Outline of the Digital Road Map

The Digital Road Map Database (DRM Database) is the standard national digital road map database supporting Japanese ITS infrastructures. This database consists of digital cartographic data in which locations and other information are expressed in numeric form, so that computers can recognize roads, intersections and so on. The DRM Database allows car navigation systems and the like to display road maps on their screens and search for the suitable route to a destination avoiding traffic congestion.

The Japan Digital Road Map Associaton (DRM Associaton) creates, updates and provides the DRM Database based on public-private collaboration.


Paper Map
(This is a part of the 1:25,000 scale topographic map “Northern and Southern Nagoya” issued by the Geospatial Information Authority of Japan(GSI)
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Digital Road Map
(The digital road is recorded as a set of numbers and letters. This is an example of a depicted image produced by software that can convert this alphanumeric data into visual form.)
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