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Title:

FRICTION VARIATIONS, CHAPTER 5

Accession Number:

00391054

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/issn/08926891

Abstract:

Transverse variations of friction across a lane, sometimes called differential friction, can cause significant problems for a braking vehicle. This condition arises when the individual wheel paths on which a vehicle's tires ride have significantly different coefficients of friction. This problem may be minor or extremely serious, depending on the magnitude of the frictional difference, its relationship to the average coefficient of friction, and the speed at which a vehicle travels across the surface. Studies have confirmed that differential friction can have a significant effect on a braking vehicle. The vehicle-rotation phenomenon can occur at high as well as low friction levels and should be considered in any pavement friction evaluation. The greatest problem arises when the driver releases his brakes after the car has begun to spin. When this is done the vehicle is propelled in the direction it is facing. This could be off the road or into oncoming traffic. Thus the greater the degree of rotation, the more uncontrollable the vehicle. (Author)

Supplemental Notes:

This paper appeared in the Transportation Research Board, A State-of-the-Art Report: The Influence of Roadway Surface Discontinuities on Safety. 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 #:

00391058

Report/Paper Numbers:

HS-038 006

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Burns, J C
Meyer, W E
Hayhoe, Gordon F
Ivey, D L

Pagination:

p. 17-23

Publication Date:

1984

Serial:

State-of-the-Art Report

Issue Number: 1
Publisher: Transportation Research Board
ISSN: 0892-6891

ISBN:

0309037026

Media Type:

Digital/other

Features:

Figures (6) ; References (17) ; Tables (2)

Old TRIS Terms:

Subject Areas:

Highways; Maintenance and Preservation; Pavements; Safety and Human Factors; I23: Properties of Road Surfaces

Files:

TRIS, TRB

Created Date:

Jan 30 1985 12:00AM

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