The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform

Douglas D. Gransberg - One of the best experts on this subject based on the ideXlab platform.

  • Public Project Construction Manager-at-Risk Contracts: Lessons Learned from a Comparison of Commercial and Infrastructure Projects
    Journal of Legal Affairs and Dispute Resolution in Engineering and Construction, 2020
    Co-Authors: Nils J. Gransberg, Douglas D. Gransberg
    Abstract:

    AbstractThe primary benefits of Construction Manager-at-risk (CMAR) project delivery are associated with increasing the ultimate constructability of a project by bringing the Construction contracto...

  • critical comparison of progressive design build and Construction Manager general contractor project delivery methods
    Transportation Research Record, 2019
    Co-Authors: Douglas D. Gransberg, Keith R Molenaar
    Abstract:

    Progressive design-build (PDB) is an emerging variation of alternative contracting methods (ACMs) in the highway Construction industry. It is widely used in water/wastewater and airport projects, b...

  • exploration of early work packaging in Construction Manager general contractor highway projects
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Mounir El Asmar, Dean Papajohn, Keith R Molenaar
    Abstract:

    State agencies have been successfully implementing Construction Manager–general contractor (CM-GC) delivery on highway projects. Although early work packaging is frequently cited in the literature as a primary benefit of CM-GC projects, there is limited research to substantiate or refute these benefits. In addition, agencies need a better understanding of the current state of the practice of early work packaging in the CM-GC process to help with effective implementation. In an ongoing FHWA research project, 12 of 34 completed CM-GC projects reported the use of early work packaging; these projects will be the focus of this study. Research methods used within this study include literature review, content review of agency manuals and instructions, project surveys, agency interviews, and case studies. Triangulated findings suggest that early work packaging can contribute to expediting project completion, mitigating project risk, reducing project cost, and minimizing public impacts. To achieve these outcomes, ...

  • comparison of qualifications based selection and best value procurement for Construction Manager general contractor highway Construction
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Arthur L C Antoine, Keith R Molenaar
    Abstract:

    Faster project delivery and the infusion of contractor knowledge into design are the primary drivers for choosing Construction Manager–general contractor (CM-GC) project delivery. This study focuses on the use of qualifications-based selection (QBS) and best-value (BV) procurement approaches, how and why agencies use each approach, and their associated opportunities and obstacles. Data for this study were obtained from a majority of federally funded CM-GC projects completed between 2004 and 2015. It was found that the use of BV procurement versus QBS procurement had no statistically significant difference in project characteristics or in performance of the projects in the data set. The choice of BV or QBS procurement coincided with an agency’s CM-GC stage of organizational development and influences of nonagency stakeholders on the CM-GC process. When agencies and the local industry were new to CM-GC, they were found to use BV procurement because it is closer to the traditional procurement culture and is ...

  • Comparison of Qualifications-Based Selection and Best-Value Procurement for Construction Manager–General Contractor Highway Construction
    Transportation Research Record: Journal of the Transportation Research Board, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Arthur Antoine, Keith R Molenaar
    Abstract:

    Faster project delivery and the infusion of contractor knowledge into design are the primary drivers for choosing Construction Manager–general contractor (CM-GC) project delivery. This study focuses on the use of qualifications-based selection (QBS) and best-value (BV) procurement approaches, how and why agencies use each approach, and their associated opportunities and obstacles. Data for this study were obtained from a majority of federally funded CM-GC projects completed between 2004 and 2015. It was found that the use of BV procurement versus QBS procurement had no statistically significant difference in project characteristics or in performance of the projects in the data set. The choice of BV or QBS procurement coincided with an agency’s CM-GC stage of organizational development and influences of nonagency stakeholders on the CM-GC process. When agencies and the local industry were new to CM-GC, they were found to use BV procurement because it is closer to the traditional procurement culture and is perceived to result in a fair market project price. Alternatively, agencies and local industry partners with an established history of using CM-GC projects were found to choose QBS procurement. Because of the low level of design at the time of procurement, assumptions relating to risk, production rates, materials sources, and other aspects may be too preliminary to secure a reliable price. The use of BV procurement was found to pose a risk to innovation and to increase negotiation efforts. Qualitative trends from the project data, interviews, and the literature point to agencies using QBS procurement for the majority of CM-GC projects and BV procurement for CM-GC projects with lesser complexity or more highly developed designs at the time of selection.

Keith R Molenaar - One of the best experts on this subject based on the ideXlab platform.

Douglas Alleman - One of the best experts on this subject based on the ideXlab platform.

  • exploration of early work packaging in Construction Manager general contractor highway projects
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Mounir El Asmar, Dean Papajohn, Keith R Molenaar
    Abstract:

    State agencies have been successfully implementing Construction Manager–general contractor (CM-GC) delivery on highway projects. Although early work packaging is frequently cited in the literature as a primary benefit of CM-GC projects, there is limited research to substantiate or refute these benefits. In addition, agencies need a better understanding of the current state of the practice of early work packaging in the CM-GC process to help with effective implementation. In an ongoing FHWA research project, 12 of 34 completed CM-GC projects reported the use of early work packaging; these projects will be the focus of this study. Research methods used within this study include literature review, content review of agency manuals and instructions, project surveys, agency interviews, and case studies. Triangulated findings suggest that early work packaging can contribute to expediting project completion, mitigating project risk, reducing project cost, and minimizing public impacts. To achieve these outcomes, ...

  • roles and responsibilities of independent cost estimator in Construction Manager general contractor highway Construction
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Richard B. Duval, Keith R Molenaar
    Abstract:

    The use of Construction Manager–general contractor (CM-GC) project delivery is gaining momentum with highway projects across the United States. This project delivery process is different from the traditional design–bid–build (D-B-B) process in that an agency works with one CM-GC to develop the Construction cost. To ensure that agencies receive fair market value, many agencies employ an independent cost estimator (ICE) in lieu of competitive bidding. The findings of a research effort to explore ICE roles, responsibilities, and best practices within highway Construction are presented. The findings were derived through a review of previous literature, current agency CM-GC ICE policies, surveys of 25 completed CM-GC projects, and in-depth interviews with highway agency officials on six of the projects. The six projects were selected for interviews from the set of completed projects to allow for cross-case comparison. Although multiple best practices are identified, the two key findings of the research are tha...

  • comparison of qualifications based selection and best value procurement for Construction Manager general contractor highway Construction
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Arthur L C Antoine, Keith R Molenaar
    Abstract:

    Faster project delivery and the infusion of contractor knowledge into design are the primary drivers for choosing Construction Manager–general contractor (CM-GC) project delivery. This study focuses on the use of qualifications-based selection (QBS) and best-value (BV) procurement approaches, how and why agencies use each approach, and their associated opportunities and obstacles. Data for this study were obtained from a majority of federally funded CM-GC projects completed between 2004 and 2015. It was found that the use of BV procurement versus QBS procurement had no statistically significant difference in project characteristics or in performance of the projects in the data set. The choice of BV or QBS procurement coincided with an agency’s CM-GC stage of organizational development and influences of nonagency stakeholders on the CM-GC process. When agencies and the local industry were new to CM-GC, they were found to use BV procurement because it is closer to the traditional procurement culture and is ...

  • Exploration of Early Work Packaging in Construction Manager–General Contractor Highway Projects
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Douglas D. Gransberg, Mounir El Asmar, Dean Papajohn, Keith R Molenaar
    Abstract:

    State agencies have been successfully implementing Construction Manager–general contractor (CM-GC) delivery on highway projects. Although early work packaging is frequently cited in the literature as a primary benefit of CM-GC projects, there is limited research to substantiate or refute these benefits. In addition, agencies need a better understanding of the current state of the practice of early work packaging in the CM-GC process to help with effective implementation. In an ongoing FHWA research project, 12 of 34 completed CM-GC projects reported the use of early work packaging; these projects will be the focus of this study. Research methods used within this study include literature review, content review of agency manuals and instructions, project surveys, agency interviews, and case studies. Triangulated findings suggest that early work packaging can contribute to expediting project completion, mitigating project risk, reducing project cost, and minimizing public impacts. To achieve these outcomes, ...

  • Roles and Responsibilities of Independent Cost Estimator in Construction Manager–General Contractor Highway Construction
    Transportation Research Record, 2017
    Co-Authors: Douglas Alleman, Richard B. Duval, Keith R Molenaar
    Abstract:

    The use of Construction Manager–general contractor (CM-GC) project delivery is gaining momentum with highway projects across the United States. This project delivery process is different from the traditional design–bid–build (D-B-B) process in that an agency works with one CM-GC to develop the Construction cost. To ensure that agencies receive fair market value, many agencies employ an independent cost estimator (ICE) in lieu of competitive bidding. The findings of a research effort to explore ICE roles, responsibilities, and best practices within highway Construction are presented. The findings were derived through a review of previous literature, current agency CM-GC ICE policies, surveys of 25 completed CM-GC projects, and in-depth interviews with highway agency officials on six of the projects. The six projects were selected for interviews from the set of completed projects to allow for cross-case comparison. Although multiple best practices are identified, the two key findings of the research are tha...

Kamran Ghavamifar - One of the best experts on this subject based on the ideXlab platform.

  • selection of project delivery method in transit drivers and objectives
    Journal of Management in Engineering, 2011
    Co-Authors: Ali Touran, Keith R Molenaar, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    This paper describes the results of research on alternative project delivery methods in transit projects in the United States. The research, sponsored by the Transit Cooperative Research Program, aimed to identify those factors that drive the decision in the choice of project delivery method. A rigorous case study analysis based on on-site structured interviews with the directors of several transit projects was used to identify decision drivers and the rationale behind the delivery method selection decision in transit agencies. The nine case studies conducted in this research represent a cross section of delivery methods, including design-bid-build/multiprime, Construction Manager-at-risk, design/build, and design/build-operate-maintain. The interviewees agreed that the use of alternative delivery methods have resulted in savings in schedule and cost for transit agencies. The research also found that achieving aggressive schedule compression is the most influential factor when selecting alternative delive...

  • decision support system for selection of project delivery method in transit
    Transportation Research Record, 2009
    Co-Authors: Ali Touran, Keith R Molenaar, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    A decision support system was developed to help transit agencies evaluate and choose the most appropriate project delivery method for their capital projects. The system considers the traditional design-bid-build, Construction Manager-at-risk, design-build, and design-build-operate-maintain delivery methods. A set of 24 pertinent issues that can affect the choice of project delivery method are identified and described. The described decision support system consists of two distinct tiers. The first tier is a qualitative assessment in which the decision maker evaluates the effectiveness of each delivery method for dealing with the relevant pertinent issues. This tier will help agencies determine if there is a dominant or obvious choice of project delivery method. If at the end of this stage a clear choice is not evident, the user will move to the second tier, where a weighted matrix is used to score competing alternatives. The system will also provide a structure for documenting the project delivery decision...

  • A Guidebook for Selecting Airport Capital Project Delivery Methods - A Guidebook for Selecting Airport Capital Project Delivery Methods
    ACRP Report, 2009
    Co-Authors: Ali Touran, Keith R Molenaar, Payam Bakhshi, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    This guidebook describes various project delivery methods for major airport capital projects. The guidebook also evaluates the impacts, advantages, and disadvantages of these various project delivery methods. The project delivery methods discussed include design-bid-build (DBB), Construction Manager at risk (CMR), and design-build (DB). The guidebook offers a two-tiered project delivery selection framework that may be used by owners of airport projects to evaluate the pros and cons of each delivery method and select the most appropriate method for their project. Tier 1 is an analytical delivery decision approach that is designed to help the user understand the attributes of each project delivery method and whether the delivery method is appropriate for their specific circumstance. Tier 2 uses a weighted-matrix delivery decision approach that allows users to prioritize their objectives and, based on the prioritized objectives, select the delivery method that is best suited for their project. The report will be helpful to airports with determining the most appropriate project delivery methods (e.g., DBB, DB, or CMR) for various types of airport capital projects.

Ali Touran - One of the best experts on this subject based on the ideXlab platform.

  • selection of project delivery method in transit drivers and objectives
    Journal of Management in Engineering, 2011
    Co-Authors: Ali Touran, Keith R Molenaar, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    This paper describes the results of research on alternative project delivery methods in transit projects in the United States. The research, sponsored by the Transit Cooperative Research Program, aimed to identify those factors that drive the decision in the choice of project delivery method. A rigorous case study analysis based on on-site structured interviews with the directors of several transit projects was used to identify decision drivers and the rationale behind the delivery method selection decision in transit agencies. The nine case studies conducted in this research represent a cross section of delivery methods, including design-bid-build/multiprime, Construction Manager-at-risk, design/build, and design/build-operate-maintain. The interviewees agreed that the use of alternative delivery methods have resulted in savings in schedule and cost for transit agencies. The research also found that achieving aggressive schedule compression is the most influential factor when selecting alternative delive...

  • decision support system for selection of project delivery method in transit
    Transportation Research Record, 2009
    Co-Authors: Ali Touran, Keith R Molenaar, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    A decision support system was developed to help transit agencies evaluate and choose the most appropriate project delivery method for their capital projects. The system considers the traditional design-bid-build, Construction Manager-at-risk, design-build, and design-build-operate-maintain delivery methods. A set of 24 pertinent issues that can affect the choice of project delivery method are identified and described. The described decision support system consists of two distinct tiers. The first tier is a qualitative assessment in which the decision maker evaluates the effectiveness of each delivery method for dealing with the relevant pertinent issues. This tier will help agencies determine if there is a dominant or obvious choice of project delivery method. If at the end of this stage a clear choice is not evident, the user will move to the second tier, where a weighted matrix is used to score competing alternatives. The system will also provide a structure for documenting the project delivery decision...

  • A Guidebook for Selecting Airport Capital Project Delivery Methods - A Guidebook for Selecting Airport Capital Project Delivery Methods
    ACRP Report, 2009
    Co-Authors: Ali Touran, Keith R Molenaar, Payam Bakhshi, Douglas D. Gransberg, Kamran Ghavamifar
    Abstract:

    This guidebook describes various project delivery methods for major airport capital projects. The guidebook also evaluates the impacts, advantages, and disadvantages of these various project delivery methods. The project delivery methods discussed include design-bid-build (DBB), Construction Manager at risk (CMR), and design-build (DB). The guidebook offers a two-tiered project delivery selection framework that may be used by owners of airport projects to evaluate the pros and cons of each delivery method and select the most appropriate method for their project. Tier 1 is an analytical delivery decision approach that is designed to help the user understand the attributes of each project delivery method and whether the delivery method is appropriate for their specific circumstance. Tier 2 uses a weighted-matrix delivery decision approach that allows users to prioritize their objectives and, based on the prioritized objectives, select the delivery method that is best suited for their project. The report will be helpful to airports with determining the most appropriate project delivery methods (e.g., DBB, DB, or CMR) for various types of airport capital projects.