Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection

Purpose: This paper presents research findings that involve the use of analytic network process (ANP) to select contractors for build–operate–transfer (BOT) infrastructure in Nigeria. To deliver sustainable infrastructure (SI), a responsive methodology is required for contractors' selection pro...

Full description

Bibliographic Details
Main Authors: Arowosafe Oluwunmi, Oduyemi Olufolahan, Ceranic Boris, Dean Angela
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:Sustainable Buildings
Subjects:
Online Access:https://doi.org/10.1051/sbuild/2018003
_version_ 1831670518193848320
author Arowosafe Oluwunmi
Oduyemi Olufolahan
Ceranic Boris
Dean Angela
author_facet Arowosafe Oluwunmi
Oduyemi Olufolahan
Ceranic Boris
Dean Angela
author_sort Arowosafe Oluwunmi
collection DOAJ
description Purpose: This paper presents research findings that involve the use of analytic network process (ANP) to select contractors for build–operate–transfer (BOT) infrastructure in Nigeria. To deliver sustainable infrastructure (SI), a responsive methodology is required for contractors' selection process, which combines judgement and data for an effective outcomes prediction. Design/methodology/approach: Theoretically grounded on a system theory, sustainable infrastructure delivery (SID) model has been developed in this study. At the deductive phase of the model is the integration of the ANP (a multicriteria decision-making technique) for data synthesis. To obtain decision criteria, 55 sustainability indicators for contractor selection were identified from the literature review. The criteria were first developed to a web-based questionnaire where respondents were requested to rank the importance of the criteria towards selecting contractors that deliver SI, using Likert scale of 1–5 (where “5” is very important and “1” is not important). The results were analysed using factor analysis. Data were further reduced to 16 variables after multicollinearity issues in the data set had been resolved. To weigh the relative importance of the 16 criteria among contractors, ANP methodology was adopted for the second-round questionnaire. The seven-man decision panel that completed the pairwise comparison survey was selected through a purposeful sampling technique. The final survey results were synthesised by Super Decisions (computer package that implements ANP) trial version to rank contractors' options and predict outcomes. Findings/results: Sensitivity analysis of the research findings reveals that the 16 criteria have differential comparative advantages, which requires critical judgement during contractor's pre-evaluation process. Although the overall priorities rank multinational construction corporations (MCC) higher than local construction companies (LCC), MCC are not absolute to deliver SI. LCC are sensitive to some key criteria that are critical to the actualisation SI agenda. Originality/value: This study fills the gap in the knowledge of SID in Nigeria. The study theoretically suggests a framework to harmonise sustainability indicators in contractor selection. The findings further provide feedbacks that can be incorporated to Government's Ministries, Department and Agencies (MDAs) procurement policy to promote SID.
first_indexed 2024-12-19T23:19:15Z
format Article
id doaj.art-5781d7d98eb84ab399b419d7bed271a1
institution Directory Open Access Journal
issn 2492-6035
language English
last_indexed 2024-12-19T23:19:15Z
publishDate 2018-01-01
publisher EDP Sciences
record_format Article
series Sustainable Buildings
spelling doaj.art-5781d7d98eb84ab399b419d7bed271a12022-12-21T20:02:01ZengEDP SciencesSustainable Buildings2492-60352018-01-013510.1051/sbuild/2018003sbuild180004Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selectionArowosafe OluwunmiOduyemi OlufolahanCeranic BorisDean AngelaPurpose: This paper presents research findings that involve the use of analytic network process (ANP) to select contractors for build–operate–transfer (BOT) infrastructure in Nigeria. To deliver sustainable infrastructure (SI), a responsive methodology is required for contractors' selection process, which combines judgement and data for an effective outcomes prediction. Design/methodology/approach: Theoretically grounded on a system theory, sustainable infrastructure delivery (SID) model has been developed in this study. At the deductive phase of the model is the integration of the ANP (a multicriteria decision-making technique) for data synthesis. To obtain decision criteria, 55 sustainability indicators for contractor selection were identified from the literature review. The criteria were first developed to a web-based questionnaire where respondents were requested to rank the importance of the criteria towards selecting contractors that deliver SI, using Likert scale of 1–5 (where “5” is very important and “1” is not important). The results were analysed using factor analysis. Data were further reduced to 16 variables after multicollinearity issues in the data set had been resolved. To weigh the relative importance of the 16 criteria among contractors, ANP methodology was adopted for the second-round questionnaire. The seven-man decision panel that completed the pairwise comparison survey was selected through a purposeful sampling technique. The final survey results were synthesised by Super Decisions (computer package that implements ANP) trial version to rank contractors' options and predict outcomes. Findings/results: Sensitivity analysis of the research findings reveals that the 16 criteria have differential comparative advantages, which requires critical judgement during contractor's pre-evaluation process. Although the overall priorities rank multinational construction corporations (MCC) higher than local construction companies (LCC), MCC are not absolute to deliver SI. LCC are sensitive to some key criteria that are critical to the actualisation SI agenda. Originality/value: This study fills the gap in the knowledge of SID in Nigeria. The study theoretically suggests a framework to harmonise sustainability indicators in contractor selection. The findings further provide feedbacks that can be incorporated to Government's Ministries, Department and Agencies (MDAs) procurement policy to promote SID.https://doi.org/10.1051/sbuild/2018003sustainable infrastructurepovertyanalytic network processsystembuild–operate–transferNigeria
spellingShingle Arowosafe Oluwunmi
Oduyemi Olufolahan
Ceranic Boris
Dean Angela
Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
Sustainable Buildings
sustainable infrastructure
poverty
analytic network process
system
build–operate–transfer
Nigeria
title Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
title_full Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
title_fullStr Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
title_full_unstemmed Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
title_short Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection
title_sort sustainable infrastructure delivery in nigeria implementation of the analytic network process for contractor selection
topic sustainable infrastructure
poverty
analytic network process
system
build–operate–transfer
Nigeria
url https://doi.org/10.1051/sbuild/2018003
work_keys_str_mv AT arowosafeoluwunmi sustainableinfrastructuredeliveryinnigeriaimplementationoftheanalyticnetworkprocessforcontractorselection
AT oduyemiolufolahan sustainableinfrastructuredeliveryinnigeriaimplementationoftheanalyticnetworkprocessforcontractorselection
AT ceranicboris sustainableinfrastructuredeliveryinnigeriaimplementationoftheanalyticnetworkprocessforcontractorselection
AT deanangela sustainableinfrastructuredeliveryinnigeriaimplementationoftheanalyticnetworkprocessforcontractorselection