00173547

Component

https://onlinepubs.trb.or...trcircular/192/192-009.pdf

Three principal directions of work to provide skid-resistant surfaces are described, and the reasons are listed for not performing regular monitoring of the entire rural network of main roads. The examination of newly laid surfacings before opening to traffic is one of the 3 directions discussed here. New load asphaltic concrete can fail to offer a harsh microtexture due to excess binder accumulated at the top of the layer during rolling. Also, new laid cement concrete pavements offer slippery surfaces when wet due to insufficient treatment of the fresh concrete surface. A portable pendulum type skid tester is sufficient for measurements on these surfaces. The accumulation and application of experience with regionally standardized mix compositions is another area of effort. Limestone is excluded from the top layers, and the practice is outlined of spreading of crushed sand onto the hot layer during the rolling process. Other means of obtaining a coarse texture are discussed. The systematic evaluation of accident statistics to identify black spots under wet conditions has been carried out since the sixties, and is now part of an accident evaluation scheme that covers all aspects of accident occurrences.

This article appeared in the Transportation Research Circular Number 192, Summary: Second International Skid Prevention Conference. 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.

p. 19-21

1978-2

Transportation Research Circular

Digital/other

Figures (6)

Asphalt concrete; Concrete; Pavement grooving; Pavements; Paving materials; Sand; Skid resistance; Skid resistance tests; Skidding; Surface course (Pavements); Texture; Traffic crashes; Wet weather

Wet pavements

Highways; Maintenance and Preservation; Pavements; Safety and Human Factors

TRIS, TRB

May 18 1978 12:00AM

• APPLICATION OF KNOWLEDGE OF PAVEMENT SURFACE PROPERTIES IN FRANCE
• APPLICATION OF KNOWLEDGE OF PAVEMENT SURFACE PROPERTIES IN GREAT BRITAIN
• APPLICATION OF KNOWLEDGE OF PAVEMENT SURFACE PROPERTIES IN JAPAN
• APPLICATION OF KNOWLEDGE OF PAVEMENT SURFACE PROPERTIES IN OTHER COUNTRIES
• APPLICATION OF KNOWLEDGE OF PAVEMENT SURFACE PROPERTIES IN THE NETHERLANDS
• CLOSING REMARKS OF THE SECOND INTERNATIONAL SKID PREVENTION CONFERENCE
• INTRODUCTORY REMARKS TO THE SECOND INTERNATIONAL SKID PREVENTION CONFERENCE
• REPORT OF SUBCOMMITTEE ON PAVEMENT CHARACTERISTICS
• REPORT OF SUBCOMMITTEE ON TIRES, VEHICLES, AND VEHICLE COMPONENTS
• REPORT OF SUBCOMMITTEE ON WET-WEATHER ACCIDENT EXPERIENCE, HUMAN FACTORS, AND LEGAL ASPECTS
• SUMMARY OF THE SECOND INTERNATIONAL SKID PREVENTION CONFERENCE