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Title: DYNAMIC FIELD TEST OF WOODEN SIGNPOSTS
Accession Number: 00209196
Record Type: Component
Abstract: RESULTS ARE REPORTED OF 10 TESTS OF WOODEN SIGNPOSTS TO DETERMINE THEIR BREAKAWAY CHARACTERISTICS WHEN VARIOUS PLANES OF WEAKNESS WERE INTRODUCED INTO THE POSTS. DIFFERENT SIZES OF HOLES OR NOTCHES AS PLANES OF WEAKNESS WERE INTRODUCED INTO THE POSTS. DYNAMIC TESTS, SIMULATING AUTOMOBILE COLLISIONS, WERE ACCOMPLISHED BY TOWING THE TEST VEHICLE TO 40 MPH AND RELEASING IT 100 FT PRIOR TO IMPACT WITH THE POST. TEST RESULTS INDICATE THAT HOLES ARE EQUIVALENT TO NOTCHES FOR REDUCING THE POST SECTION AT THE GROUND LINE, BUT THE PLANE OF WEAKNESS INTRODUCED UNDER THE SIGN DID NOT FUNCTION. RESULTS ALSO INDICATE THAT SAFETY WOULD BE PROVIDED IF SIGNS WERE MOUNTED WITH A CLEARANCE OF 6 TO 7 FT BETWEEN THE GROUND LINE AND THE BOTTOM OF THE SIGN AND IF STRONGER BOLTS WERE USED TO CONNECT THE SIGN TO THE POST. POSTS WITH 4- BY 4-IN. CROSS SECTIONS DO NOT REQUIRE A PLANE OF WEAKNESS. /AUTHOR/
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01410777
Corporate Authors: Highway Research Board (HRB) Washington, DC Authors: Sankey, Foster CPagination: pp 158-168
Publication Date: 1970
Conference:
Second Western Summer Meeting
Location:
Salt Lake City Utah, United States Media Type: Print
Features: Figures
(13)
; References
(2)
; Tables
(2)
TRT Terms: Old TRIS Terms: Subject Areas: Bridges and other structures; Highways; Research
Files: TRIS, TRB, ATRI
Created Date: Jul 21 1970 12:00AM
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