Best Practices for Guidelines for Inspection, Repair, and Use of Portable Concrete Barriers in Roadside Safety

The Manual for Assessing Safety Hardware (MASH) implementation agreement allows state transportation agencies to continue the use of portable concrete barriers (PCBs) manufactured on or before December 31, 2019, and successfully tested to National Cooperative Highway Research Program Report 350 or the 2009 edition of MASH, throughout their normal service life. PCBs can incur damage while in transit, in storage, or due to vehicular impact. Often, PCBs can experience damage such as broken or bent connections, cracks, concrete spalling, and more. The American Traffic Safety Services Association developed a basic qualitative guidance for evaluation criteria of such barriers. A few departments of transportation (DOTs) have developed their own guidelines for inspection of PCB segments or evaluation criteria for the acceptability of PCBs. Since no federal guidance has yet been developed to determine life expectancy or acceptability for PCBs, agencies are left to determine whether to repair or replace segments without adequate information, which could lead to unsafe barriers on the National Highway System. There is a need to develop a comprehensive review of best practices of Agencies guidelines which address replacement or repair of PCB segments based on the type and extent of barrier damage.A survey was conducted to complement a throughout literature review of identified guidelines to provide those DOTs in needs with proposed guidelines for inspection, evaluation and repair of PCB segments. This paper summarizes relevant survey findings and proposes future research work to validate developed guidelines for inspection, evaluation, and repair of PCBs.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Maps; Photos; References; Tables;
  • Pagination: 21p

Subject/Index Terms

Filing Info

  • Accession Number: 01764151
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-21-03356
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 23 2020 11:21AM