Time overrun and cost effects of Tailings Storage Facility (TSF) Construction Projects in Ghana
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Date
2021-06-23
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Abstract
Construction project time overrun is endemic and bears both direct and indirect cost
implications to project budgets. This thesis seeks to, by questionnaire measure and
through empirical method assess the percentage cost escalation of TSF projects that have
overran their agreed upon completion dates. Data was obtained from 56 respondents
comprising of contractors (51.8%), consultants (28.6%) and clients (19.6%). Of the total
respondents, 23 were project managers, 20 were Civil Engineers, 8 were Quantity
Surveyors, 5 belonged to other group of professionals. The study reveals that time
overrun is frequent in TSF construction projects which is indicated by 86% of
respondents who indicate time overrun was experienced by their projects. 57.1% of
respondents asserted that their projects overrun cost by less than 5% of the project budget
due to time overrun factor. 25% of surveyed respondents indicated their projects overran
cost by 5% of their project budgets, 12.5% overran 10% of their TSF project budgets
whiles 3.6% overrun cost at 15% of their project budget. Generating a predictive model
for time overrun from the survey data revealed capacity, project duration and project
budget as independent variables and time overrun as the dependent variable. The mean variation between time overrun and capacity of TSF, project duration and project budget
in relation to construction projects in Ghana are equal hence the acceptance of the null
hypothesis. Twenty-one (21) factors were identified by all respondents as cost factors
that emanate as a result of poorly managed time overrun causes by industry practitioners.
The highest ranked cost effect was identified to be Claims (ranked 8.21) with a standard
deviation of 0546. Traditional contracting is ranked the most effective procurement
system for time overrun mitigation partly. The use of effective procurement systems and
the possible mitigation of time overrun causes be timeously made in order to curtail the
effects of cost incurred due to time overrun in TSF construction projects.
Description
A thesis submitted to the Department of Construction, Technology and
Management, Kwame Nkrumah University of Science and Technology, Kumasi in partial fulfilment of the requirement for the award of Master of Science in Project Management.
Keywords
An Assessment, Time overrun, Cost effects, Tailings Storage Facility (TSF), Construction Projects, Percentage Cost Escalation of TSF Projects, Ghana