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Purpose The purpose of this paper is to introduce the use of critical success factors (CSFs) of stakeholder management as a possible solution to reduce disputes experienced because of legal and regulatory issues in public–private partnership (PPP) projects. Design/methodology/approach This paper’s epistemological positioning adopted positivism and deductive reasoning to investigate the dispute phenomena on PPP projects. A survey strategy was adopted using a structured questionnaire and closed-ended Likert scales to collate primary data. Questionnaires were distributed to South African construction professionals using both purposive and snowballing non-probability sampling techniques. Data was analysed using summary statistical analysis of the CSFs identified from literature. Findings This study revealed that among the 19 CSFs identified, five factors were highlighted that could contribute to the alleviation of disputes between stakeholders in PPP projects, namely, adequate project planning and control; effective leadership; appropriate strategies for the management of stakeholders; confirmation of clear goals and objectives of the project; and effective communication. Originality/value The strength of this study lies in the evaluation and use of CSFs of stakeholder management as a possible solution to minimise or even avoid disputes as a result of legal and regulatory issues in PPP projects. By integrating the CSFs, the legal and contractual misconceptions of the PPP initiative are clarified. Such work represents a novel contribution to procurement practice in South Africa and maybe to other countries internationally who are grappling with similar issues.

Purpose The purpose of this paper is to investigate the awareness level of smart building technologies (SBTs) among construction professionals in developing countries such as Ghana, and identify the key factors that have the significant capability of influencing the awareness level significantly. Design/methodology/approach Data were collected through questionnaire survey from 227 construction design team and project managers in the Ghanaian construction industry. Descriptive analysis and multivariate analysis using multiple regression were used to analyze the data. Findings Averagely low level of SBTs awareness was observed to exist among professionals in the construction industry of Ghana. The study further revealed “training programs” by organizations and “individual knowledge” as the key factors capable of significantly influencing the level of SBTs awareness in the construction industry of developing countries, particularly Ghana. Practical implications This paper identified training programs by organizations and individual knowledge as the two key factors having significant capability of influencing the SBTs awareness in the construction industry of developing countries such Ghana. The two factors can be incorporated in policymaking process via considerations to help create SBTs awareness, such as encouragement of continuous professional development toward smart building concept in relation to construction sustainability. Originality/value This study conceptualizes from a systematic professional perspective and provides empirical evidence on the key significant factors capable of influencing the awareness of SBTs in the developing countries such as Ghana.

Purpose The construction industry is an enabler of economic growth in developing countries, but its performance is governed by the professional behaviour of construction professionals. Unethical behaviour (UB) breaches codes of practice and undermines economic performance hence, ubiquitous academic attention has been given to understanding this phenomenon. This paper aims to contribute to the ensuing discourse by reporting upon the most critical ethical behaviours (EBs and UBs) of professionals in the Ghanaian construction industry (GCI). Design/methodology/approach The study compounded identified factors into a closed-ended questionnaire in a quantitative research strategy. Data analysis was conducted using the relative importance index and one sample t-test. To measure the reliability of the scale, Cronbach’s alpha was used, which indicated that all measured items were reliable for further analysis. Findings The study confirmed that professionals within the GCI are aware of the existence of UBs and revealed that the most prevalent ethical conducts exhibited, namely, level of accuracy, accountability, honesty, reliability, fairness and respect for colleagues. Common unethical conducts exhibited included: favouritism, bribery and corruption, professional negligence, falsification, fraud and overbilling. Research limitations/implications The study reported on the dominant ethical conduct among built environment professionals. The claims put forward in the analysis are, thus, affected by Ghana’s social, economic and political environments, which could restrict the generalization of the findings. Practical implications Incipient findings presented from this research will guide stakeholders to develop and device strategies that will aid alleviate persistent ethical issues within the built environment. Social implications The study highlights individuals’ perspectives on ethical issues persistent in the built environment. The findings suggest individuals adhere to ethical practices in a project environment by the evidence presented. Originality/value This pioneering study is a novel assessment on EBs and UBs of built environment professionals in the GCI. The study supplementary adds value to the literature on ethical and unethical practices. By identifying these practices, construction firms have a competitive edge in combating UB and promoting EB among built environment professionals in the GCI.

Purpose- This paper is anchored in a premise of a universal call to action by all United Nations member states in 2015 to end poverty, protect the planet and ensure that all people enjoy peace and prosperity by 2030 within the blueprint of the sustainable development goals. the purpose of this research is to explore exploration of challenges, opportunities and strategies for mainstreaming sustainable development goals in Ghana’s energy sector within the framework of public-private partnerships Design/methodology/approach- Literature review was carried out to explore concepts, theories, and frameworks for initiating Public-Private-Partnerships. Best local and international practices in the implementation of PPP projects; challenges and opportunities in the implementation of PPP projects, strategies for mainstreaming the sustainable development goals in Ghana’s energy sector, and assess business action in the implementation of the sustainable development goals in Ghana’s energy sector. The study is situated within the social constructionist philosophical tradition. The qualitative research strategy was adopted as the main methodological choice. Interview guides were used to collect data from respondents in the Accra metropolis. Eighteen (18) questionnaires were distributed and ten (10) retrieved out of the number representing a response rate of 56 percent. A thematic analysis technique was adopted to analyze the data. Findings- The lack of a PPP policy and law in Ghana, issues of conflict of interest in PPP projects, excessive government control over projects, cumbersome licensing and legal regime, and the general economic stability of the country were the most significant challenges identified to PPPs. However, opportunities identified were technology transfer, efficiency gains, and mobilization of additional resources for development on the government side whereas the opportunities for the private sector lie in creating new niches for themselves, becoming market leaders, and enhancing their brand reputation as well as profits. Awareness creation and education for companies, making business models inclusive, linking CSR with SDGs, exploring business opportunities in SDGs such as carbon trading, etc., aligning national policies with SDGs, establishing a sustainability unit in energy companies and forming effective partnerships with relevant bodies were the strategies proposed for mainstreaming the SDGs in Ghana’s energy sector. Research limitation- It was established from this study that indeed PPPs have a major role to play in unleashing all available forces and prospects towards achieving the SDGs. The findings of this research will serve as a guide to policymakers, the private sector, and development partners helping them identify the most effective strategies and avenues for implementing the SDGs especially in the context of the energy sector. This paper is constrained to the energy industry in Ghana. It provides a theory-based direction on how companies in the energy sector can contribute to social and economic interventions through a framework of PPP framework within the SGDs. Future research may explore how companies in other sectors may contribute to the sustainability discourse. Practical Implication- This will ultimately lead to additional funding to support government efforts in the implementation of SDGs, honing of sustainable (inclusive) business models, creating an enabling environment for PPPs towards inclusive growth and national development leaving no one behind. It recommended that there should be a national policy and law on PPPs and the private sector should be incentivized to engage government in PPPs implementation for the SDGs. Theoretically, this research contributes to the policy analysis discourse and scaling-up literature on the SDGs. Originality/value- This research explores the challenges associated with mainstreaming the SGDs in the energy sector from a public-private business perspective. It also offers a new policy, economic, and legal regulatory framework that contributes to emerging trends. The outcome of the analyses advocates for clear business strategies for implementation of the SDG apart from corporate social responsibilities (CSR).

Purpose The advances in green city growth are widely discussed in extant literature. The benefits of green cities to urban development in recent discussions of sustainability and sustainable development are well documented and cannot be overemphasised. Although a growing study on green building development in developing countries has been advanced in literature, there is a paucity of studies that explore green cities in developing countries. Moreover, evidence of studies that have focussed on green cities development in Ghana is lacking. Because of this identified knowledge gap, the purpose of this study is to establish the indicators/attributes for measuring the level of greenness of cities in developing countries. Design/methodology/approach A comprehensive literature review was conducted to identify the indicators/attributes for measuring the level of greenness of cities in developing countries. This study has adopted the pragmatism as its undergirding research philosophy and the deductive research approach. In terms of methodological choice, quantitative research strategy was used to collect data from experts in sustainable urban development. The primary data retrieved from this study was analysed using descriptive statistics, relative importance index and one-sample t-test. The reliability and validity of this study were measured with the Cronbach’s alpha test. Findings This study established eight indicators for measuring green city development: air quality, water, sanitation, land use, health and safety, transportation, energy and building and construction. It was discovered that the development of green cities should enhance air quality, improve water production and supply, improve management in sanitation, promote mixed and integrative land use, maintain the health and safety of city dwellers, reduce the demand for transportation and formalise public transport, adopt renewable and efficient energy technologies and promote sustainable construction and green buildings. These indicators are key to policymaking and implementation of green cities development. Research limitations/implications This study focusses primarily on Ghana; however, the findings of this study do not limit the generalisability, as it can be used as an example for other developing countries. Practical implications Theoretically, this study adopted quantitative indicators that are reproducible in another geographical context. This study contributively adds to the discourse on sustainability, especially in Ghana, and can be a source of reference to motivate others to conduct further research in related areas. The outcomes of this study will help the local government, policymakers, city stakeholders and industry expertise to gain insights of the overall indicators that underpin green city development. Originality/value This paper attempts to posit in literature the foremost appraisal of green city indicators adaptive in Ghana, which could motivate other developing countries to develop their own green cities.

Purpose Conditions of inadequate and asymmetric information when an agent is hired by a principal have resulted in the problems of moral hazard and adverse selection (MHAS) in public–private partnership (PPP) construction projects. The purpose of this study is to explore strategies to reduce MHAS in PPP construction projects. Design/methodology/approach Questionnaires were used to elicit responses from respondents. Mean score ranking was used to rank these strategies while reliability analysis was conducted using Cronbach’s alpha coefficient and level of agreement tested using Kendall’s concordance. Factor analysis grouped the strategies into eight components. Findings From the mean score ranking, monitoring; transfer of risks; screening; managing of construction risks; and increased incentives to control costs were the most significant strategies. The eight components were transparent process and contract, incentives and monitoring, screening and technical assistance, unbundling and benchmarking, funding and small liabilities, information clarification and signaling, risk and contract management and cooperation and finance factors. Practical implications The findings of this study have identified the most significant strategies to reduce MHAS on PPP construction projects to serve as a guide to PPP practitioners in reducing MHAS. Originality/value The output of this research contributes to the checklist of strategies that reduce PPP project failures arising from MHAS and contributes to the development of the agency theory.

Purpose Housing completions in the UK have fallen to 125,000 annually, while government targets have risen to 300,000. This dramatic shortfall raises concerns as to whether current traditional construction approaches remain appropriate. This study aims to compare the traditional approach with modular construction, with a view to assessing whether a shift in construction systems offers the potential to alleviate the UK's domestic housing crisis. Design/methodology/approach A comprehensive interpretivist review of the available relevant literature is undertaken on construction methods within the UK; advantages and disadvantages. A bibliometric analysis is conducted to extract trends and findings relevant to the comparison at hand. The database is Web of Science; the analysis software is the VOS viewer. Findings The research illustrates that the UK housing market is in a state of crisis. A toxic combination of a rising UK population combined falling rates of housing delivery has resulted in an ever-widening housing supply gap. The construction industry’s capacity to meet this observed dearth in supply is further exacerbated by a number of chronic factors such as: falling participation in the construction sector workforce; lowering skill levels; reducing profitability; time to delivery pressures; and cost blow-outs. Originality/value While much information on the various construction methods are available, including comparative material, this study is the first to assemble the various comparative parameters regarding traditional and modular UK residential construction in one place. Thus, this study provides a definitive assessment of the relative advantages and disadvantages of these forms of construction.

Purpose The construction industry faces three emergent developments that in all likelihood will transform the industry into the future. First, engineering project networks (EPNs), in which teams collaborate on projects remotely in time and space, are transforming global construction practices. Second, as a major consumer of resources and significant producer of green-house gases, construction is under pressure to reduce its carbon footprint. Third, the construction industry presents as one of the least socially sustainable work environments, with high job dissatisfaction, skewed work–life balance and over representation of depressive and mental disorders. It is incumbent on the industry to reconcile these issues. Specifically, what scope is there to shape the evolution of EPNs towards a configuration that both promotes sustainability generally, and enhances quality of work-life issues, while at the same time continuing to apprehend the economic dividends for which it is adopted? As salient as this question is, it has not been broached in the literature. Therefore, this study aims to survey the extent to which EPNs align with the sustainability agenda, more broadly, and that of employee work-place satisfaction, more specifically. Design/methodology/approach A literature review of current knowledge of these concerns is explored and a summative assessment presented. Findings To the best of the authors’ knowledge, as the first in its kind, the study brings to light that EPNs go a long way towards facilitating economic objectives, part way towards realising ecological and sociological objectives but make hardly any impact on improving employee work satisfaction. Originality/value This paper examines an entirely novel area that has not been studied yet. Future research should take up this finding to determine how EPNs may be further adapted to accommodate these wider necessary objectives.

PurposeThe purpose of this study is to investigate the insurable risks that impacted the operations on complex construction projects in developing countries using Ghana as a case study.Design/methodology/approachIn this study, structured questionnaires were used to collect relevant information from the top management of construction and insurance firms in Ghana, comprising 50 industry professionals. The study adopted theχ2and independent samples’ttest to interpret the responses from participants.FindingsThe study revealed the major risks that severely impacted the operations on complex construction projects, including strikes and labour disputes, long waiting time for approval of test samples, damages to property during construction, delay in payment to contractor for work done, poor construction method, pressure to deliver project on an accelerated schedule, labour shortage, permits delayed or take longer than expected, inaccurate materials estimating, change in weather pattern, low productivity of subcontractors and inadequate contractor experience.Practical implicationsThe study is expected to contribute to increase in the awareness of the insurable risks and policies that project participants are exposed to, which will serve as a decision-making tool for contract formation.Originality/valueThis study assists in managing construction and insurance firms to note the major risk in managing a complex construction project. In addition to knowing the major risks identified, the study investigates the insurable risk by managing both construction and insurance firms.

Purpose Efficient decision-making must be reinvigorated to make a good decision towards retirement by construction workers. In developing countries such as Ghana, researchers conducted investigations into the effects of investing in retirement decision-making and planning, but none has considered to examine and identify the factors/determinants influencing efficient decision-making by construction workers towards retirement. This study aims to examine and identify the determinants/factors that affect the retirement decision-making of construction workers in developing countries such as Ghana. Design/methodology/approach This study used primary data collected from workers of four construction companies in Ghana. The sampling technique adopted for the study was a purposive sample approach, with a survey questionnaire as a collection instrument. Means score was adopted to reveal the major determinant/factor prioritized by the respondents while binary logistic regression was used to examine and identify the effect of the retirement determinants on the retirement decision of construction workers. Findings The findings established the main significant determinants impacting retirement decision, namely, “financial condition,” “homeownership,” “age” and “family issues.” Among the determinants, “financial condition” was revealed as the major determinant of retirement decision-making in the construction industry of developing countries, which is an economic condition by which the workers can easily secure credit. Practical implications Practically, the outcome of this study serves as a base for policymakers and practitioners in making decisions concerning the retirement of workers, especially construction workers. This study also serves to provide lesson for other classifications of workers aside from the construction workers in Ghana and other developing countries. Originality/value This study contributes to knowledge by filling in the lacuna in research by examining and identifying the determinants/factors that impact the efficient decision-making by construction workers in developing countries towards retirement.

Purpose A comprehensive literature review of performance management within the Dutch steel processing industry is presented. The purpose of this paper is to analyse the motives for companies to become excellent performers in their field of expertise. These internal and external motives (refined by quantitative analysis of bibliographic data) sought to reveal the common factors that impact company performance. Design/methodology/approach Inductive reasoning was adopted using an interpretivist philosophical stance to generate new theoretical insight. A mixed-methods analysis of pertinent extant literature afforded greater synthesis of the research problem domain and generated more valid and reliable findings. The software visualisation of similarities viewer was used to conduct a qualitative bibliographic analysis of extant literature to yield greater clarification on the phenomena under investigation. Findings Four thematic groups of past research endeavours emerged from the analysis and were assigned appropriate nomenclature, namely: industry internal motives; industry external motives; excellent performer and incremental working method. To further expand upon the continuous improvement process (CIP – embodied within performance management), the paper describes the virtuous cycle of improvement, which consists of the consecutive steps of “planning”, “doing”, “checking” and ultimately of “acting” accordingly to the previous steps. It can be concluded that a high-performing company acts according to its mission, plans in line with the vision do as defined in the strategy and checks by reflection. Originality/value This unique study provides invaluable insight into the performance management of Dutch steel processing companies. Although the research context was narrowly defined, the findings presented are equally applicable to clients, contractors and sub-contractors active in other sectors of the construction industry. The research concludes by prescribing factors of mitigation strategies to support chief executive officers to focus on the optimum distribution of their scarce resources.

Purpose Foreign direct investment (FDI) flows for infrastructure development have grown in volume to become more widely dispersed among home (outward investor) and host (recipient) countries. This paper aims to explore the short-run causal relationship between FDI and infrastructure development in the developing country of Ghana. Design/methodology/approach A two-stage least squares estimation method was adopted where FDI was endogenized, and all variables were in constant prices. Stationarity tests were performed on the annualized log difference of variables using augmented Dickey–Fuller test (ADF). Findings Results reveal a positive and significant relationship between FDI and infrastructure but a negative and significant relationship between FDI and GDP and FDI and openness. GDP growth also has a long-run negative relationship with FDI inflows. Originality/value The paper’s contribution to knowledge is two-fold. First, it examines the short run effect of FDI upon the Ghanaian economy and how market shocks to FDI and infrastructure development can be ameliorated. Second, it illustrates that government policymakers should prioritize development that requires FDI and ensure that the local market is not excessively open to foreign exploitation. Future work is required to further investigate international capital flow and its impact upon other developing nations.

PurposeThis paper aims to evaluate Nigerian contractors’ perceptions regarding the effects of positive and negative cash flow during construction projects, with a view to establishing effective strategies for cash flow management.Design/methodology/approachA desktop-based literature review is used to develop a cross-sectional questionnaire survey which uses Likert items to elicit responses from construction professionals on: the reasons for cash flow problems; the impacts of negative and positive cash flow; and the potential solutions for improving cash flow on construction projects.FindingsThe study finds that delay in payments, difficulty in obtaining financial aid and inadequate budgetary control are the causes of cash flow problems during construction projects. Cumulatively, these issues result in project delays, reduced profit margins and in the worst scenarios, abandoned projects.Originality/valueThere has been limited research into the effects of positive and negative cash flows on construction projects in Nigeria and indeed, the wider geographical location of West Africa. This study addresses this observed dearth and consequently advances methods and solutions to deal with the problem of poor cash flow management in the Nigerian construction industry.

PurposeConstruction manufacturers predominantly rely upon antiquated manual design and production processes and procedures because they lack technical skills needed to automate working practices. This paper aims to automate manufacturing processes by optimising the utilisation of BIM digital objects (BDO) via the development of a conceptual model. Concomitant objectives seek to reduce design errors; eliminate unnecessary costs; automate the generation of quantity bills; and maximise productivity performance.Design/methodology/approachAn inductive approach was adopted through a post positivist epistemological lens set within the context of a case study of a small- and medium-sized enterprise. From an operational perspective, both qualitative and quantitative data were collected and analysed via a novel four-phase waterfall design, namely, literature diagnosis; recording contemporary practice; mapping manufacturing workflow and procedures; and evaluation and proof of concept development.FindingsThe work illustrates that BDO enhances manufacturing workflow, reduces product manufacturing lead time and augments quality assurance throughout the whole life cycle of a manufactured product. The conceptual model developed provides a pragmatic and comprehensive solution to automate construction manufacturing procedures and to improve the facilitation of information exchanged between all stakeholders involved.Originality/valueThis study presents the first comprehensive case study of BDO application within a manufacturing context. Future research is however, needed to test and validate the conceptual model presented in practice. In doing so, the model can be further refined using practitioner input and real-life manufacturing processes and procedures.

Purpose Road passenger transportation faces a global challenge of reducing environmental pollution and greenhouse gas emissions because of the vehicle weight increases needed to enhance passenger safety and comfort. This paper aims to present a preliminary mechanical design evaluation of the Wikispeed Car (with a focus on body bending, body torsion and body crash) to assess light-weighting implications and improve the vehicle’s environmental performance without compromising safety. Design/methodology/approach For this research, finite element analysis (FEA) was performed to examine the Wikispeed chassis for light-weighting opportunities in three key aspects of the vehicle’s design, namely, for body bending the rockers (or longitudinal tubes), for body torsion (again on the rockers but also the chassis as a whole) and for crash safety – on the frontal crash structure. A two-phase approach was adopted, namely, in phase one, a 3D CAD geometry was generated and in phase, two FEA was generated. The combination of analysis results was used to develop the virtual model using FEA tools, and the model was updated based on the correlation process. Findings The research revealed that changing the specified material Aluminium Alloy 6061-T651 to Magnesium EN-MB10020 allows vehicle mass to be reduced by an estimated 110 kg, thus producing a concomitant 10 per cent improvement in fuel economy. The initial results imply that the current beam design made from magnesium would perform worst during a crash as the force required to buckle the beam is the lowest (between 95.2 kN and 134 kN). Steel has the largest bandwidth of force required for buckling and also requires the largest force for buckling (between 317 kN and 540 kN). Originality/value This is the first study of its kind to compare and contrast between material substitution and its impact upon Wikispeed car safety and performance.

Purpose Vehicle weight reduction represents a viable means of meeting tougher regulatory requirements designed to reduce fuel consumption and control greenhouse gas emissions. This paper aims to present an empirical and comparative analysis of lightweight magnesium materials used to replace conventional steel in passenger vehicles with internal combustion engines. The very low density of magnesium makes it a viable material for lightweighting given that it is lighter than aluminium by one-third and steel by three-fourth. Design/methodology/approach A structural evaluation case study of the “open access” Wikispeed car was undertaken. This included an assessment of material design characteristics such as bending stiffness, torsional stiffness and crashworthiness to evaluate whether magnesium provides a better alternative to the current usage of aluminium in the automotive industry. Findings The Wikispeed car had an issue with the rocker beam width/thickness (b/t) ratio, indicating failure in yield instead of buckling. By changing the specified material, Aluminium Alloy 6061-T651 to Magnesium EN-MB10020, it was revealed that vehicle mass could be reduced by an estimated 110 kg, in turn improving the fuel economy by 10 per cent. This, however, would require mechanical performance compromise unless the current design is modified. Originality/value This is the first time that a comparative analysis of material substitution has been made on the Wikispeed car. The results of such work will assist in the lowering of harmful greenhouse gas emissions and simultaneously augment fuel economy.

Purpose This research aims to investigate and identify knowledge transfer (KT) enablers within the developing country of Ghana. These enablers act as mechanisms to stimulate knowledge creation, knowledge protection and build effective knowledge-sharing (KS) behaviour in construction companies – consequently, they are crucial to business survival in a globally competitive market. Design/methodology/approach A perception questionnaire survey was used to elicit responses from construction practitioners using purposive and snowballing non-probability sampling techniques. Summary statistical analysis and a chi-square test was used to uncover relationships between the independent and dependent variables. Findings An empirical examination of data collected indicated that knowledge strategy, organizational culture, information technology and knowledge leadership as knowledge enablers have a significant positive relationship with KT. Future research is however required to measure transfer within an organization vis-a-vis measure perception of such. Originality/value The work presents a rare glimpse of the relationship between knowledge enablers and KT (particularly in a developing country context) and as such provides utility to policymakers and construction firms to enhance their knowledge capabilities.

PurposeThis paper aims to conduct a comprehensive literature review in the tidal energy physics, the ocean environment, hydrodynamics of horizontal axis tidal turbines and bio-mimicry.Design/methodology/approachThe paper provides an insight of the tidal turbine blade design and need for renewable energy sources to generate electricity through clean energy sources and less CO2emission. The ocean environment, along with hydrodynamic design principles of a horizontal axis tidal turbine blade, is described, including theoretical maximum efficiency, blade element momentum theory and non-dimensional forces acting on tidal turbine blades.FindingsThis review gives an overview of fish locomotion identifying the attributes of the swimming like lift-based thrust propulsion, the locomotion driving factors: dorsal fins, caudal fins in propulsion, which enable the fish to be efficient even at low tidal velocities.Originality/valueFinally, after understanding the phenomenon of caudal fin propulsion and its relationship with tidal turbine blade hydrodynamics, this review focuses on the implications of bio-mimicking a curved caudal fin to design an efficient horizontal axis tidal turbine.

Purpose This research aims to investigate the integration of real-time monitoring of thermal conditions within confined work environments through wireless sensor network (WSN) technology when integrated with building information modelling (BIM). A prototype system entitled confined space monitoring system (CoSMoS), which provides an opportunity to incorporate sensor data for improved visualization through new add-ins to BIM software, was then developed. Design/methodology/approach An empirical study was undertaken to compare and contrast between the performances (over a time series) of various database models to find a back-end database storage configuration that best suits the needs of CoSMoS. Findings Fusing BIM data with information streams derived from wireless sensors challenges traditional approaches to data management. These challenges encountered in the prototype system are reported upon and include issues such as hardware/software selection and optimization. Consequently, various database models are explored and tested to find a database storage that best suits the specific needs of this BIM-wireless sensor technology integration. Originality value This work represents the first tranche of research that seeks to deliver a fully integrated and advanced digital built environment solution for automating the management of health and safety issues on construction sites.

Purpose Enterprise systems (ES) upgrade is fundamental to maintaining a system’s continuous improvement and stability. However, while the extant literature is replete with research on ES upgrade decision-making, there is scant knowledge about how different decision processes facilitate this decision to upgrade. This paper aims to investigate and better understand these processes from an organisational perspective. Design/methodology/approach The study adopted a qualitative survey design, and used a Web-based questionnaire and semi-structured interviews to collect data from 23 large organisations. Data accrued were qualitatively analysed and manually coded to identify the various decision processes undertaken during ES upgrade decisions. Findings Analysis results reveal complex interrelations between the upgrade drivers, the need to evaluate the new version’s functionality and the upgrade impact. Understanding the interaction between these elements influences the upgrade decision process. Research limitations/implications The study proposes ES upgrade processes that support a decision to upgrade major releases. Further research is required to offer either similar or conflicting arguments on the upgrade decision-making and provide a probabilistic generalisation of the decision-making processes. Originality/value The research offers a comprehensive and empirically supported methodical approach that embraces an evaluation of a new version’s functionality, technical requirements and concomitant upgrade implications as intrinsic decision processes. This approach assists in the decisions to establish the upgrade need and determine the level of change, effort required, impacts and associated benefits.

Purpose Investment in power and electricity generation for replacing aging infrastructure with new represents a major challenge for developing countries. This paper therefore aims to examine infrastructure projects’ characteristics and how socio-political and economic investment environments interplay to influence the degree of private sector participation (PPP) in infrastructure delivery in Ghana. Design/methodology/approach Using World Bank Public-private infrastructure advisory facility (PPIAF) and private participation in infrastructure (PPI) project database data from 1994 to 2013, binary logistic regression was used to: determine the probability of a higher or lower degree of PPP; and examine the significance of factors that are determinants of private investments. Findings The findings reveal that the private sector is more likely to invest in a higher degree of PPP infrastructure projects through greenfield and concession vehicles as opposed to management and leasing contracts. From the extant literature, drivers of PPP included infrastructure project characteristics and the social–economic–political health of the host country. However, the significance, direction and magnitude of these drivers vary. Originality/value This paper identifies investment drivers to PPP advisors and project managers and seeks to engender discussion among government policymakers responsible for promoting and managing PPP projects. Direction for future work seeks to explore competitive routes to infrastructure debt and equity finance options that finance energy projects.

PurposeIn developing countries, delays in highway infrastructure projects caused by financial distress-related factors threaten the construction industry’s capacity to contribute optimally to economic development. Against this backdrop, this paper aims to determine factors contributing to financial distress and develops a conceptual framework to illustrate the relationship between financial distress and project delay.Design/methodology/approachA questionnaire survey collected data on factors that contributed to financial distress and delays in highway infrastructure delivery. In total, 78 responses were obtained, and factor analysis revealed that factors associated with payment, project financing, cash flow, economic issues, project planning and cost control influenced project delays.FindingsThe research identifies the importance of efficient public and private policies to engender financial sustainability among construction firms in developing countries.Originality/valueThis work presents the first research of its kind and strives to engender wider academic debate and renewed economic development in some of the world’s most impoverished nations.

Purpose Credit market development requires appropriate credit assessment and default policies. This paper aims to examine the impact of household characteristics on mortgage default, using survey data collected from Ghanaian financial institutions. Design/methodology/approach Data were gathered using semi-structured questionnaires from customers of five universal banks in Ghana. A logistic regression was used to model the determinants of credit default propensity. Findings Contrary to established knowledge, the study shows that females are more likely to default on credit than their male counterparts. This is even more likely if the female is older, unmarried, divorced and financially illiterate and has lower educational attainments. These factors are associated with lower earning capacity, which increases default tendencies. The findings confirm that price instability (typified by excessive movements in inflation and exchange rates in addition to low national savings rate) are adversely linked to credit defaults. Borrower’s perception of constraints to credit access (such as collateral requirements, interest rate and loan size) influence credit default. Banks should be encouraged to invest in the financial literacy skills development of their customers to mitigate credit default tendencies. Social implications The study is of practical value to credit officers and the development of the credit market in Ghana. A novel model is presented for assessing credit applications and developing credit default policies. Originality/value The research findings have not only expanded the frontiers of literature but also empirically examined the determinants of credit default propensity, which provides a basis for developing and improving credit default policy in the credit market. Scopus

Purpose Price fairness is important amongst construction and engineering consultants because a perceived lack of it engenders unwillingness to pay amongst clients. This can create contractual disputes that negatively impact upon a consultant’s ability to generate sufficient revenue to ensure business continuity and survival. With this in mind, this research aims to analyse the pricing measurement forces needed to attain pricing fairness within a Ghanaian construction cost consultancy practice. Specific objectives are to identify the key variables responsible for price fairness within cost consultant services and to establish any interrelationships between them. Design/methodology/approach This study leans towards the positivist methodological tradition by adopting a quantitative approach. A survey questionnaire was distributed to a random sample of 79 construction cost consultancies, drawn from a population of 372, who were registered with the Ghana Institution of Surveyors. Hypotheses developed from the literature review were then tested on data collected. Findings The analysis revealed that fairness of construction cost consultancy services pricing is significantly related to value and affordability, pricing objectives, pricing strategies, taxes and international trade and its effects on inputs for construction cost consultancy services. Originality/value The paper advances knowledge by providing a basis for the consideration of pricing forces in the valuing of construction cost consultancy services which hitherto has not been the case.

Purpose The purpose of this study is to explore the mortgage affordability problem in Ghana, an issue that has been associated inter alia with high mortgage rates, which results from the high cost of capital, an unstable macroeconomy and unfavourable borrowers’ characteristics. Concurrent improvements in both the macroeconomy and borrowers’ characteristics have rendered the identification of the most problematic mortgage pricing determinant difficult, consequently making the targeting of policy interventions problematic. Design/methodology/approach This research sought to resolve this aforementioned difficulty by providing empirical evidence on the relative importance of mortgage pricing determinants. A data set of mortgage rates of selected Ghanaian banking financial institutions from 2003 to 2013 was examined and analysed by applying Fisher’s model of interest rates and an ex post analysis of the standard regression coefficients. Findings The risk premium factor emerged as the most important determinant in Ghana compared with the inflation premium and the real risk-free rate, although all are statistically significant and strongly correlated with mortgage rates. Originality/value This study provides an insight on the relative importance of mortgage pricing determinates and subsequent macro-economic guidance to support policy interventions which could reduce mortgage rates/enhance mortgage affordability. The paper specifically aims to engender wider debate and provide guidance to the Ghanaian Government and/or private enterprises that seek to provide affordable mortgages. Further research is proposed which could explore ways of reducing mortgage rates as a means of engendering social equality and adopt innovative international best practice that has already been tried and tested in countries such as South Africa and the USA.

Purpose– The purpose of this paper is to critically examine and report upon the barriers that constrain MI within the Ghanaian construction consulting sector. Globalization and the shift towards knowledge-based economies have encouraged organizations to adopt management innovation (MI) as a means of increasing market share and creating competitive leverage. Organizations within developing countries, such as Ghana, have followed this global trend, but barriers continue to affect MI adoption.Design/methodology/approach– The research is positioned within a mixed methods “deductive” methodological tradition and is undertaken via a three-stage iterative approach. First, the research synthesizes relevant literature to identify 14 potential barriers to MI adoption. Second, using convenient and snowball sampling techniques, structured survey questionnaires were distributed to 70 consulting firms within the Kumasi metropolis; a high 78.5 per cent response rate was returned. Third, data were analyzed using descriptive statistics and principal component (factor) analysis to determine underlying barriers that restrict MI adoption.Findings– The barriers to MI adoption are contained within four inextricably linked factor groups: organizational structural influences, flow of information, institutional constraints and costs of innovations. The findings demonstrate that innovation thrives in an organizational environment that nurtures creativity, staff development, moderate risk taking and idea generation and management – albeit, the external economic environment must also be conducive to facilitating innovation within companies and organizations.Practical implications– Innovation within construction companies is a prerequisite requirement for a dynamic and competitive economy because it nurtures self-regulating “free market” behavior, which creates considerable benefit to an economy. Such an attribute is particularly attractive for the developing country of Ghana, which has historically suffered from recurrent social, political and economic pressures. Hence, the research findings will be of practical interest to policymakers, academics and industrialists who have a vested interest in improving the performance of the Ghanaian economy. It will also be of interest to others within developing countries who are experiencing similar issues.Originality/value– This research work builds upon the work of previous scholars in this field and investigates the barriers to implementing MI in Ghana. The paper’s findings will be useful to organizations and government policymakers who seek to increase business performance within a free market and profitability in an ever increasingly competitive world.

PurposeTrade credit is treated as a financial intermediation device whereby construction vendors act as financial providers to their customers through deferred payments of goods purchased. The purpose of this paper is to investigate and report upon the key factors and motives influencing vendors' decision on trade credit provision to small to medium sized construction firms.Design/methodology/approachAdopting deductive methodological approach, this paper utilises a combination of primary data emanating from structured survey questionnaires supplemented by secondary source of data from an extensive literature review, to present insightful commentary about trade credit provision in Ghana. The structured survey questionnaire was administered to 100 construction vendor firms/suppliers to elicit relevant data about their trade credit intentions. Drawing upon the principles of a total design method (TDM) of survey, a relatively high response rate of 57 percent was achieved. Principal component (factor) analysis was adopted to obtain simplification of variables and to detect underlying dimensions and reveal potential complex structures within decision variables.FindingsThe underlying constructs and motives of vendors on trade credit were intricately interwoven in two principal factors: risk distribution and liquidity; and sustaining business relationship and liquidity. Despite the uncharacteristic manifestation of the liquidity measure being associated with the two principal components, the findings demonstrate the relative importance of liquidity in the trade credit debate. A critical observation stemming from the analysis was that trade policy was absent within the trade credit market in Ghana; this poses a potential threat to trade credit exchange and its development.Originality/valueThe paper's methodological approach is uniquely positioned between the conceptual and empirical interface and the overarching research is pioneering within the developing world nation of Ghana. The paper's findings will be useful to contractors, particularly, small and medium size contractors who are considering feasible finance options; and vendors who seek to consolidate their clientele base.

Purpose – Construction plant and equipment accident statistics suggest constant re‐evaluation of health and safety (H&S) systems is beneficial. This paper aims to process analyse plant and equipment H&S management systems on UK construction sites, with a view to applying information and communication technology (ICT) to them as an improvement mechanism.Design/methodology/approach – Five construction project case studies drawn from members of the former Major Contractors Group yield rich H&S process data. These are analysed using data flow diagram (DFD) techniques, to evaluate processes and proffer system improvements incorporating ICT.Findings – Causes of unsafe practice regarding management of construction plant and equipment are found to include: aspects of the plant itself, management processes and operator competence. A new ICT “process paradigm” is suggested, the architecture of which incorporates mobile computing, automatic identification and data collection and a management information system.Resea...

PurposeA literature review is presented in the subject of construction plant and equipment management (CPeM) to: delineate the subject; consider its development over recent years; and identify principal themes within it. The paper aims to close the gap in knowledge, by using these objectives as a mechanism to observe how research themes relate to primary CPeM functions, and to suggest future research direction.Design/methodology/approachA thematic review of CPeM academic literature (in the main, refereed journal papers published in English‐speaking countries over the last decade) is undertaken; the nature of identified themes is discussed, for instance, regarding why they might have evolved as they have; and based on the foregone, themes for future research in the field are proffered.FindingsCPeM is found well established within the broader subject of construction management. Eight principal themes are identified, namely plant maintenance; downtime and productivity; optimisation; robotics and automation; health and safety; operators and competence; machine control; and “miscellaneous”.Research limitations/implicationsIt is proffered that based on informational/technological advancements coupled with growing environmental/financial pressures, future CPeM research will strive to facilitate even greater plant reliability and safer modes of working. It is suggested that “optimum production methods” and “minimal resource consumption” will become inherent theme goals.Originality/valueThis is the first time that CPeM research has been consolidated and reviewed for publication in this manner.

PurposeNumerous factors relate to the effectiveness of health and safety (H&S) management within construction; but a specific factor influencing the extent of H&S “incidents” on site, is the amount of H&S knowledge held by construction workers. This paper aims to offer some initial observations on construction workers' H&S knowledge, based upon test‐result data from an invigilated online H&S test.Design/methodology/approachData from 564 candidates were analysed principally by observing mean performance scores and apparent differences, among the sample and defined sub‐samples, for each of five H&S subject groupings that make up the test.FindingsMean scores indicate better retained knowledge in “general H&S” questions and lower knowledge in “manual handling” questions. There was little difference in mean scores between defined candidate age groups; or between different size classifications of candidates' employer organisations. Perceived characteristics of employers' training regimes did not appear to impact test results either.Research limitations/implicationsDisparity among sub‐sample sizes within the data means that these findings are indicative and accordingly, have implications for a follow‐on study that will utilise deterministic modelling to more definitively confirm the effect of formal training and other (e.g. workplace) characteristics, on worker H&S knowledge retention.Originality/valueThe paper shows that workers having recently undertaken H&S training exhibit greatest retained knowledge, the level of which remains relatively consistent regardless of where a candidate lives, or a candidate's age group.

Hiring, selecting or assessing plant operatives' proficiency in the UK construction industry is an increasingly difficult task. A number of plant operator certification schemes are available to practitioners and each scheme trains to a myriad of bespoke standards. Consequently, the decision to employ a candidate often rests upon the employer's intuition and judgement and creates an unnecessary dilemma. To address this aforementioned problem, findings of research work that modelled plant operators' maintenance proficiency is presented. A UK nationwide survey was conducted to elicit plant professional opinion on what ‘training and educational’ (T&E) attributes constitute ‘good’ operator proficiency. The data was then arranged into three categories of operator maintenance proficiency: good, average and poor Multivariate Discriminant Analysis (MDA) was used on 75 percent of a simulated data set. The model utilised five T&E attributes, namely: duration of training provided, operator holder of alternative training card (not Certificate of Training Achievement (CTA) or Scottish/National Vocational Qualifications (S/NVQ)), operator's oral communication skills, operator's planning skills and operator's mechanical knowledge. Performance analysis revealed that model classification accuracy was 89.10 percent. The remaining 25 percent hold out sample was then modelled for validation purposes using the derived MDA model. Accuracy of the sub‐sample model was high at 77.60 percent whilst a paired sample T‐tests for the 75 percent and 25 percent sample data established that there was no significant statistical difference between actual and predicted classifications. Future work is proposed that aims to model other factors that influence operator maintenance proficiency; namely, work situational, motivational management and personal factors.

Construction plant breakdown affects projects by prolonging duration and increasing costs. Therefore, prediction of plant breakdown, as a precursor to conducting timely maintenance works, cannot be underestimated. This paper thus sought to develop a model for predicting plant breakdown time from a sequence of discrete plant breakdown measurements that follow non‐random orders. An ARIMA (1,1,0) model was constructed following experimentation with exponential smoothening. The model utilised breakdown observations obtained from six wheeled loaders that had operated a total of 14,467 hours spread over a 300‐week period. The performance statistics revealed MAD and RMSE of 5.03 and 5.33 percent respectively illustrating that the derived time series model is accurate in modelling the dependent variable. Also, the F‐statistics from the ANOVA showed that the type and frequency of fault occurrence as a predictor variable is significant on the model's performance at the five percent level. Future work seeks to consider a more in depth multivariate time series analyses and compare/contrast the results of such against other deterministic modelling techniques.