Progressive design-build: A streamlined approach to construction

Progressive Design-Build is a project delivery method that merges the design and construction phases of a project into a more integrated and collaborative process. Unlike traditional design-bid-build methods, where design and construction are separate entities, progressive design-build fosters a closer working relationship between the owner, the design-build team, and all other project stakeholders. By streamlining the project lifecycle and fostering collaboration, progressive design-build can result in significant cost savings, improved project schedules, and enhanced quality.

Progressive design-build basics 

In a pdb project, the design-build team works collaboratively from the earliest stages to develop both the design and construction aspects of the project. This integrated approach allows for a more fluid and responsive process, enabling the team to make informed decisions and adjustments throughout the project lifecycle.

What is the difference between traditional design-build and progressive design-build? 

While both traditional design-build and progressive design-build involve a single entity responsible for both design and construction, there are key differences in their approach. 

• Traditional Design-Build: In traditional design-build, the design build project is often divided into distinct phases. The owner may contract the design first, followed by the construction. This approach can lead to delays and increased costs if issues arise during the construction phase. 
   

• Progressive Design-Build: In progressive design-build, the design and construction phases are more closely integrated. The design build team works collaboratively to develop the design and construction plans simultaneously. This allows for earlier identification and resolution of potential issues, leading to a more efficient and cost-effective project.

Unique features of progressive design-build 

• Single Point of Accountability: The design builder is responsible for both the design and construction of the project, providing a single point of contact for the owner.

• Early Involvement: The design build team is involved in the project from the earliest stages, allowing for early input and decision-making.

• Guaranteed Maximum Price (GMP): Many design build contracts include a GMP, which provides the owner with a fixed price for the project, mitigating the risk of cost overruns.

• Collaborative Approach: The design build team works collaboratively to develop the design and budget for the project, ensuring that the project meets the owner's needs and budget.

When to choose progressive design-build 

Progressive design-build is well-suited for a variety of construction projects, including: 

• Complex projects: Projects with complex design requirements or tight deadlines can benefit from the streamlined approach of progressive design-build.

• Fast-track projects: When speed is of the essence, progressive design-build can help to accelerate the project schedule. 

• Projects with limited design details: If the owner does not have a fully developed design at the outset of the project, progressive design-build can allow for the development of the design in collaboration with the construction team. 

Benefits of progressive design-build 

• Saving Time: By streamlining the project lifecycle and fostering collaboration, progressive design-build can result in significant saving time.

• Reduced Costs: The integrated approach of progressive design-build can help to identify and resolve issues early in the project, reducing the risk of costly change orders.

• Improved Quality: The collaborative nature of progressive design-build can lead to a higher quality product.

• Reduced Risk: A GMP can provide the owner with a fixed price for the project, mitigating the risk of cost overruns.

To illustrate the benefits of progressive design-build, let's examine a few real-world case studies: 

The Denver International Airport expansion 

The Denver International Airport expansion project utilized progressive design-build to deliver a new concourse and runway on time and within budget. By fostering collaboration between the design and construction teams, the project was able to identify and address potential issues early in the process, minimizing delays and cost overruns. 

The San Francisco Bay area rapid transit (BART) extension 

The BART extension project employed progressive design-build to deliver a new rail line and stations. The collaborative approach allowed the project team to make informed decisions and adjustments throughout the design and construction phases, resulting in a high-quality project that met the needs of the community. 

Risk management in progressive design-build 

While progressive design-build offers many benefits, it is important to consider the potential risks involved. Effective risk management is essential to ensure the success of a progressive design-build project. Here are some key risk management strategies: 

• Comprehensive risk assessment: Conduct a thorough risk assessment to identify potential risks and their associated impacts. 

• Risk mitigation planning: Develop strategies to mitigate or avoid identified risks. 

• Contingency planning: Establish contingency plans to address unexpected events or changes in project scope. 

• Regular risk monitoring and review: Continuously monitor and review project risks throughout the lifecycle. 

Contract considerations 

The contract is a critical component of a progressive design-build project. It outlines the terms and conditions of the agreement between the owner and the design-build team. Key contract considerations include: 

• Scope of work: Clearly define the scope of work to avoid misunderstandings and disputes. 

• Payment terms: Establish fair and reasonable payment terms, such as milestone payments or progress payments. 

• Dispute resolution: Include provisions for dispute resolution, such as mediation or arbitration. 

• Intellectual property: Address ownership of intellectual property rights, such as designs and drawings. 

By carefully considering these risk management and contract considerations, owners can mitigate risks and ensure the successful delivery of their progressive design-build projects. 

Conclusions 

Progressive design-build is a powerful project delivery method that offers a number of advantages over traditional design bid build. By fostering collaboration between the owner, the design build team, and all other project stakeholders, progressive design-build can result in more efficient, cost-effective, and high-quality projects.

Recommendations 

• Select the design build team carefully. The success of a progressive design-build project depends on the experience and capabilities of the design firm and construction team.

• Develop a clear project scope. A well-defined project scope will help to ensure that the design and construction meet the owner's needs and expectations. 

• Establish a collaborative culture. Foster a collaborative culture among all project stakeholders to facilitate effective communication and decision-making. 

You may also be interested in reading

• Contract management processes
• Ventilation in buildings
• Coastal Engineering: Protecting Our Shorelines
• Building Systems: The Backbone of Modern Structures