Constructability Reviews Utilization Across Alternative Project Delivery Methods

State Transportation Agencies (STAs) recognized that to enhance the quality of construction documents, a review process must be incorporated into the project planning, design and procurement to evaluate projects for constructability. The benefits promised by constructability reviews (CRs) encouraged STAs to adopt it as part of their operations. STAs have recognized that to overcome construction knowledge shortages under the traditional design-bid-build (DBB) delivery method, more emphasis must be placed towards alternative project delivery methods (APDMs). As such, design-build (DB) and construction manager/general contractor (CM/GC) are among the APDMs most utilized by STAs to deliver transportation projects. In spite of that extensive research has investigated project performance under APDMs, similar research with respect to CRs implementation is remarkably absent. This study examines the effective CR utilization and staffing practices adopted by STAs across DBB, DB and CM/GC projects. The results of this study are drawn utilizing data collected through a national survey questionnaire and case studies with selected STAs. The study found that, for projects of similar characteristics, CRs are initiated and implemented in proportionally similar phases across DBB, DB and CM/GC projects. Some STAs adopt a combined CR approach, where all reviewers review the plans together, while others adopt a partitioned CR approach. Investigations of staffing needs revealed that while the agency holds the executive role in implementation of CRs on DBB projects, their role shift on APDMs to become more administrative. The results of this study are anticipated to help STAs in their efforts to formalize constructability review processes (CRPs) across APDMs.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 18p

Subject/Index Terms

Filing Info

  • Accession Number: 01763704
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-03506
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:09AM