Project Delivery Method Performance for Public School Construction: Design Bid Build versus CM at Risk
AbstractThe construction of public schools is a complex endeavor due to the involvement of multiple and diverse parties, funding and budgetary concerns, and statutory limitations imposed by local, state, and federal agencies, all of which serve to increase project risk. Project delivery methods using distinctive procedures to manage the design and construction process have been developed to reduce risk and improve project performance. To increase the probability of successful project outcomes, those responsible for public school construction require conclusive delivery method performance data. Completed in 2014, this two year study used actual construction documents from 137 southeastern public schools to analyze and determine project delivery method cost, time, quality, and claims performance. The analysis indicated that performance of the Design Bid Build (DBB) method was significantly superior across all cost metrics, whereas the Construction Manager at Risk (CM at Risk) method produced higher levels o.