BART selected a DBFO project delivery approach for the Oakland Airport Connector project in part because it provides the design-build team the incentive to build a high-quality system, as the consortium will be responsible for capital reinvestment and system turnover costs over the 35-year span of the O&M contract. In addition, the project is expected to benefit from efficiencies created by direct operation and maintenance by the proprietary owner of the applied automated people mover technology.
The South Florida Commuter Rail Upgrades project is praised for the higher quality of its construction as a result of using a design-build project delivery approach, which enabled the project builders to improve the constructability of the project's design.
The application of design-build provides the opportunity to improve a project by applying a construction technique that is both higher quality and more cost effective. An example is the tunnel ventilation changes suggested to WMATA by the design-builder of the Largo Metrorail Extension.