MnDOT Selection of Pavement Surface for Road Rehabilitation: Evaluation Report

The Minnesota Department of Transportation (MnDOT) has a process to determine whether its road rehabilitation projects will be constructed with bituminous or concrete pavements. Minnesota’s pavement industries have questioned that process. In April 2013, the Legislative Audit Commission directed the Office of the Legislative Auditor (OLA) to evaluate MnDOT’s process for selecting pavement type in road rehabilitation projects. OLA found that MnDOT follows many but not all practices recommended in national literature for selecting pavement type. Several recommendations are made to improve MnDOT’s process. For example, OLA recommends that MnDOT estimate certain user costs, such as the costs of time delays to travelers in work zones, over the life cycle of pavement alternatives. OLA also suggests that MnDOT develop a way to more formally consider other factors, such as local government preferences, that affect pavement decisions. Beyond improvements to the process, OLA recommends that the Legislature repeal certain statutory language that has produced misleading life-cycle cost analyses in some cases.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; Tables;
  • Pagination: 97p

Subject/Index Terms

Filing Info

  • Accession Number: 01522262
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 10 2014 2:47PM