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Title:

PERFORMANCE RATING FOR AGGREGATE-SURFACED ROADS

Accession Number:

00207192

Record Type:

Component

Abstract:

AGGREGATE-SURFACED ROADS, ESPECIALLY THOSE CONSTRUCTED WITH VOLCANIC CINDERS, HAVE PERFORMED WITH VARIABLE RESULTS. THE U.S. FOREST SERVICE, IN CONNECTION WITH FOREST DEVELOPMENT ROAD CONSTRUCTION, INITIATED A STUDY TO DETERMINE WHAT PARAMETERS INFLUENCED THE PERFORMANCE OF CINDERS WHEN USED AS A WEARING SURFACE. A ROAD-RATING SYSTEM, SIMILAR TO THE AASHO ROAD TEST METHODS, WAS DEVELOPED TO DETERMINE WHICH WERE "GOOD ROADS" AND WHICH WERE "POOR ROADS" BASED ON 0 TO 5 NUMERICAL RATING SCALE. FORTY-SEVEN ROADS IN FORESTS IN SOUTH-CENTRAL OREGON WERE RATED AND STATISTICALLY CORRELATED WITH MAINTENANCE, RUTTING, WATERING, SPEED, AND TRAFFIC VOLUME BY MEANS OF A MULTIPLE LINEAR REGRESSION PROGRAM. THE RESULTING REGRESSION EQUATION HAD A MULTIPLE CORRELATION COEFFICIENT OF 0.812, WITH RUTTING AND SPEED BEING THE MOST SIGNIFICANT VARIABLES. THE RESULTS ARE FELT TO APPLY TO ALL TYPES OF AGGREGATE-SURFACED ROADS, WITH THE RESULTANT NUMERICAL RATING REFERRED TO AS A PERFORMANCE INDEX. THE INFORMATION FROM THIS RATING SYSTEM WILL BE USED TO RECOMMEND SPECIFICATIONS FOR UNTREATED SURFACE-COURSE MATERIAL. /AUTHOR/

Supplemental Notes:

Paper sponsored by Committee on Pavement Condition Evaluation and presented at the 49th Annual Meeting. 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 Accession #:

01410250

Authors:

Lund, John W
Hendrickson, Larry G

Pagination:

pp 91-98

Publication Date:

1970

Serial:

Highway Research Record

Issue Number: 311
Publisher: Highway Research Board

Media Type:

Digital/other

Features:

Figures (5) ; References (12) ; Tables (2)

Subject Areas:

Data and Information Technology; Geotechnology; Highways; Pavements

Files:

TRIS, TRB

Created Date:

Sep 28 1970 12:00AM

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