Improving the efficacy of cost contingency plans for construction projects in South Africa

O. Akinradewo, L. Ngwenya, C. Aigbavboa, W. Thwala, L. Mphela

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


The use of cost contingency in construction projects provides a lucid and lively recognition of upcoming/impending challenges of cost overrun in delivering the construction project thereby giving room for project delivery to cost. The aim of this study is to evaluate how the efficacy of cost contingency plans for construction projects can be improved. This study adopted the use of a quantitative research approach with the use of questionnaire structured to capture the perceived measures of improving the efficacy of cost contingency plans for construction projects. The study harnessed information from Construction Managers/Project Managers, Contract Managers and Quantity Surveyors in Gauteng Province, South Africa. Data retrieved was analysed using mean item score, standard deviation and Kruskal-Wallis H-test. This study was limited to Gauteng province in South Africa due to time and cost constraint. The findings showed that the three most effective measures of the efficacy of cost contingencies in construction projects are assessing risk possibilities, assessing risk impact, and identifying project risk and uncertainties. The study concluded that cost contingency plan can be improved when risks are adequately assessed together with their impact on the construction project. By recommendation, identification; definition; and evaluation of risks is a paramount activity which project professionals must embark upon before a construction project can commence.

Original languageEnglish
Article number012030
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 13 Nov 2019
Event1st International Conference on Sustainable Infrastructural Development, ICSID 2019 - Ota, Nigeria
Duration: 24 Jun 201928 Jun 2019


  • Contingency
  • Cost
  • Project planning
  • Risks
  • Uncertainties

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering


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