Two Approach Guardrail Transitions For Concrete Safety Shape Barriers
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Author | : |
Publisher | : |
Total Pages | : 172 |
Release | : 1998 |
Genre | : Impact |
ISBN | : |
Two approach guardrail transitions for use with concrete safety shape barriers were developed and crash tested. For this study, the transition systems were attached to the New Jersey safety shape concrete barrier; however, it is believed that these transition systems could be easily adapted to the F-shape barrier with no need for further crash testing. Both transition designs were constructed with two nested thrie beam rails measuring 2.66-mm thick. The first transition design was supported by nine W150x13.5 steel posts measuring, 1,981-mm long, while the second transition design was supported by nine 152-mm x 203-mm wood posts measuring 2,134-mm long. For both systems, post spacings consisted on one at 292 mm, five at 476 mm, and three at 952 mm. A triangular-shape concrete curb was constructed below the thrie beam rail on each approach guardrail transition system. The two transition systems successfully met the Test Level 3 requirements specified in NCHRP Report 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features."
Author | : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety |
Publisher | : |
Total Pages | : 560 |
Release | : 1989 |
Genre | : Roads |
ISBN | : |
Author | : Hayes E. Ross |
Publisher | : Transportation Research Board |
Total Pages | : 103 |
Release | : 2002 |
Genre | : Four-wheel drive vehicles |
ISBN | : 0309067502 |
Author | : |
Publisher | : |
Total Pages | : 204 |
Release | : 2003 |
Genre | : Roads |
ISBN | : |
This research study consisted of the development and testing of a short-radius guardrail system for protection of hazards near intersecting roadways and capable of meeting the Test Level 3 (TL-3) impact conditions of the NCHRP Report No. 350 criteria. A short-radius system was designed and consisted of a curved and slotted thrie beam nose section with two adjacent slotted thrie beam sections supported by breakaway posts. One side of the system was attached to a TL-3 steel post transition while the other was attached to a TL-2 end terminal. A series of four full-scale crash tests were conducted on the short-radius guardrail system.
Author | : |
Publisher | : |
Total Pages | : 612 |
Release | : 1998 |
Genre | : Air travel |
ISBN | : |
Author | : American Association of State Highway and Transportation Officials |
Publisher | : AASHTO |
Total Pages | : 275 |
Release | : 2009 |
Genre | : Social Science |
ISBN | : 1560514167 |
Author | : National Research Council (U.S.). Transportation Research Board |
Publisher | : |
Total Pages | : 694 |
Release | : 1988 |
Genre | : Technology & Engineering |
ISBN | : |
Author | : |
Publisher | : AASHTO |
Total Pages | : 142 |
Release | : 2004 |
Genre | : CD-ROMS. |
ISBN | : 1560512717 |
Author | : United States. Federal Highway Administration. Offices of Research and Development |
Publisher | : |
Total Pages | : 640 |
Release | : 1977 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 194 |
Release | : 2010 |
Genre | : Roads |
ISBN | : |