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Publication Number: FHWA-RD-99-076
Date: December 1999

NCHRP Report 350 Test 4-11 of the New York Two-Rail Curbless Bridge Railing

 

 

FOREWORD

This report will be of interest to researchers and those who select, locate, and design traffic barriers. It documents the results of a crash test of a New York Two–Rail Bridge Rail. This was the second test of a series intended to evaluate this new bridge rail design. The objective was to see if it meets Test Level Four (TL–4) in NCHRP Report 350. In this test, a 2000–kg pickup truck impacted the bridge rail at a nominal speed and angle of 100 km/h and 25 degrees. The bridge rail contained the vehicle and redirected it. At this time there is no widely accepted measure of occupant risks associated with deformations or intrusions into the passenger compartment. Of necessity, this factor must be assessed in large part by the judgement of the test agency and the user agency, or both. The researchers have concluded that this bridge rail did not meet evaluation criteria D and K for Test No. 4–11 in NCHRP Report 350 due to separation in the floor plan and excessive deformation of the occupant compartment.

Michael F. Trentacoste
Michael F. Trentacoste
Director, Office of Safety
Research and Development

 

NCHRP Report 350 Test 4-11 of the New York Two-Rail Curbless Bridge Railing

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TECHNICAL REPORT DOCUMENTATION PAGE

1. Report No.

FHWA–RD–99–076

2. Government Accession No. 3. Recipient's Catalog No.
4. Title and Subtitle

NCHRP Report 350 Test 4–11 of the New York Two–Rail Curbless Bridge Railing

5. Report Date
6. Performing Organization Code
7. Author(s)

C. Eugene Buth, William F. Williams, Wanda L. Menges, and Sandra K. Schoeneman

8. Performing Organization Report No.

404531–2

9. Performing Organization Name and Address

Texas Transportation Institute
The Texas A&M University System
College Station, Texas 77843–3135

10. Work Unit No. (TRAIS)
11. Contract or Grant No.

DTFH61–98–C–00056

12. Sponsoring Agency Name and Address

Office of Safety and Traffic Operations Research and
Development
Federal Highway Administration
6300 Georgetown Pike
McLean, Virginia 22101–2296

13. Type of Report and Period Covered

Test Report
October 1998 – November 1998

14. Sponsoring Agency Code
15. Supplementary Notes

Research Study Title: Evaluation and Crash Testing of New York's Two–Rail and Four–Rail Bridge Rail, and Box Beam Transition
Contracting Officer's Technical Representative (COTR): Charles F. McDevitt – HSR–20

16. Abstract

This report presents the details and results of New York Two–Rail Curbless Bridge Railing and the results of the small car test –– National Cooperative Highway Research Program (NCHRP) Report 350 test designation 4–11, which is the 2000–kg pickup truck impacting the critical impact point (CIP) at 100km/h and 25 degrees. The New York Two–Rail Curbless Bridge Railing did not meet criteria D and K of NCHRP 350 test designation 4 –11, due to separation in the floor plan and excessive deformation of the occupant compartment.

17. Key Words

Bridge railings, crash testing, roadside safety.

18. Distribution Statement

No restrictions. This document is available to the public through the National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161.

19. Security Classification (of this report)

Unclassified

20. Security Classification (of this page)

Unclassified

21. No. of Pages

57

22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

 

FHWA-RD-99-076

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United States Department of Transportation - Federal Highway Administration