Evaluation of the Performance of California Projects Delivered Using Design-Sequencing

This paper details the analysis of the California Department of Transportation’s Design-Sequencing (DS) project delivery pilot program. DS differs from traditional project delivery in that the construction contract is awarded to the low bidder based on an initial bid package where the design has been advanced to roughly 30% completion. This permits construction to proceed before design is complete without the agency giving up control over the details of design. The paper compares six DS projects worth $16 million with nine similar projects delivered using design-bid-build totaling $16 million using nine schedule, cost, and contract administration performance criteria. The paper finds that DS project delivery provides a viable mechanism to accelerate project completion by starting construction before design is complete. It also finds that DS delivery did not measurably change the cost performance when compared to traditional delivery. The paper recommends that upper management commit to allowing in-house design personnel to focus on DS projects as a higher priority than their routine duties.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFH15 Project Delivery Methods. Alternate title: Evaluation of Performance of California Projects Delivered Using Design-Sequencing.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Dongo, K Joseph
  • Gransberg, Douglas D
  • Tritt, Raymond S
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 14p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Construction management; Construction projects; Contracts; Design bid build; Project delivery; Sequencing
• Identifier Terms: California Department of Transportation
• Uncontrolled Terms: Performance criteria
• Subject Areas: Construction; Highways; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01515052
• Record Type: Publication
• Report/Paper Numbers: 14-1809
• Files: TRIS, TRB, ATRI
• Created Date: Feb 21 2014 3:16PM