HRIS (Highway Research Information Service) Abstracts. Volume 20, Number 3 - Fall 1987

摘要

HRIS Abstracts is a quarterly publication that provides information about highway and nonrail mass-transit research. It is compiled from computer records of the Highway Research Information Services (HRIS), an important subfile of the Transportation Research Information Services (TRIS) data base. Each issue consists of four sections: Abstracts of research reports; Source Index; Author Index; and Retrieval Term Index.