Car navigation systems

Abstract

Automobile navigation is a demanding application of digital maps and appears likely to become a common and economically important one. A few systems are commercially available and many prototypes exist. At the time of writing, there are several pilot projects, just a few commercial operations and some fledgling consortia which have as their mission the production of digital maps for navigation or the promulgation of standards for such maps. All systems require faster retrieval than GIS systems have typically provided. Applications using navigation systems include experimental traffic systems, such as traffic congestion reporting and "sign-post' transmitters and receivers for communicating with on-board navigation systems. -from Author