MindMap Gallery Project Delivery Methods
This is a mind map about Project Delivery Methods, Main content: References, Construction Management-at-Risk (CMAR), Design-Build (DB), Design-Bid-Build (DBB).The image outlines the collaborative approach where owners, design teams, and construction teams work together to manage risks and improve efficiency during the design and construction phases. It highlights key benefits, concerns, and financial management strategies associated with each method, emphasizing the importance of effective communication and stakeholder involvement.
Edited at 2024-10-02 11:04:33Project Delivery Methods
References
Aiu slides [ Legal and Prof. Aspects of CVE 311 ]
National Institute of Building Sciences. (2020). Project delivery methods: A guide for owners and practitioners. Available online. Access Engineering Library. (2021). Construction practices for land development: A field guide for civil engineers (1st ed.). Retrieved from
Trimble. (n.d.). Project delivery methods. Retrieved from https://projectsight.trimble.com/project-delivery-methods/
Trimble. (n.d.). What is Construction Manager at Risk (CMAR)? Retrieved from https://projectsight.trimble.com/project-delivery-methods/construction-manager-at-risk/
rocore. (2024). Design-bid-build project delivery: What it is & when to choose it. Retrieved from https://www.procore.com/library/design-bid-build-construction
S.M. Levy, Design-build project delivery: managing the building process from
proposal through construction (McGraw-Hill Companies, 2006 Salin, D., & Glover, R. (2012). A guidebook for the evaluation of project delivery methods. Retrieved from https://www.researchgate.net/publication/241808897_A_Guidebook_for_the_Evaluation_of_Project_Delivery_Methods
Conlon Construction. (2024). Construction manager as-agent. Retrieved from https://www.conlonco.com/articles/construction-manager-as-agent#:~:text=The%20Construction%20Manager%20As%2DAgent,%2C%20procurement%2C%20and%20construction%20phases Stone, T. (2021). The pros and cons of five project delivery methods. Neumann Monson Architects. Retrieved from https://neumannmonson.com/blog/pros-and-cons-five-project-delivery-methods
Stone, T. (2021). The pros and cons of five project delivery methods. Neumann Monson Architects. Retrieved from https://neumannmonson.com/blog/pros-and-cons-five-project-delivery-methods GoCodes. (2023). 5 types of construction project delivery methods to choose from. Retrieved from https://gocodes.com/construction-delivery-methods/
American Society of Civil Engineers. (2014). Project delivery systems for construction (1st ed.). ASCE Press. https://doi.org/10.1061/9780784416013
Construction Management-at-Risk (CMAR)
A construction management project delivery approach involves the owner engaging a construction manager (CM) to supervise the project from design to construction completion
owner
construction manager
Design team
Bid
consrtuction company
Benefits
Efficient Communication: The CM is involved in the cooperation from start to finish.
The Construction Manager might adopt a proactive leadership role in the project. and Accurate Work Cost
concerns
This system lacks a direct contract between the designer and contractor, so in order to fix issues, the owner must act as a mediator
The owner is accountable for the efficacy of the design plans.
If the owner fails to find a reliable and experienced CM, the project could fail.
Financial management
Precise cost forecasts and enhanced cost management, ongoing updates to cost estimates, and collaboration with stakeholders to adhere to the Guaranteed Maximum Price (GMP).
Period
timeline delineates the principal phases of the CMAR process, highlighting collaboration, budget oversight, and stakeholder involvement throughout the project lifespan.
Managing risks
CMAR mitigates risk for the owner, as cost overruns are transferred to the CMAR as a distinct organization.
Collaborative approach
augments communication, cultivates teamwork, and adeptly resolves issues, resulting in enhanced project efficiency and success. By emphasizing collaboration, stakeholders may foster a more unified and efficient project environment.
Design-Build Projects
Denver International Airport (DIA)
San Diego International Airport Terminal
University of California,
finalization
CMAR may be inappropriate for projects that are uncomplicated and direct, where the complexity does not warrant its application. Additionally, if collaboration among the owner, architect, engineer, and construction manager is likely to be challenging or if the owner lacks sufficient organizational staffing to support collaboration, CMAR may not be effective. Moreover, in situations where contracts mandate the selection of the lowest bidder, as is common in numerous government contracts, alternate project delivery techniques must to be evaluated.
Design-Build (DB)
A Design-Build contract is a construction project delivery method characterized by a single-point accountability, wherein one general contractor oversees both the design and construction phases of the project. The entire design-build process requires the contractor to execute the project from inception to conclusion.
Owner
Design-Builder
sub-contractors designer
Designer
sub-consultant
Benefits
streamlines the procedure as it functions under one contract
Cost efficient
Fast-tracking project can be done sooner
concerns
Important to choose a knowledgeable design-builder becauseof their responsibilities
The owner has less control.
Owners must psychologically adjust to different distribution methods.
Financial management
The design-build team can strategize to reduce project costs from the outset of the design process.
Period
Design-Build projects exhibit a more rapid project delivery rate compared to conventional design-bid-build projects. The design and construction teams can collaborate to minimize project durations and expedite commissioning.
Managing risks
The owner assumes some risks during both the design and construction phases.
Collaborative approach
Owners, design teams, and construction teams collaborate to develop the best and most cost-effective project solution using the design build technique. Prior to commencing the project, all participants are cognizant of the shared objectives.
Design-Build Projects
Hyatt Regency Convention Center (Portland) LAX Midfield Satellite (Los Angeles) University of Washington (Seattle)
finalization
Ultimately, the Design-Build (DB) approach to project delivery speeds up the process and improves efficiency by bringing the design and construction teams closer together. Integrating these phases mitigates risks and promotes innovation, establishing DB as a preferred option for numerous building projects. This methodology ultimately results in superior quality outputs and enhanced client satisfaction.
Design-Bid-Build (DBB)
owner
Designer architict +engineer
bid
consrtuction company
Benefits
Recognized and familiar to the majority of construction professional
Frequently incurs the minimal initial expenses.
The owner maintains significant influence over the design.
concerns
Architect and general contractor don't interact throughout design, resulting in conflicts and change orders that impede project development.
Owner is liable for designer drawing issues.
Financial management
Deliver periodic financial status reports to stakeholders.
Establish explicit payment schedules associated with project milestones.
Implement consistent spending oversight in relation to the budget.
Establish explicit contracts delineating the scope and payment conditions.
Period
The sequential DBB method's requirement for each participant to fully complete its tasks before proceeding to the next increases the likelihood of project delays.
Managing risks
Design Reviews: Systematic assessments to identify problems promptly. Explicit Contracts: Clearly articulated terms to minimize ambiguities. Contingency Planning: Allocate budget and time buffers for unexpected occurrences.
Collaborative approach
The design-bid-build (DBB) project delivery process has substantial difficulties stemming from insufficient collaboration between contractors and designers. Contractors are engaged only after the design is finalized, restricting their capacity to contribute insights, which may result in inaccuracies and oversights in the design.
Design-Build Projects
Renwick Gallery(Washington)
State Route 99 Tunnel(Seattle)
Renwick Gallery(Washington)
finalization
This method involves an owner initially engaging a designer to finalize the exact blueprints, which are subsequently utilized to obtain bids from contractors. The contractor is chosen from these bids post-design finalization, hence restricting their contribution during the design phase. Although DBB provides a well-defined process with explicit contractual relationships and enables owners to retain substantial control over the design, it also presents disadvantages, including restricted collaboration that may result in errors and inefficiencies, along with possible disputes regarding design interpretations and modifications. Although DBB is extensively employed, improving communication and collaboration may alleviate its intrinsic constraints.
The Design-Bid-Build (DBB) construction delivery method is regarded as the conventional organizational framework for construction projectsIn design-bid-build, construction advances via three sequential phases, Design Bid Build