Digital Mapping for Road Navigation in Japan

by Akira Onaka, Japan Digital Road Map Assoc, Tokyo, Japan,
Shinroku Kuma, Japan Digital Road Map Assoc, Tokyo, Japan,

Document Type: Proceeding Paper

Part of: Pacific Rim TransTech Conference: Volume I: Advanced Technologies


In Japan, more than 300,000 vehicles are presently equipped with car navigation systems. Development of these systems had been greatly aided by the completion of a standardized digital road map. Up to 1965, subways and railways were the main modes of urban and interurban transportation, but after the 1970's roads were improved and car ownership sky-rocketed. The congestion of roads has become a difficult problem for everybody, navigation systems help drivers to follow the shortest route to their destination.

Subject Headings: Highways and roads | Navigation (geomatic) | Mapping | Automobiles | Railroad trains | Rail transportation | Traffic congestion | Control systems | Japan | Asia

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