Samenvatting
This report documents the development and subsequent demonstration of the five site Highway Advisory Radio system implemented in the Philadelphia, Pennsylvania area. The system originated as a one-site demonstration on the Walt Whitman Bridge in December 1975, and expanded to a five-site network by July 1976. This report describes the HAR demonstration on the Walt Whitman Bridge focusing on the equipment, signing, installation, traffic surveillance, operation and cost of the HAR. In addition, it examines various planning and operational elements of the expanded Bicentennial Highway Advisory Radio (BHAR).