Comparing State DOTs' Construction Project Cost & Schedule Performance - 28 Best Practices from 9 States

This study provides a succinct overview of twenty-eight good practices applied among nine state departments of transportation (DOTs) that outperform their peers in constructing projects within expected cost amounts and schedules. It is based on a detailed analysis of the performance by 20 states in completing more than 26,500 projects over a five year period between 2001 and 2005. The study was initiated in September 2006 at the request of AASHTO’s Standing Committee on Quality, as part of a broader effort to encourage DOTs to compare performance among peers. The study focuses on the construction phase of project delivery, during which adherence to cost and schedule is particularly important. In schedule terms, construction is when the public, as one participating DOT attests, expects their state transportation agency to “get in, get out, and stay out,” while in budget terms, a project construction cost overrun directly affects the agency’s ability to deliver a promised slate of projects on time. The foundations for the study are simple cost and schedule measures – variations of “was the project built for the expected cost,” and “was the project built on the expected schedule?” They are already used by most DOTs, but performance results are rarely shared. In the study, these measures are applied to carefully reviewed data supplied by state DOTs themselves that is as close to “apples to apples” as possible. To maintain states’ anonymity on this sensitive topic, the results comparing states identify only the top performer(s) for each measure by name.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures;
  • Pagination: 28p

Subject/Index Terms

Filing Info

  • Accession Number: 01673838
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP Project 20-24, Project 37
  • Files: TRIS
  • Created Date: Jun 13 2018 12:21PM