Design Guidelines for TL-3 through TL-5 Roadside Barrier Systems Placed on Mechanically Stabilized Earth (MSE) Retaining Walls

The objective of this research was to develop, in a format suitable for consideration by AASHTO, recommended guidelines for designing roadside barrier systems placed on mechanically stabilized earth (MSE) retaining structures to resist vehicular impact loadings varying from passenger vehicles to heavy trucks. To extend the work done under Project 22-20, this project consisted of engineering analyses, computer modeling, and bogie testing for Test Levels 3 through 5 and included full-scale crash testing of a tractor-van trailer (TL-5) into a barrier placed atop an MSE retaining wall. The guidelines address Test Levels 3 through 5. Specific considerations included defining appropriate design loads, developing procedures for sizing the traffic barrier foundation, and designing the MSE wall when traffic barriers are required.

• Record URL:
  http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=2735

Language

• English

Project

• Status: Completed
• Funding: $610000
• Contract Numbers:

  Project 22-20(02)

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Bush, Mark

• Performing Organizations:

  Texas A&M Research Foundation, College Station

  Texas A&M University
  College Station, TX  United States  77843
• Principal Investigators:

  Bligh, Roger

• Start Date: 20100514
• Expected Completion Date: 20170531
• Actual Completion Date: 20170531

Subject/Index Terms

• TRT Terms: Crash tests; Design load; Highway design; Mechanically stabilized earth; Retaining walls; Tractor trailer combinations; Traffic crashes; Truck crashes
• Uncontrolled Terms: Barrier walls; Impact speed
• Subject Areas: Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01464180
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 22-20(02)
• Files: TRB, RIP
• Created Date: Jan 3 2013 2:37PM