Development of a 7.62-m Long Span Guardrail System: Phase II

Keller, Eric A.; Polivka, Karla A.; Bielenberg, Robert W.; Sicking, Dean L.; Rohde, John R.; Faller, Ronald K.; Midwest Roadside Safety Facility

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Development of a 7.62-m Long Span Guardrail System: Phase II

1999-08-13
By Keller, Eric A. ; Polivka, Karla A. ; Bielenberg, Robert W. ; ...

[PDF-1.72 MB]

English

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Details:

Creators:

Keller, Eric A. ; Polivka, Karla A. ; Bielenberg, Robert W. ; Sicking, Dean L. ; Rohde, John R. ; ... More +

Keller, Eric A. ; Polivka, Karla A. ; Bielenberg, Robert W. ; Sicking, Dean L. ; Rohde, John R. ; Faller, Ronald K. Less -
Corporate Creators:

Midwest Roadside Safety Facility
Corporate Contributors:

Midwest States Regional Pooled Fund Program ; Nebraska. Department of Roads ; United States. Federal Highway Administration

Midwest States Regional Pooled Fund Program ; Nebraska. Department of Roads ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Barrier Design Barrier Free Design Barrier Tests Computerized Simulation Construction Crash Injury Research Culverts Degradation Failures Failures Guardrail Design Guardrail Impact Tests Guardrails Guardrail Terminals Highway Safety Impact Tests Injury Prevention Literature Review Performance Evaluation Safety
Publication/ Report Number:

TRP-03-88-99
Resource Type:

Tech Report
Geographical Coverage:

United States ; Nebraska

United States ; Nebraska Less -
TRIS Online Accession Number:

771258
Edition:

Final Report 1999
Corporate Publisher:

Midwest States Regional Pooled Fund Program
Abstract:

A 7.62-m long span guardrail system was developed for use over low-fill culverts. The long span design was constructed with two 2.66-mm (12-gauge) thick nested W-beam rails totaling 30.48 min length. The nested W-beam rail was supported by sixteen W150xl3.5 steel posts and six standard CRT posts, each with two 150x200x360 wood blockouts. Each post measured 1,830-mm long. Post spacings were 1,905-mm on center except for the 7.62-m spacing between the two CRT posts surrounding the unsupported span. The research study included full-scale vehicle crash testing, using a ¾-ton pickup truck. The test, impacting at a speed of 102.9 km/hr and an angle of 24. 7 degrees, was conducted and reported in accordance with the requirements specified in NCHRP Report No. 350, Recommended Procedures for the Safety Performance Evaluation of High Features. The safety performance of the long-span barrier system was determined to be acceptable according to Test Level 3 (TL-3) of the NCHRP Report No. 350 criteria.
Format:

PDF
Funding:

SPR-3(017)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:0a13b81bf0ef39ab01c971c1465c663929965d33914379ad011f7034e3f1ce4e
Download URL:

https://rosap.ntl.bts.gov/view/dot/40814/dot_40814_DS1.pdf
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Development of a 7.62-m Long Span Guardrail System: Phase II

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