Systems analysis and design guidelines for highway advisory radio. Executive summary.

This report summarizes the activity and accomplishments under the FHWA contract entitled "Systems Analysis and Design Guidelines for Highway Advisory Radio." It includes a summary of the seven principal tasks which were: Analytical and empirical analysis of HAR system components; HAR system installation, operations and maintenance; HAR visual signing and messages; Technical advice; HAR system design guidelines; Recent HAR developments; and User's guide. Also included are references to the documents produced under the contract, a discussion of major findings, and suggestions for additional research.