Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)

Complexity is very high in construction project and constrained by money and time. Change orders are commonly required during the execution of construction projects. They may increase, omit or adjust tasks in the project. Change orders affect the performance of construction job because they disturb...

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Main Authors: Murat Gunduz, Khaled Omar Mohammad
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2020-01-01
Series:Technological and Economic Development of Economy
Subjects:
Online Access:https://journals.vgtu.lt/index.php/TEDE/article/view/11262
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author Murat Gunduz
Khaled Omar Mohammad
author_facet Murat Gunduz
Khaled Omar Mohammad
author_sort Murat Gunduz
collection DOAJ
description Complexity is very high in construction project and constrained by money and time. Change orders are commonly required during the execution of construction projects. They may increase, omit or adjust tasks in the project. Change orders affect the performance of construction job because they disturb current jobs and affect their schedule. The motive behind this study is to outline a complete assessment on change orders impacts. A review on past studies was performed to capture change order factors that affect project performance. Literature review and interviews with the industry professionals were used to finalize the factors into 16 critical factors. A questionnaire was distributed to industry specialists to capture the effect of these 16 factors on project performance. Complete answers of 102 surveys were received. Analytic Hierarchy Process (AHP) and Relative Important Index (RII) were utilized to analyze the responses. This study differs from other past studies by studying change order impact factors on three different change order types namely additional, omission and substitutional works. The most important change orders impacts factors as per the analysis outcomes are increased project management efforts, increased project re-planning, loss of efficiency due to work interruption, increased reworks/demolition works and delay of payments. This paper would help construction professionals to recognize change order impacts and would assist them in taking proactive actions to limit these impacts. First published online 19 November 2019
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spelling doaj.art-f60ec04301134573934e301cf9fd60fa2022-12-22T04:16:47ZengVilnius Gediminas Technical UniversityTechnological and Economic Development of Economy2029-49132029-49212020-01-0126110.3846/tede.2019.11262Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)Murat Gunduz0Khaled Omar Mohammad1Department of Civil Engineering, Qatar University, P.O. Box: 2713 Doha, QatarDepartment of Civil Engineering, Qatar University, P.O. Box: 2713 Doha, QatarComplexity is very high in construction project and constrained by money and time. Change orders are commonly required during the execution of construction projects. They may increase, omit or adjust tasks in the project. Change orders affect the performance of construction job because they disturb current jobs and affect their schedule. The motive behind this study is to outline a complete assessment on change orders impacts. A review on past studies was performed to capture change order factors that affect project performance. Literature review and interviews with the industry professionals were used to finalize the factors into 16 critical factors. A questionnaire was distributed to industry specialists to capture the effect of these 16 factors on project performance. Complete answers of 102 surveys were received. Analytic Hierarchy Process (AHP) and Relative Important Index (RII) were utilized to analyze the responses. This study differs from other past studies by studying change order impact factors on three different change order types namely additional, omission and substitutional works. The most important change orders impacts factors as per the analysis outcomes are increased project management efforts, increased project re-planning, loss of efficiency due to work interruption, increased reworks/demolition works and delay of payments. This paper would help construction professionals to recognize change order impacts and would assist them in taking proactive actions to limit these impacts. First published online 19 November 2019https://journals.vgtu.lt/index.php/TEDE/article/view/11262change ordersconstruction industryanalytic hierarchy processrelative importance index
spellingShingle Murat Gunduz
Khaled Omar Mohammad
Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
Technological and Economic Development of Economy
change orders
construction industry
analytic hierarchy process
relative importance index
title Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
title_full Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
title_fullStr Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
title_full_unstemmed Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
title_short Assessment of change order impact factors on construction project performance using analytic hierarchy process (AHP)
title_sort assessment of change order impact factors on construction project performance using analytic hierarchy process ahp
topic change orders
construction industry
analytic hierarchy process
relative importance index
url https://journals.vgtu.lt/index.php/TEDE/article/view/11262
work_keys_str_mv AT muratgunduz assessmentofchangeorderimpactfactorsonconstructionprojectperformanceusinganalytichierarchyprocessahp
AT khaledomarmohammad assessmentofchangeorderimpactfactorsonconstructionprojectperformanceusinganalytichierarchyprocessahp