This project encapsulates portions of the development of a new crash cushion. It utilizes a rotating drum with band brakes to apply a braking force, via friction, to the vehicle. Then, the band brakes will be released, and a motor will reverse the rotation of the drum to pull the system back into its original position. This resetting will be automated and controlled by a programmable logic controller. It will include communication technology to potentially alert emergency responders about the crash. In addition, it will be able to communicate to the owners of the system and the manufacturer that there has been a crash, and that information can be used in concert with crash records to build a database of performance and permit a true evaluation of its in-service performance (including unreported crashes). Crash testing using a bogey vehicle has been done, as well. This testing demonstrated the proper functionality of the compression and sliding of the crash cushion. It also demonstrated minimal damage to the track, which was a primary design objective. Any damage that was caused by this testing will be designed out of the system in subsequent iterations.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 48p
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01766529
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP IDEA Project 203
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 1 2021 12:01PM