Comparison of Project Production efficiency between DBB and DB delivery system on Production Frontier

Abstract:

Project Delivery System (PDS) is one of the crucial success factors for construction project. From the perspective of Project Production efficiency, this paper constructed a project production efficiency index system and built the corresponding project production frontier of PDSs for comparing Design-Bid-Build(DBB) and Design-Build(DB) delivery system by applying Production Frontier and Data Envelopment Analysis method. Basing on the comparison of DBB and DB’s efficiency, this paper draw a conclusion that DBB delivery method has advantage in duration, while DB has advantage in cost. On such results, the inner mechanism was further explored, thus to provide a scientific decision- making support for owner’s PDS selection practice.