Empirical Comparison of Design/Build and Design/Bid/Build Project Delivery Methods

Hale, Darren R.; Shrestha, Pramen P.; Gibson, G. Edward; Migliaccio, Giovanni C.

doi:10.1061/(asce)co.1943-7862.0000017

Cited by 220 publications

(115 citation statements)

References 6 publications

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“…Generally, the methodology of these types of studies consisted of data collection, data mining, performing statistical tests, and making conclusions based on the statistical results. Jahren and Ashe [1], Odeck [2], Roth [4], Konchar and Sanvido [5], Hale et al [9], and Shrestha et al [8] used similar methodologies to conduct their studies regarding project cost and schedule overruns. The steps used in this study are described below.…”

Section: Methodsmentioning

confidence: 99%

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Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

Shrestha

Burns

Shields

2013

Journal of Construction Engineering

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This study analyzed 363 Clark County Department of Public Works (CCDPW) projects to determine construction cost and schedule overruns in various types and sizes of the projects. The sample projects were constructed from 1991 to 2008, with a total construction cost of $1.85 billion, equivalent to 2012 cost. A one-factor ANOVA test was conducted to determine whether construction cost and schedule overruns significantly varied based on types and sizes of the projects. The study showed that large, long-duration projects had significantly higher cost and schedule overruns than smaller, short-duration projects.

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Section: Methodsmentioning

confidence: 99%

“…Various studies [4,5,[8][9][10] have determined the correlation of project delivery methods-for example, design build (DB) and design bid build (DBB)-with cost and schedule overruns. These studies found that cost and schedule overrun were fewer in DB projects than in DBB projects.…”

Section: Literature Reviewmentioning

confidence: 99%

Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

Shrestha

Burns

Shields

2013

Journal of Construction Engineering

Self Cite

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“…Three of these mainstream contracting methods are discussed in turn. Akintoye et al (1998), Gordon (1994), Berends (2000), Kwon et al (2010), Chan et al (2001), Akintoye et al (1994) and Hale et al (2009) 2 Design and build Songer and Molenaar (1996), Chan and Yu (2005) and Gransberg and Senadheera (1999) 3 Warranty Erevelles (1993), Thompson et al (2002), Singh et al (2007), Bayraktar et al (2004) and Harrington et al (1984) 3 Design-build…”

Section: Literature Reviewmentioning

confidence: 99%

Optimal bid model for construction contracts

Siew

2017

IJSRECE

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Construction clients are increasingly calling for bids that require contractors to submit both bid price and highlight sustainability attributes. Contractors are faced with the problem of deciding which combination of bid price and sustainability attributes to submit. An important consideration is the cost of sustainability attributes to the client. This varies between contracts and types of projects. This paper proposes the use of a sustainability unit value which the client can use as a basis for determining the contractor's total combined bid. This kind of procurement method is traditionally known as the A+B method. To illustrate the mechanism of price-sustainability attribute bi-parameter procurement, a total combined ISO-map is developed. The contractor's price-sustainability performance curve is then incorporated into the map to determine the contractor's optimal bid parameters: tender price and sustainability performance. A mathematical optimisation bid model is developed for calculating the optimal bid parameters.

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“…Relationships influence decision-making, which, in turn, affects the end design of an infrastructure project. A contractor working in a design-bid-build procurement arrangement, in which the eventual builder is not hired until the design is complete, will not provide the same input as one working in a design-build arrangement, in which the eventual builder is also contracted to support the design phase [49].…”

Section: Organizational Levelmentioning

confidence: 99%

Choice Architecture as a Way to Encourage a Whole Systems Design Perspective for More Sustainable Infrastructure

2016

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Across fields, more sustainable and resilient outcomes are being realized through a whole systems design perspective, which guides decision-makers to consider the entire system affected including interdependent physical and social networks. Although infrastructure is extremely interdependent, consisting of diverse stakeholders and networks, the infrastructure design and construction process is often fragmented. This fragmentation can result in unnecessary tradeoffs, leading to poor outcomes for certain stakeholders and the surrounding environment. A whole systems design perspective would help connect this fragmented industry and lead to more sustainable outcomes. For example, a whole systems design approach to relieve traffic on a highway might see beyond the obvious, but often ineffective, response of adding a new vehicle lane to encourage a solution such as repurposing existing road lanes from automobiles to above-ground "subway" systems. This paper discusses influences to whole systems design and how intentional choice architecture, meaning the way decisions are posed, can nudge decision-makers to employ whole systems design and result in more sustainable infrastructure. By uncovering these influences and organizing them by the social, organizational, and individual levels of the infrastructure design process, this paper provides the needed foundation for interdisciplinary research to help harness these influences through choice architecture and whole systems design for the infrastructure industry.

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Empirical Comparison of Design/Build and Design/Bid/Build Project Delivery Methods

Cited by 220 publications

References 6 publications

Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

Optimal bid model for construction contracts

Choice Architecture as a Way to Encourage a Whole Systems Design Perspective for More Sustainable Infrastructure

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