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System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods

Cost and time performance are considered to be the most important aspects in the construction industry. The exceptional conditions that took place in Iraq since the beginning of the third millennia had a huge vicious impact on the cost and time performance of local construction projects. This may re...

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Main Authors:	Jing, Wang, Naji, Hafeth Ibrahem, Zehawi, Raquim Nihad, Hasan Ali, Zainab, Al-Ansari, Nadhir, Yaseen, Zaher Mundher
Format:	Article
Language:	English
Published:	MDPI AG 2019
Subjects:	HD Industries. Land use. Labor QA Mathematics TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/25564/1/System%20dynamics%20modeling%20strategy%20for%20civil%20construction%20projects%20.pdf http://umpir.ump.edu.my/id/eprint/25564/ https://doi.org/10.3390/sym11050677 https://doi.org/10.3390/sym11050677
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id	my.ump.umpir.25564
record_format	eprints
spelling	my.ump.umpir.255642019-11-19T08:55:38Z http://umpir.ump.edu.my/id/eprint/25564/ System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods Jing, Wang Naji, Hafeth Ibrahem Zehawi, Raquim Nihad Hasan Ali, Zainab Al-Ansari, Nadhir Yaseen, Zaher Mundher HD Industries. Land use. Labor QA Mathematics TA Engineering (General). Civil engineering (General) Cost and time performance are considered to be the most important aspects in the construction industry. The exceptional conditions that took place in Iraq since the beginning of the third millennia had a huge vicious impact on the cost and time performance of local construction projects. This may represent the principal motivation for the local authorities to enact some four successive legislations in order to control the performance of the construction industry. In this research, an evaluation is made to the cost and time performance of local construction projects and their variation due to the multiple changes in the internal factors that affect project performance, and changes in the surrounding events include legislative, economic, and security environment during the period that lasted from 2003 to 2014. Data is collected from 30 governmental projects to conduct the evaluation. A comprehensive questionnaire is performed to estimate a quantitative value for the impact of several factors that concern both the owner and the contractor, with special consideration to their variation through the successive legislation periods. These estimates are, in turn, utilized in a system dynamics model, in which the project development process is simulated. The final cost and duration changes in the project are accumulated in the form of stocks to give an indication of the cost and time performance of the project. The developed model returned a progressive reduction of 10.9% for the change in project cost and 135.37% for the change in project schedule throughout the eleven years period. MDPI AG 2019-05-01 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/25564/1/System%20dynamics%20modeling%20strategy%20for%20civil%20construction%20projects%20.pdf Jing, Wang and Naji, Hafeth Ibrahem and Zehawi, Raquim Nihad and Hasan Ali, Zainab and Al-Ansari, Nadhir and Yaseen, Zaher Mundher (2019) System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods. Symmetry, 11 (5). pp. 1-18. ISSN 2073-8994 https://doi.org/10.3390/sym11050677 https://doi.org/10.3390/sym11050677
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	HD Industries. Land use. Labor QA Mathematics TA Engineering (General). Civil engineering (General)
spellingShingle	HD Industries. Land use. Labor QA Mathematics TA Engineering (General). Civil engineering (General) Jing, Wang Naji, Hafeth Ibrahem Zehawi, Raquim Nihad Hasan Ali, Zainab Al-Ansari, Nadhir Yaseen, Zaher Mundher System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
description	Cost and time performance are considered to be the most important aspects in the construction industry. The exceptional conditions that took place in Iraq since the beginning of the third millennia had a huge vicious impact on the cost and time performance of local construction projects. This may represent the principal motivation for the local authorities to enact some four successive legislations in order to control the performance of the construction industry. In this research, an evaluation is made to the cost and time performance of local construction projects and their variation due to the multiple changes in the internal factors that affect project performance, and changes in the surrounding events include legislative, economic, and security environment during the period that lasted from 2003 to 2014. Data is collected from 30 governmental projects to conduct the evaluation. A comprehensive questionnaire is performed to estimate a quantitative value for the impact of several factors that concern both the owner and the contractor, with special consideration to their variation through the successive legislation periods. These estimates are, in turn, utilized in a system dynamics model, in which the project development process is simulated. The final cost and duration changes in the project are accumulated in the form of stocks to give an indication of the cost and time performance of the project. The developed model returned a progressive reduction of 10.9% for the change in project cost and 135.37% for the change in project schedule throughout the eleven years period.
format	Article
author	Jing, Wang Naji, Hafeth Ibrahem Zehawi, Raquim Nihad Hasan Ali, Zainab Al-Ansari, Nadhir Yaseen, Zaher Mundher
author_facet	Jing, Wang Naji, Hafeth Ibrahem Zehawi, Raquim Nihad Hasan Ali, Zainab Al-Ansari, Nadhir Yaseen, Zaher Mundher
author_sort	Jing, Wang
title	System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
title_short	System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
title_full	System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
title_fullStr	System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
title_full_unstemmed	System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
title_sort	system dynamics modeling strategy for civil construction projects : the concept of successive legislation periods
publisher	MDPI AG
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25564/1/System%20dynamics%20modeling%20strategy%20for%20civil%20construction%20projects%20.pdf http://umpir.ump.edu.my/id/eprint/25564/ https://doi.org/10.3390/sym11050677 https://doi.org/10.3390/sym11050677
_version_	1651866931157794816
score	13.211869

System dynamics modeling strategy for civil construction projects : the concept of successive legislation periods

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