Effects of Variation on Project Cost of Selected Building Projects in Lagos State

ICCREM 2017 ◽  
2017 ◽  
Author(s):  
Oluwaseun Sunday Dosumu ◽  
Clinton O. Aigbavboa
Keyword(s):  
Project Cost ◽  
Building Projects ◽  
Lagos State

Regression Modelling for Prediction of Construction Cost and Duration

2016 ◽  
Vol 857 ◽  
pp. 195-199 ◽  
Author(s):  
Nivea Thomas ◽  
Anu V. Thomas
Keyword(s):  
Regression Models ◽  
Critical Path ◽  
Real Data ◽  
Project Managers ◽  
Statistical Regression ◽  
Statistical Process ◽  
Project Cost ◽  
Cost Overruns ◽  
Building Projects ◽  
The Relationship

Construction investments are sensitive to time and cost overruns. Delay and cost escalation are considered two threats to project success. The project objective is to develop a model to predict project cost and duration based on historical data of similar projects. Statistical regression models are developed using real data of building projects. The methodology is adopted in 3 steps: a) Data collection b) Statistical analysis using Statistical Package for Social Sciences (SPSS) software c) Interpretation of results. The real data of cost and duration of 51 building projects have been collected. In statistics, regression analysis is a statistical process for estimating the relationships among variables. It includes many techniques for modelling and analyzing several variables, when the focus is on the relationship between a dependent variable and one or more independent variables. The analysis is done using SPSS developed by IBM Corporation. The Regression models have been developed using the data collected from Noel Builders, Kakkanad, Ernakulam to predict the project cost and duration. The developed models are validated using split sample approach. The model outputs can be used by project managers in the planning phase to validate the scheduled critical path time and project budget.

scholarly journals A Appraisal of the Lagos State Building Control Agency towards Efficient Service Delivery

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
S.A Olatunji ◽  
K.E. Atoyebi ◽  
A.S. Oladipupo
Keyword(s):  
Control Agency ◽  
Project Delivery ◽  
Building Projects ◽  
Building Control ◽  
Urban And Regional Planning ◽  
Control Practice ◽  
Aesthetic Appearance ◽  
Control Regulation ◽  
Lagos State ◽  
Building Project

The study evaluated the institutional framework of building control practice, identified and examined the degrees of enforcement and compliance with the building control regulation in Lagos State with reference to the promulgation of the Urban and Regional Planning and development Law of 2010. A total of 185 questionnaires were used to elicit data from 72 firms, 33 consultants and 80 personnel of the Building Control Agency in which sixty-three one hundred and seventeen (117), (63.2%) questionnaires were accurately filled and returned. The data collected were analyzed using frequency, percentage and weighted summation. Findings revealed that the agency (LASBCA) undertakes the major role of setting the enforcement system for building projects and private parties’ participation were not yet in place. Furthermore on the level of compliance by contractors, result showed that the structural stability and aesthetic appearance of building projects received greater attention. This paper concludes that the practice of Building Control to a large extent has the prospects of enhancing the quality of building project delivery but detailed program of work should be submitted along with other necessary document before approving commencement of work on site so that every stage of work could be adequately captured in the study area.

scholarly journals A Comparative Assessment of Causes of Delay in Public and Private Building Projects in Lagos State, Nigeria

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
D.S Kadiri ◽  
A.A. Akintoye ◽  
B.O. Onabanjo
Keyword(s):  
Construction Projects ◽  
T Test ◽  
Infrastructure Development ◽  
Test Results ◽  
Public And Private ◽  
Building Projects ◽  
The Sustainable Development ◽  
Financial Difficulties ◽  
Development Agenda ◽  
Lagos State

Delay in the execution of construction projects is a major problem confronting the Nigerian construction industry. If unchecked, it will constitute a setback to the realisation of the infrastructure development component of the sustainable development agenda of the United Nations. This paper compared the causes of delay in public and private building projects in Lagos State, Nigeria with a view to enhancing project time performance. The study was conducted using a random sample of 87 Architectural firms and 88 contracting firms out of a population of 289 and 293, respectively in the study area. These represent 30% of the population of Architectural and contracting firms, in the study area. Data were retrieved from 47 Architectural and 48 contracting firms and analysed using mean score and student t-test. Results from the study indicated that delay in public building projects was mostly due to contractor’s financial difficulties with mean score (MS) of 2.84, rise in materials prices (MS = 2.80) and variations (MS = 2.72). On the other hand, client’s interference (MS = 2.92), rise in materials prices (MS = 2.83) and slow decision by clients (MS = 2.74) were the major causes of delay in private projects. T-test also revealed that the respondents were significantly different in opinion on 12 out of the 30 causes of delay in both project types in the study area.

scholarly journals Investigation of the Adoption of Building Commissioning Practices in the Installation of Building Services Items

2019 ◽  
Vol 7 (1) ◽  
pp. 81-97
Author(s):  
Akeem Bolaji Wahab ◽  
Kingsley Omaka
Keyword(s):  
Factor Analysis ◽  
State Government ◽  
Professional Training ◽  
Significant Proportion ◽  
Survey Method ◽  
Item Score ◽  
Building Stock ◽  
Building Projects ◽  
Building Commissioning ◽  
Lagos State

Abstract Of recent, the need to increase the performance of services installations in buildings has been a major point of interest amongst construction professionals through the consideration of commissioning practices required to be adopted during execution of building projects. The aim of the study is to investigate awareness of building professionals on the adoption of building commissioning practices in the installation and use of building services equipment. The study therefore examines the characteristics of building commissioning practices, examines the level of awareness and adoption of building commissioning practices amongst construction professionals in Lagos State, Nigeria, as well as investigates the factors influencing their adoption. A survey method of research was employed with questionnaire administered on construction professionals available on the list of firms of the Federation of Construction Industry (FOCI) registered with the Lagos State Government. The data collected were analysed with the use of statistical tools, such as frequency distribution, mean item score, analysis of variance and factor analysis. The study shows that amongst the characteristics of building commissioning practices, lighting services have the highest level of engagement with a mean score of 4.45, heating, ventilation and air-conditioning 4.15 while vertical transporting services have a mean score of 3.82. A significant proportion of the respondents are aware of building commissioning practices through different professional training courses and practices. The study also shows that there is relationship between the level of awareness and adoption of building commissioning practices at 95 % confidence level. The indicators in group one are found through the factor analysis to be contributing mostly to the adoption of building commissioning practices by the respondents. The study concludes that with the existing level of its awareness in the study area, efforts should be made by stakeholders to entrench building commissioning practices provisions in the country’s institutional framework/regulatory code, which covers the installation and use of service items in building stock so as to further deepen their adoption in order to enhance performance and comfort of building projects.

scholarly journals Factors Affecting Occurrence of Claims in Building Projects in Lagos State, Nigeria

2021 ◽  
Vol 25 (8) ◽  
pp. 1471-1476
Author(s):  
A.A. Ajayi ◽  
O. Babalola ◽  
A. Morakinyo ◽  
A. Anjonrin-Ohu
Keyword(s):  
Principal Component ◽  
Project Performance ◽  
Building Construction ◽  
Construction Process ◽  
Building Projects ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Project Participant ◽  
Key Stakeholders ◽  
Lagos State

The occurrence of claims prevails in all projects, making the successful completion of projects within the predetermined budget a mirage. This is recognized to have added to costs of projects and adversely affected project performance. This paper aims at investigating critical factors influencing occurrence of claims in building projects in Lagos State, Nigeria. Forty-three (43) construction project attributes affecting project performance were identified through literature and presented to the key stakeholders in the study area using questionnaire survey. Two hundred and seventy-six (276) copies of the questionnaire were randomly administered to key stakeholders involved in the building construction process. One hundred and fifty-one (151) were retrieved representing 57.61% response rate. Principal component analysis of responses to a set of 43 characteristics identified through literature review extracted four components. The results indicated important factors such as: ‘Project Participant Characteristics’, ‘Basic Project Characteristic’, ‘Procurement Characteristics’, along with ‘Complexity Characteristics’ were factors influencing the occurrence of claims. It was concluded that the construction stakeholders should effectively manage these factors in minimising claims occurrence and thereby improving building projects delivery.

Assessment of factors influencing the failure and abandonment of multi-storey building projects in Nigeria

2018 ◽  
Vol 36 (2) ◽  
pp. 210-231 ◽  
Author(s):  
Emmanuel Oluwatobi Adebisi ◽  
Stephen Okunola Ojo ◽  
Oluwaseyi Olalekan Alao
Keyword(s):  
Construction Projects ◽  
Business Failure ◽  
Primary Data ◽  
Structural Quality ◽  
Item Score ◽  
Building Projects ◽  
Content Type ◽  
Factors Influencing ◽  
Lagos State ◽  
Storey Building

PurposeThe failure and abandonment of construction projects have proven to be insurmountable problems incessantly militating against the efficient performance of the construction industry in Nigeria. The complexity, technicality and a host of other project execution issues unique to multi-storey building projects do increase their susceptibility to failure and abandonment. Thus, the purpose of this paper is to examine the factors influencing failure and abandonment of multi-storey building projects in Nigeria. This is with a view to provide inferential empirical data that could enhance successful delivery of multi-storey building projects in Nigeria.Design/methodology/approachPrimary data were used for the study. A structured questionnaire was administered on consultants and contractors’ personnel within Lagos State, Nigeria. A total of 180 copies of the questionnaire were administered ,and 134 copies which represent a combined response rate of 74.4 per cent were retrieved. The data were analysed using frequency distribution and percentages, Mean item score and factor analysis.FindingsThe factors most significant to the failure and abandonment of multi-storey building projects are inadequate funding by the client, improper planning at the pre-construction phase, structural failure in multi-storey building during construction, bankruptcy/business failure of the contractor, improper scheduling of the building project activities and failure to engage qualified professionals with technical expertise and experience. The rated factors clustered under human resources capability, planning and structural quality, contractor selection and variation, insecurity and variation, and force majeure and political risk.Research limitations/implicationsThe study was limited to multi-storey building projects in Lagos State, Nigeria. Further studies could focus on specific resuscitation strategies for abandoned multi-storey building projects.Practical implicationsThe study provided implications for effective project and contract management of multi-storey building projects which is very paramount to improve the delivery of complex, technical- and capital-intensive building projects in Nigeria.Originality/valueThe study provides specific implications for the management of multi-storey building projects, thereby enhancing the delivery of building projects.

‘Grey Dawn’ in the British Pacific: Race, Security and Colonial Sovereignty on the Eve of World War I

2016 ◽  
Vol 9 (1) ◽  
pp. 32-54 ◽  
Author(s):  
Jesse Tumblin
Keyword(s):  
Twentieth Century ◽  
World War I ◽  
Military Force ◽  
Royal Navy ◽  
World War ◽  
Building Projects ◽  
Cooperative Security ◽  
Strategic Defense ◽  
Racial Discourses ◽  
The Way

This article examines the way a group of colonies on the far reaches of British power – Australia, New Zealand, Canada, and India, dealt with the imperatives of their own security in the early twentieth century. Each of these evolved into Dominion status and then to sovereign statehood (India lastly and most thoroughly) over the first half of the twentieth century, and their sovereignties evolved amidst a number of related and often countervailing problems of self-defence and cooperative security strategy within the British Empire. The article examines how security – the abstracted political goods of military force – worked alongside race in the greater Pacific to build colonial sovereignties before the First World War. Its first section examines the internal-domestic dimension of sovereignty and its need to secure territory through the issue of imperial naval subsidies. A number of colonies paid subsidies to Britain to support the Royal Navy and thus to contribute in financial terms to their strategic defense. These subsidies provoked increasing opposition after the turn of the twentieth century, and the article exlpores why colonial actors of various types thought financial subsidies threatened their sovereignties in important ways. The second section of the article examines the external-diplomatic dimension of sovereignty by looking at the way colonial actors responded to the Anglo-Japanese Alliance. I argue that colonial actors deployed security as a logic that allowed them to pursue their own bids for sovereignty and autonomy, leverage racial discourses that shaped state-building projects, and ultimately to attempt to nudge the focus of the British Empire's grand strategy away from Europe and into Asia.

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