00641429

Component

http://onlinepubs.trb.org...trr/1993/1409/1409-014.pdf

https://scholar.google.co...rley&publication_year=1993

The problem of road edge scour on grassed shoulders is discussed. The focus is on the edge scour problem located in the National Park Service units, especially the roads making up the category of parkways. The literature pertaining directly to edge scour is limited to only a few items. In contrast, the literature that addresses the roadside landscape is considerable. Many of the findings came about in the 1930s. The origin of the parkways in the 1920s was the basis for many of the design philosophies followed today. Although design standards and maintenance practices have been refined, edge scour still occurs. Edge scour is most prevalent in parkways that were designed in the 1930s and that have not been improved to accommodate today's traffic conditions. With an almost 50-year construction cycle, many parkways and similar park and recreational roads exhibit the problem. To illustrate the current problem and current maintenance practices in the national park system, maintenance practices and the extent and treatment of edge scour are described for several national parks. The description includes the type of study zone--tropical, low altitude temperature, eastern high altitude, and the western high altitude. These four zones form the basis for site-specific considerations and recommendations.

This paper appears in Transportation Research Record No. 1409, Maintenance Management, Traffic Safety, and Roadsides. 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

01403253

English

p. 99-104

1993

Transportation Research Record

0309055563

Figures (1) ; Photos (1) ; References (26)

Guides to the literature; Literature reviews; Maintenance practices; Parkways; Repairing; Scour

Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods

TRIS, TRB

Jan 24 1994 12:00AM

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• CORRELATION OF THE NIGHTTIME VISIBILITY OF PAVEMENT MARKING TAPES WITH PHOTOMETRIC MEASUREMENT
• DURABLE FLUORESCENT MATERIALS FOR THE WORK ZONE
• EFFECT OF NONPERMANENT PAVEMENT MARKINGS ON DRIVER PERFORMANCE
• EVALUATING THE POTENTIAL OF REMOTE SENSING RURAL ROAD AND TRAVEL CONDITIONS
• FRAMEWORK FOR SYSTEMATIC DECISION MAKING IN HIGHWAY MAINTENANCE MANAGEMENT
• OHIO NATIVE WILDFLOWER SEED NURSERY
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• PROJECT COST EVALUATION METHODOLOGY APPROACH TO PRIVATIZATION IN THE WASHINGTON STATE DEPARTMENT OF TRANSPORTATION
• SPEED CHANGE DISTRIBUTION OF VEHICLES IN A HIGHWAY WORK ZONE
• TEMPORAL SPEED REDUCTION EFFECTS OF DRONE RADAR IN WORK ZONES
• TRAFFIC CONTROL GUIDELINES FOR URBAN ARTERIAL WORK ZONES