HIGHWAY SHOULDER DESIGN FROM THE ROADSIDE DEVELOPMENT VIEWPOINT
IF IT IS DEFINITELY DETERMINED BY RESEARCH THAT A SHOULDER MUST BE COMPLETELY IMPERMEABLE TO MOISTURE, THEN TURF SHOULDERS CANNOT BE CONSIDERED. BUT IF SUCH IS NOT THE REQUIREMENT, OR IF IT IS TRUE THAT THERE IS A GREAT MILEAGE OF HIGHWAYS WHICH CANNOT AFFORD EXPENSIVE SHOULDERS, THEN STABILIZED TURF SHOULDERS CAN BE CONSIDERED BECAUSE: (1) TURF CAN BE GROWN ON STABILIZED SOIL-AGGREGATE MATERIALS WHERE MOISTURE IS ADEQUATE AND, UNDER OCCASSIONAL TRAFFIC, WILL SERVE AS AN ECONOMICAL WEARING SURFACE HAVING SHEAR VALUE AND PREVENTING WIND AND WATER EROSION. (2) TURF CAN BE ESTABLISHED AND MAINTAINED ON SOIL-AGGREGATE MATERIALS COMPACTED TO THE DENSITIES REQUIRED FOR STABILITY FOR HIGHWAY PURPOSES. (3) "TOPSOIL" IS NOT ESSENTIAL FOR TURF AND, IF USED WITHOUT FURTHER DEFINITION AS A SOIL MATERIAL, MIGHT ADVERSELY AFFECT STABILITY. (4) WITH PROPER DESIGN, CONSTRUCTION, AND MAINTENANCE, THE COST OF CONSTRUCTION AND MAINTENANCE OF STABILIZED TURF SHOULDERS IS LESS THAN THAT OF OTHER STABLE SHOULDERS. "BUILD-UP" IS NOT A CHARACTERISTIC OF ALL SHOULDERS OF THIS TYPE; WHEN IT DOES OCCUR, IT IS LESS COSTLY TO CORRECT THAN THE CONSTANT EROSION OF AN UNSURFACED SOIL-AGGREGATE MATERIAL. /AUTHOR/
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Supplemental Notes:
- No 419, pp 69-70 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. This paper was also published in the 1956 volume of Highway Research Board Roadside Development Committee Reports.
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Authors:
- Brant, Frank H
- Publication Date: 1957
Media Info
- Media Type: Digital/other
- Pagination: 2p
- Monograph Title: Symposium on Highway Shoulders
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Serial:
- Highway Research Board Bulletin
- Issue Number: 151
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Design; Road shoulders; Soil stabilization; Turf
- Old TRIS Terms: Shoulder stabilization
- Subject Areas: Design; Environment; Geotechnology; Highways;
Filing Info
- Accession Number: 00205096
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 22 1971 12:00AM