GUARDRAIL AND GUARDRAIL TERMINALS INSTALLED OVER CURBS - PHASE II

A barrier system was developed for installation where W-beam is placed over curbs. The guardrail design was constructed with two 2.66-mm (12-gauge) thick nested W-beam rails totaling 26.67 m in length. The nested W-beam rail was supported by fifteen W152 x 13.4 steel posts, each measuring 1,830 mm long. Post spacings were 1.905 mm on center. The concrete curb was a type "G" curb that measured 203 mm wide x 102 mm high x 19.05 m long. The research study included full-scale vehicle crash testing, using a 3/4-ton pickup truck. The full-scale test, impacting at a speed of 100.3 km/hr and an angle of 28.6 deg, was conducted and reported in accordance with the requirements specified in NCHRP Report No. 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features." The safety performance of the guardrail/curb combination barrier system was determined to be acceptable according to the Test Level 3 (TL-3) evaluation criteria specified in NCHRP Report No. 350.

• Corporate Authors:

  University of Nebraska, Lincoln

  Midwest Roadside Safety Facility
  2200 Vine Street, Whittier Building
  Lincoln, NE  United States  68583-0853

  Nebraska Department of Roads

  1500 Highway 2, P.O. Box 94759
  Lincoln, NE  United States  68509

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Polivka, K A
  • Faller, R K
  • Sicking, D L
  • Rohde, J R
  • Reid, J D
  • Holloway, J C
• Publication Date: 2001-11-5

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Crash tests; Curbs; Design; Guardrail terminals; Guardrails; Pickup trucks; Posts; Spacing; Speed
• Identifier Terms: National Cooperative Highway Research Program; NCHRP Report 350
• Uncontrolled Terms: Impact angle; W beams
• Subject Areas: Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00921496
• Record Type: Publication
• Report/Paper Numbers: TRP-03-105-00,, Final Report
• Contract Numbers: SPR-3(017)
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Mar 12 2002 12:00AM