A Systematic Review on Development of a Project Cost Estimation Framework:A Case Study of Nigeria

Autor: Dosumu, Babatunde, Ejohwomu, Obuks, Yunusa-Kaltungo, Akilu
Přispěvatelé: Windapo, Abimbola, Aiyetan, Ayodeji, Umeokafor, Nnedinma, Okoro, Chioma, Adediran, Abdulrauf, Mtya, Amanda
Jazyk: angličtina
Rok vydání: 2021
Zdroj: Dosumu, B, Ejohwomu, O & Yunusa-Kaltungo, A 2021, A Systematic Review on Development of a Project Cost Estimation Framework : A Case Study of Nigeria . in A Windapo, A Aiyetan, N Umeokafor, C Okoro, A Adediran & A Mtya (eds), Proceedings of the Construction Business and Project Management Conference Cape Town, South Africa, 24 – 25 June, 2021. . pp. 137 . < https://publications.waset.org/abstracts/128539/a-systematic-review-on-development-of-a-cost-estimation-framework-a-case-study-of-nigeria >
Popis: In Nigeria, there have been insufficient studies in the field of risk-related cost variability. Due to unreliable cost estimation, variations in cost, length, and quality are the direct implications. Cost estimating is difficult, mainly when dealing with uncertainties. The study aims to develop a construction project estimation framework that will aid accurate cost estimating and address cost variability issues through a systematic review. This is critical because initial estimates provided to clients can demonstrate a certain level of consistency and precision on which the client bases other planning activities. In achieving this, the theoretical concept was validated via a processual lens of a systematic literature review with cost variability and construction projects as search string within three databases: Scopus, Web of science, and EBSCO (BSP) (Business source premium), which were further studied and knowledge or research gaps identified. The review indicated that factors causing deviation between final accounts and contract sum varied from 1 to 40, including Clients change/Changes in owner's requirements, Clients brief, Type of client, Defective design and specification, thus meeting objective 1 of the study. A combination of interview and questionnaire was used to collect data and consider other objectives of peculiarities, severity, effects and ways of mitigating risk, leading to the development of a cost estimating framework that is adjudged a vital tool in risk shedding rather than risk-sharing in project risk management, which would be a panacea to cost estimation problems, leading to cost variability in the Nigerian construction industry.
Databáze: OpenAIRE