An Integrated System for Design/Build Firms to Solve Cost Estimation Problems in the Design Phase

Kanoglu, Alaattin

doi:10.1080/00038628.2003.9696962

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…DB had achieved a success in different applications. It has been compared with other project delivery systems since design and construction groups are part of the same organization and typically cooperate to complete the project within the predefined cast, time and quality limitations [25]. Some other positive reflection accompanied DB is safety within the construction sites, especially if the contractor was selected carefully with a goal of selecting a one with a good safety record, which may lower the chance of having an accident on jobsite which may lead to bad publicity and other negative consequences [26].…”

Section: Going Dbmentioning

confidence: 99%

ENHANCING THE PROJECT DELIVERY QUALITY; LEAN CONSTRUCTION CONCEPTS OF DESIGN-BUILD & DESIGN-BID-BUILD METHODS

Katar¹

2019

IJM

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Project delivery quality (PDQ) is a potential target of the construction team, which is working on enhancing this quality thru project stages: design and construction. A very important side of this work is study and research to investigate the critical factors affecting PDQ. Some former studies uncovered that the delivery methods: Design-Build (DB) and Design-Bid-Build (DBB) notably affecting PDQ. A study appraised the mentioned methods among several features, such as: time, communication, drawings …etc. This paper assumes that there are other critical features to be studied as it's believed to complete the appraisal among DB and DBB. The aim of this paper is to get sound results for deciding which of them will contribute in enhancing PDQ. The paper will run unstructured conversations with design and construction players: owners, consultants (design/supervision), and contractors. They were requested to provide their feedbacks regarding (6) chosen features among DB & DBB. Also, they were asked to justify their scores adding more details. Collected data was organized, tabulated, and analyzed, then discussed, and concluded.Being DB in nature, the involvement of the consultants was easier, as they were contracted to the main contractor (the direct participant in the project), and the contractor also has a closer and earlier involvement of the main contractor in the design process with more consideration of build-ability issues [1].DB is not a new method of project delivery; its roots go back to antiquity. P Thomas mentioned that the pyramids were built though DB, as well as Saint Paul's Cathedral in London, but it fell into disuse in the United States about the time of the Civil War, and gave way to the "new" design-bid-build process through the latter years of the 20th century [2]. Also, he said that the DB delivery of buildings makes it less expensive and more certain that owners will get high performance and sustainability from their new buildings and renovation projects.Although the importance of DB operational differences is widely accepted, there is as yet little agreement of their classification. Different rules and terminologies are used and some of the classifications are contradictory [3]. For example, Janssens D.E.L (1991) and Akintoye A. (1994) consider Design and Manage to be a DB variant [4, 5], while Masterman, J.W.E. (1992), in contrast, refer to Design and Manage as a management-oriented procurement system [6]. Quatman G.W. (2001) and Gransberg D.D et al. (2006) include Bridging as a DB variant [7, 8]. In Beard et al. (2001) classification framework however, Bridging is not regarded as DB, because it is more akin to traditional Design Bid Build and the client/owner is again in the position of warranting the completeness of the design to the bridging contractor [9].Also, it's worth mentioning that The Direct DB process is qualifications-based, which involves the selection of a contractor through negotiation, and the selection of the team is primarily based on qualitative criteria such as past performa...

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Section: Going Dbmentioning

confidence: 99%

ENHANCING THE PROJECT DELIVERY QUALITY; LEAN CONSTRUCTION CONCEPTS OF DESIGN-BUILD & DESIGN-BID-BUILD METHODS

Katar¹

2019

IJM

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“…Moreover, the computational model integrates the estimation processes of duration and cost since the same information is needed for the both processes ( Figure 5). The details of the cost estimation process are explained elsewhere (Kanoglu, 2003).…”

Section: Discussionmentioning

confidence: 99%

An integrated system for duration estimation in design/build projects and organizations

Kanoglu

2003

Engineering, Construction and Architectural Management

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Overruns to planned schedules are common in civil construction projects worldwide. Yet, the construction industry fails to recognize the criticality of the problem; and whilst models have been developed, their lack of adequate sophistication fails to alleviate the problem. Additionally, there is resistance from construction professionals to use such models due to the lack of software integration models and modular functionality. This paper presents a performance-based duration estimation model integrated with an automation system model, MITOS -Multi-phase Integrated Automation System, that was designed primarily for design/build firms. An experience-based computational model is used for the estimation of the duration of construction projects and the performance results are discussed. Electronic Access

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“…The idea of integrating the functional components of a construction organization and computer applications developed for construction is not new. Various research projects such as RATAS -Infrastructure for Computer Integrated Construction (Bjork, 1994), SPACE -Simultaneous Prototyping for an Integrated Construction Environment (Underwood and Alshawi, 1997), ICON -Intelligent Integration of Information in Construction (Brandon et al, 1994), COMMIT -Construction Modeling and Methodologies for Intelligent Information Integration (Rezgui et al, 1998), ATLAS -Architecture, Methodology and Tools for Large Scale Engineering (Bohms et al, 1994), COMBINE -Computer Models for the Building Industry in Europe (Dubois et al, 1995) and MITOS -Multiphase Integrated Automation System for Construction (Kanoglu, 2000) that attempt to solve the integration problem can be found in literature. But none of these studies was specifically developed to deal with the design process in the construction project.…”

Section: Introductionmentioning

confidence: 99%

A computer‐based information system for architectural design offices

Kanoglu

Arditi

2001

Construction Innovation

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Obtaining, handling and distributing information among participants in the building design process has become more difficult with increasing project complexity. In individual areas such as scheduling, estimating and drafting, it is possible to have access to computerized tools but it is clear that there is a gap in architects' offices regarding the integration of these tools into a unified system. Architects work closely with engineers, clients, suppliers, and public authorities. Managing the information flow among these participants may not be much of a problem in small offices. But the larger architectural offices face serious management-related problems in the design process because of the lack of an efficient information system. This paper presents a computer-based information system called ASAP that was developed to respond to the stated problem of large architectural offices. The conceptual framework as well as a description of the prototype are presented in this paper.

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An Integrated System for Design/Build Firms to Solve Cost Estimation Problems in the Design Phase

Cited by 4 publications

References 26 publications

ENHANCING THE PROJECT DELIVERY QUALITY; LEAN CONSTRUCTION CONCEPTS OF DESIGN-BUILD & DESIGN-BID-BUILD METHODS

ENHANCING THE PROJECT DELIVERY QUALITY; LEAN CONSTRUCTION CONCEPTS OF DESIGN-BUILD & DESIGN-BID-BUILD METHODS

An integrated system for duration estimation in design/build projects and organizations

A computer‐based information system for architectural design offices

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