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.