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In Canada, a national Intelligent Vehicle-Highway System [IVHS) - or Road Transport Informatics (RTI) or Advanced Telematics in Road Transport (ATRT) - program is under active development at present. To reach this stage, many parallel activities had to be pursued, particularly over the past four years. These have included research and demonstration projects on freeway traffic management systems and commercial fleet applications, state-of-the-art reviews of mobile systems technologies - and two major conferences, one on vehicle navigation and information systems, the other on automatic vehicle identification. This paper recalls some of the main events and progress made over this period and outlines current work in identifying Canadian invoLvement in the IVHS field. It is an update on a paper presented at the RTI/IVHS Conference of 24th ISATA (Florence, Italy, 20-24 May 19911 bringing into focus the most recent developments.

When the Automatic Vehicle Identification Concept (AVI) started it was simply an Electronic Tag. Today with a two-way communication capability, programmability and intelligence it has graduated to a full fledged Close-Range Road/Vehicle Communication System (CRCS). Its applications are numerous: from vehicle identification and location, two-way vehicle communication, to fleet management. This paper is one of a series of complementary papers that cover the enhanced AVI system/CRCS concept and describe a number of the different applications of this low cost, high impact technology that is revolutionizing the road transportation system. Certain sections are common to all papers and form the background to the core of each of the papers. This paper in particular gives an overall view of the CRCS concept and concentrates on applications to the commercial vehicle operations.