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1 – 10 of 19Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
People will continue to migrate from rural to urban areas. This always results in congestion in the civilised part where there is contention for the resources available. Policies…
Abstract
People will continue to migrate from rural to urban areas. This always results in congestion in the civilised part where there is contention for the resources available. Policies have to be made and implemented in order to counter scarcity and redundancy as most urban cities tend to halt in growth when population is beyond controllable size. Smart cities come into the frame by alleviating the present condition of the places to that which is convenient for everybody. Quality of life, meanings of smart cities, quality of life of smart cities citizens are the priorities when implementing smart city concepts into sustainable development.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
This first chapter of this book tends to bring into understanding the various definitions concepts, evolutions, characteristics and many more on smart cities. These are further…
Abstract
This first chapter of this book tends to bring into understanding the various definitions concepts, evolutions, characteristics and many more on smart cities. These are further explained across the other chapters of the book as to the roles and functionalities of smart cities in this modern world. This chapter starts with an introductory part that briefly describes what cities hold and the idea of inculcating smartness into it. Furthermore, various definitions were explicitly defined across other sections of the introduction. The objective of this book relates the reason and solution the book aims to offer into the construction industry as a system that is not only functional but also sustainable across various professionals of the construction industry. This chapter ends with concluding part that describes the totality of what have been discussed in the course of the chapter. The research book also contains reference for further reading.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
Smart cities over the years is fast growing on people. Citizens and stakeholders that were defiant to its adoption are beginning to see the reasons for it. Due to one reason or…
Abstract
Smart cities over the years is fast growing on people. Citizens and stakeholders that were defiant to its adoption are beginning to see the reasons for it. Due to one reason or the other, many of the stakeholders and the citizens were reluctant in seeing the vision in the smart city system. Some of these factors are expressed in the drivers and challenges faced in enhancing from a city to smart city. Along with these, measures and benefits that relate with smart city has helped in social and general awareness of what it represents and what stands to be gained if fully adopted. And this has helped in overall information available on smart city. The concluding part of the chapter gives a summary of the importance in addressing these drivers.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
Oluwole Alfred Olatunji, Olaniyi Isaac Aje and Sina Makanjuola
The decision to bid or not to bid for new projects determines contractors’ propensity for business success or failure. The purpose of this paper is to investigate the factors that…
Abstract
Purpose
The decision to bid or not to bid for new projects determines contractors’ propensity for business success or failure. The purpose of this paper is to investigate the factors that affect the decision of indigenous construction contractors to bid or not to bid in Nigeria.
Design/methodology/approach
Analysis was conducted on data from questionnaires received from 64 engineering management employees of leading construction companies which are members of Nigeria’s Federation of Construction Industry. The study identified 41 significant decision factors often considered by Nigerian indigenous contractors before the bid. Mean item scores were obtained for each of the factors. Principal component analysis was used to point out the most significant decision factors.
Findings
Results revealed significant orthogonal relationships between the factors. Only 11 of the 41 factors are statistically significant to influence contractors’ decision to bid or not to bid. Most of the significant items were amongst the least rated items by the participants. The post hoc decision factors include consultant’s interpretation of project specifications, previous relationship between the intending bidder and client, availability of other projects at the time of bidding, technological complexity of the project under consideration and prequalification requirements. Others include the propensity for resource price fluctuation, business capacity of partners, amount of own work vs subcontracted work, required rate of return on investment and difficulty in obtaining finance.
Originality/value
The practical implication of these findings are as follows: the orthogonal relationship between the decision factors implies non-linear relationship between the factors and actual decision to bid or not to bid, and that bid success is often not predictable by bid behaviour; many of the bid decision factors rated highest by indigenous contractors seldom impact the contractors’ actual bid decisions; local and international players can adopt the significant decision factors elicited in this study for managing their structures for inter-organizational partnerships.
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Olaniyi Isaac Aje, Oluwole Alfred Olatunji and Olanrewaju Augustine Olalusi
Evidence suggests project owners could use advance payments to prevent cost escalations. The purpose of this paper is to elicit the relationships between causations of overruns…
Abstract
Purpose
Evidence suggests project owners could use advance payments to prevent cost escalations. The purpose of this paper is to elicit the relationships between causations of overruns when advance payments are issued to contractors.
Design/methodology/approach
In total, 97 responses from a questionnaire survey were analysed. Additional data on 51 projects, completed between 2000 and 2014 under different advance payments regimes, were also obtained and analysed.
Findings
Project owners issue advance payments to contractors so as to avoid delays. However, statistical correlation between advance payments and overrun causations are not significant. Although cost overruns were higher in large projects than in small projects, schedule overruns were more in small projects than in large projects. Schedule overruns were caused most significantly by contractors’ site management approaches. Design and documentation issues were identified as the most prevalent cause of cost overruns. Regression models are proposed to elicit overruns when advance payments are issued.
Practical implications
Extant debates on project overruns in construction and project management literature are robust. Nonetheless, the study elicits considerable knowledge gaps regarding the roles of advance payments in fostering project performance.
Originality/value
This pioneering work indexes the relationship between advance payment and project overruns in Nigeria. It is also the first attempt to document the probability distribution of overruns in Nigeria, particularly under specific advance payment regimes.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
The theories and models of smart city make up the systemic approach that governs its readiness. This contains the in depth analysis of the concepts of the smart city as it relates…
Abstract
The theories and models of smart city make up the systemic approach that governs its readiness. This contains the in depth analysis of the concepts of the smart city as it relates to the environment as wells as the energy present. Several theories are modelled into the smart city system to guide its implementation and consideration among the construction professionals in the constitution industry. Subsequently, frameworks are not neglected in terms of their relationship between the outcome of the theories and models propounded and conceptual integration in human, technology and institution. Inferences are made from these theories and models, and thus decision-making are dependent on the visibility envisaged.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
In defining smart city and its effects on the citizens, the ideas and generalisation of the team members that makes up the smart city team must be thoroughly considered. It is one…
Abstract
In defining smart city and its effects on the citizens, the ideas and generalisation of the team members that makes up the smart city team must be thoroughly considered. It is one thing to have the concepts and processes on ground on smart city, it is another to have qualified team members that can deliver such city within a targeted standard. Stakeholders, construction professionals, citizens, concerned individuals among all make up the smart city team members. These members can also be spread across disciplines in order to facilitate effectiveness in every activity designed. Activities such as dissecting characteristics, control and management of smart city are controlled by these team members as they seek for maximisation of output from the resources available.
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Ayodeji Emmanuel Oke, Seyi Segun Stephen, Clinton Ohis Aigbavboa, Deji Rufus Ogunsemi and Isaac Olaniyi Aje
In the latest years of the twentieth century, information and communication technologies (ICT) and urbanisation are two major issues that are in egression. The progress in…
Abstract
In the latest years of the twentieth century, information and communication technologies (ICT) and urbanisation are two major issues that are in egression. The progress in technology during the 1980s and 1990s majorly improved well-being in the urban centres. This encouraged development of urban centres, leading to the migration from rural areas to cities. This is with the motive that cities offer tonnes of opportunities in areas, such as social life, job, education, etc. Cities are the major pillars of economic and human activity. Furthermore, the demand for natural resources, energy and general resources for infrastructural developments are controlled by the nature and type of city. Therefore, it is expedient that urban centres strive to promote the sustainability of the environment, social unity and the standard of living of its inhabitants through effective support of economic competition and management of their developments. Therefore, in an effort to safeguard the health of the people and the condition of the earth from been ruined, the concept of ‘Smart City’ came into existence. In addition with the introduction of new technological concepts (majorly ICTs, the ‘Smart City’ concept has egresses as the pathway to accomplish more sustainable and efficient cities. This implies that such cities should not only accommodate the people with minimum health hazard but should be socially inclusive and economically beneficial to concerned stakeholders.
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Bamidele Temitope Arijeloye, Isaac Olaniyi Aje and Ayodeji Emmanuel Oke
The purpose of the study is to elicit risk factors that are peculiar to public-private partnership (PPP)-procured mass housing in Nigeria from the expert perspectives in ensuring…
Abstract
Purpose
The purpose of the study is to elicit risk factors that are peculiar to public-private partnership (PPP)-procured mass housing in Nigeria from the expert perspectives in ensuring the success of the scheme thereby reducing housing deficit in the country.
Design/methodology/approach
The risk inherent in construction projects had been established through literature in general. The risk in PPP projects is emerging because of the recent acceptance of the procurement option by governments all over the globe. The Nigerian Government has also adopted the procurement option in bridging the housing deficit in the country. This study, therefore, conducts a Delphi survey on the probability of risk occurrence peculiar to PPP mass housing projects (MHPs) in Nigeria. Pragmatic research approach through the mixed method of both quantitative and qualitative methods was adopted for this study. The quantitative method adopts the administration of questionnaires through the Delphi survey, whereas the qualitative method used interviews with the respondents. A two-stage Delphi questionnaire was administered to construction practitioners that cut across academics, the public and the private sectors by adopting convenient sampling techniques and following the Delphi principles and procedures. A total of 63 risk factors were submitted to the expert to rank on a Likert scale of 7 and any risk factors that the mean item score (MIS) falls below the grading scale of the five-point benchmark is deemed not necessary a risk factor associated with PPP MHPs and thereby expunged from the second round of the Delphi Survey. The interview was subsequently applied to the respondents to substantiate the risk factors that are peculiar to PPP-procured mass housing in the study area.
Findings
The findings show that risk factors such as maintenance frequent than expected, life of facility shorter than anticipated and maintenance cost higher than expected fall below 5.0 benchmark with MIS of 4.64 and 4.55 indicating that the risk factors are not peculiar to PPP mass housing in Nigeria.
Research limitations/implications
The implication for practise of this research is that these risk factors provide the PPP stakeholders with the comprehensive checklists that can aid in developing PPP risk assessment guidelines in the sector though both partners should be aware of the dynamic nature of risk because new ones might be emerging.
Originality/value
The authors hereby declare that the research findings are a product of a thorough research conducted in the study area and have not to be submitted or published by another person or publisher and due acknowledgement was made where necessary.
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