Owners continue to award more consruction projects under design-build contracts, a new study by the Design-Build Institute of America and consultant FMI concludes. According to the study, if design-build continues growing at the same rate, it will account for $400 billion worth of work in the U.S. by 2025,.

In 11 key non-residential market segments, the delivery method will account for 47% of U.S. construction spending, up from 42% in the five-year period ending in 2020. The study foresees design-build claiming 16% of highway/street work, 15% of school construction and 13% of manufacturing.

Design-bid-build's share of construction spending will fall by 2025, to 15% of construction spending in the segments studied, down from 23% now, the study forecasts.

Competitive best-value selection, the study reports, is the most frequently used way of choosing a design-build contractor. Butprogressive design-build, which involves the design-build contractor and owner in the earliest phases of project development, "continues to be a procurement approach of growing interest across the industry," according to the study.

DBIA首席执行官Lisa Washington说：“当我们的国家考虑历史基础设施投资的通过时，很明显的设计构建将在向我们的社区提供全国最多的时间和成本效益的项目中发挥重要作用。”18luck官网

The study, called the Design-Build Utilization Update, confirms what is generally recognized: that design-build is a permanent major tool for project-delivery and can no longer be classed as an alternative project delivery method to traditional design-bid-build awards.

DBIA has over the years successfully lobbied at the state level for enabling legislation to permit the process to be used for state-funded public works.

According to DBIA's website, 26 states and the District of Columbia now permit use of design-build for all kinds of public projects. North Dakota and Iowa limit its use to one political subdivision, agency or project type. In Wisconsin, Pennsylvania and Alabama, design-build is still a limited public works option. In the others, design-build is "widely permitted," DBIA reports.

Firms that perform $25 million worth of work each year or less are accumulating more experience with the method, according to the study.

在有抵抗力的情况下，地方或区域承包商抗议向大型国家或地区公司授予一个大型设计建设项目的奖励，尤其是在最佳基础上进行的。

科罗拉多州的对手已经努力减少合同奖励made without traditional low-bid pricing. A Nevada company, Las Vegas Paving, which was eliminated as a contender for the prime contract on the large I-15 Tropicana interchange and road project in Las Vegas, recently抱怨价格submitted by the designated likely winner, Kiewit. It is charging $40 million more for its scope of work than a losing proposer. That contract, not yet formally awarded, is being selected in a best-value process.

To assess the design-build market size, FMI consulted public data and modeling of the design-build market by region, interviewed 46 industry stakeholders and conducted an electronic survey of 279 other stakeholders. In addition to highways and streets, education and manufacturing, the study covered commercial, office, transportation, health care, water and wastewater, communications, lodging, amusement and recreation construction.

所有调查受访者中有一半报告说，设计建设超出了项目的预期，四分之三的特征设计建筑体验是良好或出色的。