Abstract
This publication is an update of the National Cooperative Highway Research Program (NCHRP) Summary of Progress series, including only those projects that were active, or for which some type of activity remained, after January 1, 1989. Following an introductory section explaining the National Cooperative Highway Research Program are five tables providing the following information: Summary of status through December 31, 1989 for FY '63 through FY '90 projects; Examples of utilization of NCHRP results; Published Reports of the NCHRP; Published NCHRP Research Results Digests; and Published NCHRP Legal Research Digests. The main body of the publication contains summaries of progress for projects active after January 1, 1989. (Author/publisher)