Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases

Abstract Design-Build (DB) is an alternative project delivery system that has shown to be better in controlling cost growth than the traditional Design-Bid-Build (DBB) system. However, some road administrations are not legally allowed to implement DB and keep using DBB with consequent disadvantages,...

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Autores principales:	Calahorra-Jimenez,María, Alarcón,Luis Fernando, Torres-Machi,Cristina, Chamorro,Alondra, Molenaar,Keith
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2020
Materias:	Cost overruns Road projects Design-bid-build Design-build Content analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200334
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spelling	oai:scielo:S0718-915X20200002003342020-10-04Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phasesCalahorra-Jimenez,MaríaAlarcón,Luis FernandoTorres-Machi,CristinaChamorro,AlondraMolenaar,Keith Cost overruns Road projects Design-bid-build Design-build Content analysis Abstract Design-Build (DB) is an alternative project delivery system that has shown to be better in controlling cost growth than the traditional Design-Bid-Build (DBB) system. However, some road administrations are not legally allowed to implement DB and keep using DBB with consequent disadvantages, such as having high-cost overruns. There is a need, therefore, to provide road administrators delivering DBB projects with research-based mitigation measures that can help them to minimize the main reason for cost overruns. To this end, this study identifies the main reasons for cost overruns in the design, the procurement and the construction phases of DBB road projects and point out to the specific elements of DB project delivery that might help to minimize these reasons. To identify the reasons, an exploratory content analysis was performed on interviews conducted with 41 professionals involved in road project management in Chile. Literature review and document analysis of DB were used to analyze the identified reasons under the framework of the DB practice in the United States. The results showed that four elements based on the DB approach might be used to minimize cost overruns in DBB projects: (1) in the design phase, road administrators should consider the early integration of the constructor’s expertise. In the procurement phase, they should establish (2) instances for effective information exchange and (3) a goal-oriented selection process. Overall, road administrators should consider (4) establishing a one-point of high-level accountability for the design, the procurement, and the construction phases. This study will serve DBB road administrators to start the transition from DBB to more collaborative approaches that will help to minimizer cost overruns and, therefore, to improve the project cost performance.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.19 n.2 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200334en10.7764/rdlc.19.2.334
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cost overruns Road projects Design-bid-build Design-build Content analysis
spellingShingle	Cost overruns Road projects Design-bid-build Design-build Content analysis Calahorra-Jimenez,María Alarcón,Luis Fernando Torres-Machi,Cristina Chamorro,Alondra Molenaar,Keith Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
description	Abstract Design-Build (DB) is an alternative project delivery system that has shown to be better in controlling cost growth than the traditional Design-Bid-Build (DBB) system. However, some road administrations are not legally allowed to implement DB and keep using DBB with consequent disadvantages, such as having high-cost overruns. There is a need, therefore, to provide road administrators delivering DBB projects with research-based mitigation measures that can help them to minimize the main reason for cost overruns. To this end, this study identifies the main reasons for cost overruns in the design, the procurement and the construction phases of DBB road projects and point out to the specific elements of DB project delivery that might help to minimize these reasons. To identify the reasons, an exploratory content analysis was performed on interviews conducted with 41 professionals involved in road project management in Chile. Literature review and document analysis of DB were used to analyze the identified reasons under the framework of the DB practice in the United States. The results showed that four elements based on the DB approach might be used to minimize cost overruns in DBB projects: (1) in the design phase, road administrators should consider the early integration of the constructor’s expertise. In the procurement phase, they should establish (2) instances for effective information exchange and (3) a goal-oriented selection process. Overall, road administrators should consider (4) establishing a one-point of high-level accountability for the design, the procurement, and the construction phases. This study will serve DBB road administrators to start the transition from DBB to more collaborative approaches that will help to minimizer cost overruns and, therefore, to improve the project cost performance.
author	Calahorra-Jimenez,María Alarcón,Luis Fernando Torres-Machi,Cristina Chamorro,Alondra Molenaar,Keith
author_facet	Calahorra-Jimenez,María Alarcón,Luis Fernando Torres-Machi,Cristina Chamorro,Alondra Molenaar,Keith
author_sort	Calahorra-Jimenez,María
title	Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
title_short	Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
title_full	Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
title_fullStr	Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
title_full_unstemmed	Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
title_sort	improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200334
work_keys_str_mv	AT calahorrajimenezmaria improvingcostperformanceindesignbidbuildroadprojectsbymappingthereasonsforcostoverrunsintotheprojectphases AT alarconluisfernando improvingcostperformanceindesignbidbuildroadprojectsbymappingthereasonsforcostoverrunsintotheprojectphases AT torresmachicristina improvingcostperformanceindesignbidbuildroadprojectsbymappingthereasonsforcostoverrunsintotheprojectphases AT chamorroalondra improvingcostperformanceindesignbidbuildroadprojectsbymappingthereasonsforcostoverrunsintotheprojectphases AT molenaarkeith improvingcostperformanceindesignbidbuildroadprojectsbymappingthereasonsforcostoverrunsintotheprojectphases
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Improving cost performance in design-bid-build road projects by mapping the reasons for cost overruns into the project phases

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