Performance Comparison of Large Design-Build and Design-Bid-Build Highway Projects

Shrestha, Pramen P.; O’Connor, James T.; Gibson, G. Edward

doi:10.1061/(asce)co.1943-7862.0000390

Cited by 129 publications

(46 citation statements)

References 9 publications

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“…It was concluded that DBB projects have more advantages in cost performance than DB projects, while the schedule performance under DBB is not as good as that under DB, with other performance indicators having no significant gaps between them. Park et al [29] and Shretha et al [30] reached conclusions consistent with Minchin et al through the research on transportation construction projects and large-scale expressway projects. Tran et al [31] were concerned about the differences between expressways with different investment.…”

Section: Project Transaction Mode and Project Performancesupporting

confidence: 55%

An Innovative Method for Project Transaction Mode Design Based on Case-Based Reasoning: A Chinese Case Study

et al. 2018

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Aiming at the design of a project transaction mode, the case-based reasoning (CBR) method is used as a methodology to build a case-based reasoning system based on project performance predictions. Thirty-four cases are initially selected for the practical application. Based on the classical CBR, the performance forecast is added, an improved continuous variable interpolation scoring method is proposed, and three types of manual revision methods are proposed: owner’s preference for the project transaction mode, extreme value, and secondary learning. The innovative method is verified with Nanjing HF Project as an example, and the results show that the case-based reasoning system can optimize the selection and design of the project transaction mode, providing a certain guarantee for project performance and facilitating the transfer of construction experience and knowledge within the construction industry.

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Section: Project Transaction Mode and Project Performancesupporting

confidence: 55%

An Innovative Method for Project Transaction Mode Design Based on Case-Based Reasoning: A Chinese Case Study

et al. 2018

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“…In terms of scheduling, the accelerated schedule has an advantage; and in terms of cost, top benefits included cost certainty in advance and the use of progressive Guaranteed Maximum Price (GMP). Shrestha et al (2012) conducted a performance comparison of 16 DBB and 6 DB large highway projects (greater than $50 million) with respect to cost, schedule, and change orders; they investigated the project characteristics associated with performance as well. The DB projects were selected from the list of FHWA SEP-14 projects, whereas the DBB projects were selected from Texas only.…”

Section: Literature Reviewmentioning

confidence: 99%

Alternative Project Delivery Methods for Water and Wastewater Projects: The Satisfaction Level of Owners

Shrestha¹,

Maharjan²,

Shakya³

et al. 2014

Construction Research Congress 2014

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According to the 2013 Report Card for America's Infrastructure, prepared by American Society of Civil Engineers (ASCE), the drinking water and wastewater infrastructure received grade of 'D'. The American Water Works Association (AWWA) estimated that it would cost about $1 trillion to replace every drinking water pipe in U.S. Further, it would cost about $298 billion over the next 20 years to fix the nation's wastewater and storm water systems. Owners, engineers, and contractors are using alternative project delivery (APD) methods, e.g., construction management-at-risk (CMAR), design-build (DB), construction manager/ general contractor to build water and wastewater projects in order to save time and cost as well as to improve the quality of the projects. In this study, a survey was designed to assess the satisfaction levels of policy makers, project staffs and utility managers regarding various benefits related to APD methods. The surveys were emailed to 455 owners using APD methods in their water and wastewater projects. The study results showed that, on average, owners and project staffs were satisfied with most of the issues related to these delivery methods. Particularly, study results elaborate on the differences in satisfaction levels between respondents involved in CMAR and DB projects.

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“…No significant difference among these methods was discovered from the analysis. Shrestha et al (2011) selected six D-B projects and 16 DBB projects with total design and construction cost greater than $50 million through a systematic process. Multiple criteria were used to evaluate the performance of D-B and DBB, such as contract award cost growth, total cost growth, actual cost per lane distance, total schedule growth, project delivery speed per lane distance, construction speed per lane distance, and cost per change order.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance of seven highway construction contracting methods analyzed by project size

Zhang¹,

Chini²,

Minchin³

et al. 2018

Front. Eng

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The conventional Design-Bid-Build (DBB) construction contracting method has had various drawbacks exposed in highway construction practice, including lack of communication, inefficient design, antagonizing relationships, and increased disputes. To mitigate the negative aspects of DBB, several alternative contracting methods and alternative project delivery systems have been devised and introduced to the industry over the past 30 years. Five such innovations were tested by a research team from the University of Florida under the sponsorship of the Florida Department of Transportation (FDOT). To perform a realistic assessment, this study categorized FDOT projects built between 2006 and 2015 into groups according to current contract amounts. Both absolute and relative metrics were defined and employed. For comparison purposes, a collective analysis on all gathered data was performed. Additionally, the influence of outliers on the results was examined. The results showed that analyses based on individual cost categories are more convincing because large projects tend to impose stronger influence on the analyses. In addition, outliers must be identified and screened to reach realistic and reliable conclusions. With regard to the actual performance of the contracting methods, each performs differently within different cost categories.

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Performance Comparison of Large Design-Build and Design-Bid-Build Highway Projects

Cited by 129 publications

References 9 publications

An Innovative Method for Project Transaction Mode Design Based on Case-Based Reasoning: A Chinese Case Study

An Innovative Method for Project Transaction Mode Design Based on Case-Based Reasoning: A Chinese Case Study

Alternative Project Delivery Methods for Water and Wastewater Projects: The Satisfaction Level of Owners

Performance of seven highway construction contracting methods analyzed by project size

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