00391058

Monograph

http://onlinepubs.trb.org...s/state-of-the-art/1/1.pdf

It is generally recognized that discontinuities in roadway surfaces can cause problems with vehicle steering, braking, maneuvering, and response that lead to loss of control. Such discontinuities can play a significant role in the occurrence of traffic accidents and they should be considered when assessing maintenance policy, evaluating improvements. Discontinuities include deviations from the intended physical characteristics of the traveled surface that result from traffic loads, environmental effects, or other causes. In the context of this report they also include pavement edge geometry, water accumulation, and surface contaminants. The relationship between roadway surface discontinuities and traffic safety has been a topic of discussion for many years. However, except for surface friction, literature attempting to relate discontinuities to accidents is limited. The Transportation Research Board's Committee on Surface Properties-Vehicle Interaction recognized that no comprehensive effort had ever been made to compile and discuss the various kinds of discontinuities that occur in roadway surfaces and their influence on traffic safety. Consequently, a Task Group was appointed by the Committee to compile such a document. The objectives of the Task Group were to identify and discuss the safety implication of significant categories or surface discontinuities and document relevant literature for each category. The results of the Task Group's activity, contained in this report, will provide a useful resource for decision makers and others involved in providing and maintaining safe traveled surfaces. (Author)

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.

HS-038 006

45p

1984

State-of-the-Art Report

0309037026

Digital/other

Appendices (1) ; Figures; References; Tables

Crash causes; Decision making; Hazards; Highway safety; Maintenance management; Risk assessment; Surface course (Pavements); Traffic crashes

Criteria; Discontinuity

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

HSL, TRIS, TRB

Jan 30 1985 12:00AM

• ACCIDENT DATA RELATIONSHIPS, CHAPTER 2
• FRICTION VARIATIONS, CHAPTER 5
• PAVEMENT EDGES, CHAPTER 4
• ROUGHNESS, HOLES, AND BUMPS, CHAPTER 3
• SMALL AND LARGE VEHICLES, CHAPTER 8
• SURFACE CONTAMINANTS, CHAPTER 7
• THE INFLUENCE OF ROADWAY SURFACE DISCONTINUITIES ON SAFETY. INTRODUCTION-CHAPTER 1
• WATER ACCUMULATIONS, CHAPTER 6