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.

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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.

File Language:

English

Details

Creators:

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

Midwest Roadside Safety Facility
Corporate Contributors:

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

TRP-03-88-99
Resource Type:

Tech Report
Geographical Coverage:

United States;Nebraska
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)
Download URL:

https://rosap.ntl.bts.gov/view/dot/40814/dot_40814_DS1.pdf
File Type:

[PDF - 1.72 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:53f78bf9bc0029474e123245ff5884b72f178661c99db9a1137f38a158ae25c85167608c6d843d51531b751c71e2915bb11864042368491e69360882be034080

File Language:

English

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