Feasibility study considerations for transport infrastructure performance : a desk study
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2017
- Subjects: Forecasting , Infrastructure , Performance
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/241679 , uj:24911 , Citation: Okoro, C.S., Musonda, I. & Agumba, J.N. 2017. Feasibility study considerations for transport infrastructure performance : a desk study. The Ninth International Conference on Construction in the 21st Century (CITC-9), March 5th-7th, 2017, Dubai, United Arab Emirates.
- Description: Abstract: Transport infrastructure projects are complex, stochastic and fraught with uncertainties, which if not accurately predicted, can lead to inadequate assessment and management of risksand over time, poor performance in terms of costs, and associated expected benefits from implementation. The objective of this paper is to identify critical factors which should ideally be included in feasibility studies for adequate prediction of performance of road projects while in operation. A thorough in-depth desk study was conducted using extant literature (from conference proceedings and journals) and reports on feasibility and performance of transport infrastructure projects in Africa and world over. Findings revealed that effectiveness of procurement and financing strategies was the most considered factor during feasibility studies, among the sampled studies; followed by public participation, role of national government and traffic demand factors. Other factors included project environment, planning for operations and effectiveness of plans. These findings will be beneficial to investors who need assurance of the worthwhile performance of transport projects in which they intend to invest in. The study will inform selection of worthwhile projects among alternative and competing options which need to be implemented with limited resources.
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A factor analysis of transportation infrastructure feasibility study factors : a study among built environment professionals in South Africa
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Feasibility studies , Infrastructure , South Africa
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/399973 , uj:33360 , Citation: Okoro, C.S., Musonda, I. & Agumba, J.N. 2019. A factor analysis of transportation infrastructure feasibility study factors : a study among built environment professionals in South Africa.
- Description: Abstract: Please refer to full text to view abstract.
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A factorial analysis of safety performance measures: a study among construction workers in Gauteng, South Africa
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala , Exploratory factor analysis
- Date: 2016
- Subjects: Construction workers , Safety performance
- Language: English
- Type: Conference proceedings
- Identifier: http://ujcontent.uj.ac.za8080/10210/377046 , http://hdl.handle.net/10210/94004 , uj:20418 , Citation: Okor, C.S., Musonda, I. & Agumba, J.N. 2016. A factorial analysis of safety performance measures: a study among construction workers in Gauteng, South Africa.
- Description: Abstract: The health and safety (H&S) of construction workers has been a subject of much deliberation for decades. However, there is scant literature focusing on aspects of workers’ safety performance (SP) relating to their unhealthy and unsafe eating behavior. The paper presents findings on an exploratory factor analysis of H&S performance measures. A 10- item questionnaire which was developed after an extensive literature review was used to collect empirical data on SP of construction workers in the Gauteng Province of South Africa. Results showed that SP could be reasonably measured by two constructs. The two constructs were clearly defined as trailing and prevailing. The emerged trailing measures were named lagging indicators while the prevailing ones were designated as leading indicators. The results lend support to extant literature which advocates the use of both leading and lagging safety performance indicators for effectively assessing construction workers’ safety performance. The study provides evidence which could be beneficial in psychometric evaluation of construction workers’ safety performance and behaviours on construction sites.
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Determinants predicting credit accessibity within small and medium-sized enterprises in the South African Construction Industry
- Authors: Balogun, Olanrewaju Abdul , Agumba, Justus Ngala , Ansary, Nazeem
- Date: 2016
- Subjects: Accessibility , Characteristics , Small and medium
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93905 , uj:20406 , Citation: Balogun, J.N., Agumba, J.N. & Ansary, N. 2016. Determinants predicting credit accessibity within small and medium-sized enterprises in the South African Construction Industry.
- Description: Abstract: The contribution of Small and Medium-sized Enterprise (SME) sector in economic development, job creation and income generation has been recognized worldwide. These contributions are effectively articulated in South Africa construction industry discourse. However, the main problem limiting the SMEs sector to contribute fully in the mainstream economy is the shortage of finance. This study examines the impact of firm characteristics in access to credit by the South African SMEs in the construction industry. A deductive methodological approach was used to examine this problem. This paper utilises a combination of primary data emanating from structured survey questionnaires supplemented by secondary source of data from an extensive literature review, in order to present insightful commentary about credit accessibility within SMEs in South Africa. The structured survey questionnaire was administered to 179 construction small and medium organizations to elicit relevant data about their credit accessibility. Binary logistic regression was applied to determine the influence of demographic variables on credit accessibility. The equation specified access to credit as dependent variable while firm and personnel characteristics as independent variable. The statistical package for social science version 22 was used. The results indicate that firm characteristics influence access to finance. The study recommends that South Africa SME contractors should maintain attractive firm attributes to stimulate lenders to extend finance to their investments.
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Identifying worksite intervention strategies to improve construction workers’ nutrition : a review of literature
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2017
- Subjects: Construction workers , Health and safety , Nutrition
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/241749 , uj:24919 , Citation: Okoro, C.S., Musonda, I. & Agumba, J.N. 2017. Identifying worksite intervention strategies to improve construction workers’ nutrition : a review of literature.
- Description: Abstract: The nutrition of construction workers appears to be understudied despite anecdotal evidence that suggests that it is closely linked to health and safety (H&S) performance and productivity of the workers on construction sites. The objective of this paper is to identify possible worksite interventions to improve the nutrition of construction workers. A review of literature based on both South African and international context was conducted from journal, conference proceedings, books, magazines, theses and dissertations. Findings revealed that supplementary feeding programmes, nutrition education and environmental and/organizational changes could beget better nutritional behaviour among construction workers, whose food choices comprise mainly of fast-foods and fizzy drinks. The study emphasizes the need for nutrition of construction workers to be given adequate consideration on worksites.
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A construction health and safety performance improvement model for South African small and medium enterprises
- Authors: Agumba, Justus Ngala
- Date: 2013-12-09
- Subjects: Construction industry - Safety regulations - South Africa , Construction industry - South Africa - Safety measures , Construction industry - Personnel management , Construction industry - Labor productivity
- Type: Thesis
- Identifier: uj:7810 , http://hdl.handle.net/10210/8705
- Description: D.Phil. (Engineering Management) , Considering its share in and impact on national economies, the construction industry receives additional attention in terms of its performance and productivity especially small and medium construction enterprises (SMEs). However, with the extensive amount of workforce it employs, health and safety (H&S) has become important. Since the industry has the reputation of poor H&S performance especially SMEs. It has been accepted that H&S management practices constitute a vehicle to improve H&S performance, which reflects the H&S culture of the organization. However, the challenge is to determine what needs to be measured and practiced by SMEs at project level. The main objective of this thesis was to develop a construction H&S performance improvement model at project level of SMEs. A triangulation approach was used to develop the model using Delphi method and questionnaire survey. The Delphi method straddles between quantitative and qualitative research. Thirty H&S experts were purposively sampled and 20 agreed to participate in the Delphi process. However, 16 H&S experts completed the four iterations. The experts reached consensus on 31 statements or leading indicator metrics categorized in seven H&S elements/constructs. The final refined H&S conceptual model consisted of one independent construct, four intervening constructs and one dependent construct. Furthermore, a quantitative survey with 1,450 conveniently sampled SMEs was conducted. A total of 228 questionnaires were returned of which 216 were deemed usable representing 15.72% response rate. Exploratory factor analysis (EFA) using Statistical Package for the Social Sciences (SPSS) version 20 using Maximum Likelihood with Promax rotation was used to determine the validity and reliability of the six H&S constructs of the refined conceptual model. The six H&S construct and 40 statements were retained as valid and reliable measures of H&S for SMEs at project level. A further validity and reliability test was conducted using confirmatory factor analysis (CFA) using Mplus version 6.1, software program. The CFA revealed acceptable model fit of the measurement model after the re-specification of some of the measurement models. Finally the structural model was tested using Mplus version 6.1 to determine the constructs relationship. The findings revealed that the structural model data was acceptable and of the 12 hypotheses tested, six were significant. However, four significant relationships influenced H&S performance. The influential relationships were; upper management commitment and involvement in H&S indirectly influenced H&S performance through project supervision and H&S resources and training. These three proactive H&S elements are posited to be essential to improve H&S performance at project level of SMEs. Furthermore, one-way analysis of variance (ANOVA) established no statistical significant difference on the respondents’ perception of H&S model elements. However, t–test revealed statistical significant difference on the respondents’ perception on H&S performance, upper management commitment and involvement in H&S and H&S resources and training. The respondents with post-matric qualification strongly agreed that the way they managed H&S at project level had improved their H&S performance. Furthermore, they strongly agreed that upper management are committed and involved in H&S and H&S resources and training were provided. Multiple linear regression analysis was further used to test the influence of demographic variables on the H&S model elements. The selected demographic variables were; experience in the construction industry, education level and the number of employees. The result indicated that the demographic variables were not good predicators of the H&S model elements. Finally, the use of self-reported questionnaire and majority of respondents conducting business in Gauteng province in South Africa were some of the limitations in this study.
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Evaluating the use of project management techniques in infrastructure delivery by South African small and medium sized contractors
- Authors: Agumba, Justus Ngala
- Date: 2008-07-16T12:54:49Z
- Subjects: Project management , Construction industry , Small business
- Type: Thesis
- Identifier: uj:7289 , http://hdl.handle.net/10210/802
- Description: South Africa is currently faced with the challenge of reducing the huge backlog of infrastructure delivery to communities that were previously disadvantaged. Given the prioritization of empowerment by the South African government, the previously disadvantaged and marginalized sector of the construction industry that comprises mainly, Small and Medium Enterprises (SMEs) is the preferred vehicle of delivery. However, consequent to their historic position outside of the mainstream construction industry, they lack the requisite project management expertise and experience to make good on this objective. This study investigates the characteristics of the personnel managing SMEs and the SMEs themselves, the usage, necessity, importance and adequate use of the techniques, effectiveness and potential applicability of various project management techniques to improve the performance of the SMEs in delivering the much-needed infrastructure. The study also identifies those external and internal factors that are detrimental to the effective implementation of project management techniques. Given the aforementioned, a descriptive survey was conducted among contractors who were either registered members of the Gauteng Master Builders Association (GMBA) or the National Home Builders Registration Council (NHBRC) in Gauteng. The data was collected using a semi-structured, structured and open-ended interview questionnaire, and analysed using descriptive analysis, severity index and content analysis respectively. The findings indicate that experienced and educated personnel manage SMEs. There is usage of essential project management techniques, which the contractors agreed are necessary and important in managing their projects. There is inadequate use of project management techniques among the SMEs. When used, the techniques brought about improvement in the delivery of projects. The research also established various factors that deterred the adequate implementation of project management techniques, namely, lack of adequate project information from professionals, time and financial constraints. The research concludes by suggesting that if significant improvements in the delivery of construction projects are to be attained, the findings stated need to be taken into consideration. , Mr. F.C. Fester Prof. F.A.O. Otieno Mr. I.O. Adegoke
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Analysis of credit rationing among construction enterprises SMEs within financial institutions : a case of Gauteng Province in South Africa
- Authors: Balogun, Olanrewaju Abdul , Agumba, Justus Ngala , Ansary, Nazeem
- Date: 2017
- Subjects: Construction , Enterprises (SMEs) , Financial Institutions
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/244797 , uj:25318 , Citation: Balogun, O.A., Agumba, J.N. & Ansary, N. 2017. Analysis of credit rationing among construction enterprises SMEs within financial institutions : a case of Gauteng Province in South Africa.
- Description: Abstract: Economic diversification is a key policy goal for the Government of South Africa. SMEs offer a feasible option towards the actualization of this goal. The expansion of construction SMEs in South Africa, however is constrained by lack of access to bank credit. This constrained access to credit is argued in the literature to be due to the credit rationing behavior of banks emanating from asymmetric information in credit markets. Constrained access to credit stifles the growth potential of this vibrant sector which is increasingly generating employment opportunities especially for young enterprises. Department of Trade and Industry (DTI, 2007). This study therefore investigated the factors that influence the credit rationing behavior of banks towards SMEs. A deductive methodological approach was used to examine this problem. The structured survey questionnaire was administered to 179 construction small and medium organizations to elicit relevant data about their credit rationing. Binary logistic regression was applied to determine the influence of demographic variables on credit rationing. The statistical package for social science version 22 was used.The study findings suggest that the experience of SMEs reduces their probability of being credit rationed by banks. From the bank perspective the experience of SMEs is determined from their ability to keep proper financial statements, the performance of their bank accounts with the banks, and their ability to make profits. This calls for capacity building of SMEs in areas of business management (including financial record keeping) if they are to be rated as credit worthy borrowers by the banks. From the SMEs perspective, there is need for banks to improve their efficiency in terms of reduction of loan processing time and cost of borrowing (i.e. interest rate). This will improve access to bank credit by the construction SMEs and promote their growth thereby stimulating economic diversification, employment creation opportunities, and poverty reduction in line with South African Vision 2020
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Identifying construction workers injury predictors : a thematic content analysis
- Authors: Agumba, Justus Ngala , Musonda, Innocent
- Date: 2015
- Subjects: Construction workers - Health and hygiene , Construction industry - Safety measures
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/55313 , uj:16278 , Citation: Agumba, N.J. & Musonda, I. 2015. Identifying construction workers injury predictors : a thematic content analysis. In: Behm, M. & McAleenan, C. (eds.). Proceedings of the CIB W099 International Health and Safety Conference. September, 9-11, Belfast.:220-230. ISBN: 978-1-909854-01-7. , ISBN: 978-1-909854-01-7
- Description: Abstract: Construction is a dangerous industry globally, with high rates of fatal and non-fatal injuries. Furthermore, there is paucity of analytical research that considers the predictors of injuries among construction workers in South Africa construction industry and in the developing countries. The objective of this paper is to review existing research literature to identify the variables that are considered to be predictors of occupational injuries among construction workers. It also aimed to identify the gaps that exist in the current literature. The review spanned two decades between the periods January 1995 to 2015. The search was based on a systematic keyword combination search in two databases that is- emerald and science direct and in google. Twenty one quantitative and mixed method research studies were adjudged relevant for analysis in this current study. They were analysed using thematic content analysis, by identifying themes. All the studies reviewed had different predictors of construction workers injury. Furthermore, no study identified the safety leadership characteristics of the construction workers especially the tradesmen, hence a further gap identified in the current literature. Despite the gaps identified, five broad themes were adjudged to be good predictors of construction workers injuries, these were: work related variables, demographic variables, unsafe health and safety (H&S) behaviour, poor safety climate, and psychosocial factors. A further study is advocated to develop a predictive model for injury occurrence among construction workers in South Africa using logistic regression analysis. The model to be tested will also include the safety leadership characteristics of the construction workers.
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An investigation into credit accessibility for small and medium scale enterprise in construction industry of Gauteng province in South Africa : literature review
- Authors: Balogun, Olanrewaju Abdul , Ansary, Nazeem , Agumba, Justus Ngala , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
- Date: 2017
- Subjects: Credit accessibility , Small and medium construction enterprise , South Africa
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/243782 , uj:25200 , Citation: Balogun, O.A. et al. 2017. An investigation into credit accessibility for small and medium scale enterprise in construction industry of Gauteng province in South Africa : literature review.
- Description: Abstract: This paper focuses on determining the socio-economic and demographic factors that predict credit accessibility from financial institutions (banks) in South Africa. Data was obtained through, questionnaire survey from 179 small and medium enterprises (SMCEs) who were conveniently sampled. The questionnaire was developed from literature review. The socioeconomic and demographic determinants predicting credit accessibility were identified. The data was analysed using statistical package for the social sciences (SPSS) version 22.The results indicate that credit was predicted by age group, current position in the organization, tax number and location. The gender of the respondent, type of business ownership and collateral (security). This study informs SMCEs owners and managers to provide, their age, current position in the organization when applying for credit. Furthermore, they should provide the tax number and the location of the business in order for them to obtain credit from banks.
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Determinants of bridging loan among small and medium-sized enterprises in the South African Construction Industry
- Authors: Balogun, Olanrewaju Abdul , Ansary, Nazeem , Agumba, Justus Ngala
- Date: 2017
- Subjects: Determinants , Bridging loan , Small and medium
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/243838 , uj:25208 , Citation: Balogun, O.A., Ansary, N. & Agumba, J.N. 2017. Determinants of bridging loan among small and medium-sized enterprises in the South African Construction Industry.
- Description: Abstract: Small and medium construction enterprise (SMEs) has become the significant clout of sustained, instantaneous and bracing growth of South Africa economy. Moreover, SMEs has performed an unparalleled role in advancing the South Africa economic growth, and serve as a breeding ground for entrepreneurs and a provider of solutions to address the problems of unemployment in all consuming labours and promoting marketing growth. An opportunity for the healthy advancement of small and medium-sized enterprises (SMEs) in South Africa was in relation to the transformation and expansion policy due to the brisk evolution of the global economy. But with the global economic integration, the small and medium-sized enterprises operating environment is facing tremendous changes and more intense competition. The data was obtained using questionnaire survey. 179 small and medium contractors responded from conveniently sampled respondents in Gauteng province in South Africa. The data was analysed using Statistical Package for the Social Sciences (SPSS) version 22...
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An exploratory factor analysis of transportation project sustainability indicators : a case of projects in South Africa
- Authors: Okoro, Chioma , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Infrastructure , Performance , South Africa
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/396810 , uj:32956 , Citation: Okoro, C., Musonda, I. & Agumba, J.N. 2019. An exploratory factor analysis of transportation project sustainability indicators: a case of projects in South Africa.
- Description: Abstract: Sustainable transportation is vital since its impact traverses generations. The concept of sustainable transportation is known to account for incorporation of various elements including environmental, economic, social and institutional factors. The current study employed exploratory factor analytic technique using maximum likelihood factoring to identify critical indicators for assessing transportation infrastructure projects in South Africa. Using purposive and snowball sampling, a questionnaire was distributed via email, google forms and by hand, to project managers, directors, construction managers, planners and feasibility study consultants involved in transportation projects at different stages, in the nine provinces of South Africa. Empirical data amassed from 132 responses, were analysed using SPSS version 25 software.s Descriptive analyses were used for preliminary analyses. Inferential statistics was conducted using exploratory factor analysis, to output common factors and the minimum number of variables that were related to each construct. Findings revealed that a four-factor structure including infrastructure condition and impacts, user acceptability, financial management and safety and security, can adequately measure transportation infrastructure project sustainability. By establishing critical indicators for assessing transportation projects, the study provides relevant evidence to develop strategies to ensure that such investments bring lasting and desirable impacts in the long run. The study was conducted in South Africa and may not be generalisable to other geographical regions, which may have differing priorities with regard to sustainable performance of transport infrastructure. Further studies are on-going to validate the four-factor structure using confirmatory factor analytical techniques.
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A factor analysis of transportation infrastructure feasibility study factors : a study among built environment professionals in South Africa
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Feasibility studies , Infrastructure , South Africa
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/404244 , uj:33893 , Citation: Okoro, C.S., Musonda, I. & Agumba, J.N. 2019. A factor analysis of transportation infrastructure feasibility study factors : a study among built environment professionals in South Africa.
- Description: Abstract: Please refer to full text to view abstract.
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Validity and reliability of a transportation infrastructure sustainable performance framework : a study of transport projects in South Africa
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Infrastructure , South Africa , Sustainability
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/406475 , uj:34176 , Citation: Okoro, C.S., Musonda, I., Agumba, J.N. 2019. Validity and reliability of a transportation infrastructure sustainable performance framework: a study of transport projects in South Africa. Construction Economics and Building, 19:2, 126-143. https://doi. org/10.5130/AJCEB.v19i2.6730 , ISSN: 2204-9029
- Description: Abstract: Transportation infrastructure contributes to the development of an economy. However, the performance of such infrastructure is hampered if sustainability elements are not considered at the initiation/conception and operation stages of the projects. The study aimed to validate a structure of transportation project sustainability measures to evaluate projects and ensure continual delivery of intended benefits in the long run. Empirical data were collected using a field questionnaire survey developed from the literature review and a preliminary qualitative inquiry. A total of 132 built environment professionals were included based on purposeful and snowball sampling techniques. A model-generating confirmatory factor analysis was undertaken to validate underlying structures of sustainability measures established from a...
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Evaluating the relationship between communication management practices and project outcomes : a case study of Eswatini (Swaziland) construction industry
- Authors: Khanyile, Nokulunga S.M. , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Communication management practices , Project outcome , Construction projects
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/406483 , uj:34177 , Citation: Khanyile, N.S.M., Musonda, I., Agumba, J.N. 2019. Evaluating the relationship between communication management practices and project outcomes: a case study of Eswatini (Swaziland) construction industry. Construction Economics and Building, 19:2, 197-219. https://doi.org/10.5130/AJCEB. v19i2.6646 , ISSN: 2204-9029
- Description: Abstract: Communication management is viewed as an imperative factor associated with performance improvement in construction projects. In Eswatini, it is established that projects experience poor project delivery associated with poor communication management practices. This study seeks to elucidate communication management practices informed by local culture and relate it to project outcome. A questionnaire survey of practitioners registered with Eswatini construction industry council was adopted for the study. Data was collected from 66 respondents. Principal axis factoring established nine practices namely; information technology, communication technology, communication skills and competence, communication management plan, teamwork, clear channels within organisation’s structure, project brief requirement management, project brief risk requirement management and context of environment as being key factors to project positive outcome. Spearman’s rho established...
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Validating a framework of transportation infrastructure project sustainability measures
- Authors: Okoro, Chioma Sylvia , Musonda, Innocent , Agumba, Justus Ngala
- Date: 2019
- Subjects: Confirmatory factor analysis , Infrastructure , South Africa
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/407489 , uj:34302 , Citation: Okoro, C.S., Musonda, I., Agumba, J.N. 2019: Validating a framework of transportation infrastructure project sustainability measures.
- Description: Abstract: t Purpose of this paper Transportation infrastructure contributes significantly to any economy. However, the long-lasting nature of such projects is threatened if sustainability elements are not taken cognizance of during the planning and operation stages of the projects. The objective of the current study is to validate a structure of transportation project sustainability measures to evaluate projects and ensure continual delivery of intended benefits in the long run. Design Empirical data were collected using a field questionnaire survey developed from literature review and a preliminary qualitative inquiry. A total of 132 built environment professionals were included based on purposeful and snowball sampling techniques. A model-generating confirmatory factor analysis was undertaken to validate underlying structures of sustainability measures. Findings The findings validated that a four-factor structure, with eleven variables, could adequately measure transportation infrastructure project sustainability (PS). The CFA structure achieved construct, convergent and discriminant validity, with fewer variables than theorised and established in the exploratory factor analysis. Value The validated four-factor structure is envisaged to be beneficial to transportation infrastructure project stakeholders in better decision-making with regard to selecting worthwhile projects as well as monitor operational projects with the aim of delivering long-term benefits to generations of users.
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