism bias and planning fallacy to engender cost overrun.

Item Type: Conference Paper (Paper)
Uncontrolled Keywords: cost overrun; major projects; South Africa
Index terms: presence, pathogen, bias, electricity demand, South Africa, complex project, infrastructure project, optimism bias, implementation, time overrun, platform, case study, schedule overrun, exploratory study, major project, overrun, cost overrun
Subjects: data collection methods, energy systems, environmental science, contractual arrangements, financial and cost management, strategic project management, health risk and incident analysis, research methods, Geography, digital design, probability and distributions, project controls, cognitive psychology, infrastructure and transport systems
Topics: Sustainability, Procurement, Engineering Principles, Project Management, Geographical Context, Research Practice, Health and Safety, Cost Management, Time Control, Digital Applications
Descriptive scope: 4 PCEA

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