SURVEY OF GUARDRAIL END TREATMENT USAGE. INTERIM REPORT
Whenever a guardrail terminates within the clear zone, a crashworthy end treatment is required. To be crashworthy, the end-treatment should not spear, vault, or roll a vehicle during a head-on impact while maintaining vehicle decelerations below recommended limits. As a means of determining types of end treatments currently used in various states and criteria to determine what type to use, a survey letter was sent to each state. It was found that, generally, the preferred method to use to end roadside steel beam guardrail is to bury the end in a cut slope. When this is not feasible, either a Breakaway Cable Terminal (BCT) or turned-down end treatment is generally used. Recommendations were made concerning the type of end treatments which should be used in Kentucky for roadside steel beam guardrail. A design for a turned-down end treatment was proposed.
- Record URL:
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Corporate Authors:
University of Kentucky, Lexington
Kentucky Transportation Center
College of Engineering, 176 Raymond Building
Lexington, KY United States 40506-0281Kentucky Transportation Cabinet
State Office Building, 200 Mero Street
Frankfort, KY United States 40622Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Pigman, J G
- Agent, K R
- Publication Date: 1983-10
Media Info
- Pagination: 93 p.
Subject/Index Terms
- TRT Terms: Breakaway supports; Crashworthiness; Data collection; Design; Guardrail terminals; States; Surveys
- Uncontrolled Terms: Breakaway cable terminals
- Old TRIS Terms: Turned-down end treatment
- Subject Areas: Design; Highways; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;
Filing Info
- Accession Number: 00468477
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA/UKTRP-83-23
- Contract Numbers: KYHPR-82-90
- Files: TRIS, USDOT, STATEDOT
- Created Date: May 31 1988 12:00AM