Publications

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2021
Dada, J, Ojo G.  2021.  AN EVALUATION OF THE USE OF PROBABILITY ANALYSIS IN CONSTRUCTION RISK ASSESSMENT, 2021/09/08. 1:8-16. Abstract

This paper evaluated the use and application of probability analysis in the assessment of construction risk. It has been a usual practice to estimate a single-price value for the cost of a project and a certain percentage allowance to cater for risk. A more realistic approach is to adopt the policy that the single point forecast is the most likely price with a range between the lowest price and the highest price. To demonstrate this, a typical project was used as a case study. The contract sum together with its breakdown into respective trade variables were collected. The data collected were analysed using probability analysis. The analysis and result presented provides guide in arriving at this range of values. It is concluded that the successful application of this technique into the estimation of construction project's cost will help in the management of construction risk. Introduction All human endeavours involve risk. The success or failure of any venture depends on how we deal with it. Construction industry is not an exception. This industry has had poor reputation for coping with risk with many projects failing to meet deadlines and cost targets. The participants, public and others have suffered as a result (Thompson et ai, 1992). Sources of risk can be in terms of payment, security deposit and retention, time of commencement and completion, variation, delay and cost of delay and liquidated damages. Size can be one of the major causes of risk; so. can changes in political or commercial planning. Other factors carrying risk with them include the complexity of the project, location, speed of construction and familiarity with the type of procurement system. These risks need to be properly assessed, analysed and managed for efficient operation of the industry. Norris et at (1992) and Thompson et at (1992) identified the most useful and main techniques of risk analysis tc be sensitivity and probability analyses. Chapman (1990), rated probability analysis over sensitivity analysis in that the former overcomes many of the limitations of the latter by specifying a probability distribution for each risk and then considering the effect of the risks in combination. This paper describes the concepts of probability analysis and its application in the management of construction risk. This is Illustrated by a case study.

2019
Dada, JO, Babatunde SO, Adeleye RO.  2019.  Assessment of academic stress and coping strategies among built environment undergraduate students in Nigerian higher education. Journal of Applied Research in Higher Education. : Emerald Publishing Limited Abstract
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Osunsanwo, HF, Dada JO.  2019.  Evaluating quantity surveying firms’ performance: An application of balanced scorecard technique. International Journal of Productivity and Performance Management. : Emerald Publishing Limited Abstract
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Oyewole, EO, Dada JO.  2019.  Training gaps in the adoption of building information modelling by Nigerian construction professionals. Built Environment Project and Asset Management. : Emerald Publishing Limited Abstract
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2018
Dada, JO.  2018.  A Career Path Framework for Quantity Surveyors in Nigeria Private Practice. Journal of Construction Business and Management. 2:15–23., Number 2 Abstract
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Dada, JO, Jagboro GO.  2018.  A framework for assessing quantity surveyors’ competence. Benchmarking: An International Journal. : Emerald Publishing Limited Abstract
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2017
Dada, JO.  2017.  An appraisal of paradigm shifts required of competence of the Nigerian quantity surveyors. Engineering, Construction and Architectural Management. : Emerald Publishing Limited Abstract
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Fawale, TS, Dada JO.  2017.  Impact of Contractors’ Bidding Strategies on Bid Success in the Nigeria Construction Industry. International Journal of Built Environment and Sustainability. 4, Number 1 Abstract
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2016
Dada, JO, Musa NA.  2016.  Key factors affecting the competence of quantity surveyors: Evidence from construction industry stakeholders in Nigeria. Journal of Engineering, Design and Technology. : Emerald Group Publishing Limited Abstract
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2015
Aduloju, TO, Dada JO.  2015.  Mode of Business Agreement with the Quantity Surveyor in the Informal Sector Economy of Nigeria: The Sustainability of Professional Standards. Journal of Civil & Environmental Engineering. 5:1., Number 4: OMICS Publishing Group Abstract
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2014
Dada, JO.  2014.  A principal component analysis of skills and competencies required of quantity surveyors: Nigerian perspective. Organization, technology & management in construction: an international journal. 6:0–0., Number 2: Građevinski fakultet Sveučilišta u Zagrebu Abstract
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Dada, JO, KADIRI DS, ALAO OO.  2014.  Redefining cost control framework for construction budgetary management. Journal of Environmental Design and Management. 6:112–121., Number 1&2 Abstract
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2012
Dada, JO, Jagboro GO.  2012.  Core skills requirement and competencies expected of quantity surveyors: perspectives from quantity surveyors, allied professionals and clients in Nigeria. Australasian Journal of Construction Economics and Building, The. 12:78–90., Number 4 Abstract
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2011
Dada, JO.  2011.  Factors affecting women enrolment in construction education in Nigeria. WEST AFRICA BUILT ENVIRONMENT RESEARCH (WABER) CONFERENCE 19-21 July 2011 Accra, Ghana. :453. Abstract
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2007
Dada, JO, Jagboro GO.  2007.  An evaluation of the impact of risk on project cost overrun in the Nigerian construction industry. Journal of Financial Management of Property and Construction. : Emerald Group Publishing Limited Abstract
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2004
ODEYINKA, HENRYA, OLADAPO ADEA, Dada JO.  2004.  An assessment of risk in construction in the Nigerian construction industry. Globalisation and Construction. :359. Abstract
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