| 摘要 |
PURPOSE: A method for providing time-variant geographical information is provided to display image traffic information on a screen by processing the time-variant geographical information such as traffic information. CONSTITUTION: In a method for providing an image based time-variant geographical information such as traffic information, a traffic state information(810) composed of a map identifier and a plurality of traffic state data in section-wise is transmitted to a user device, and is to be incorporated with corresponding traffic section map(or TSM(traffic state map))(820) including a plurality of sections(822-833). The traffic section map(820) is preferably stored in a user device. Each section of traffic section map(or TSM)(820) includes at least one vector entity which includes a shape designating statement (e.g. 'LINE') and a position designating statement. The traffic section map(or TSM)(820) also includes a plurality of section discriminating code which is preferably an attribute designating command. The traffic state data for respective section is used to update or designate the attribute value (e.g. color) of corresponding to section's vector entity. The updated TSM(840) is used for displaying traffic information-containing image along with at least one corresponding basic map which is also stored in the user device.
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