| 摘要 |
PROBLEM TO BE SOLVED: To make searchable a path according to a user's request by outputting a setting screen for selecting whether a traffic regulation section is to be avoided or not on a display means when there is a vague traffic regulation section concerning each road data on a searched path. SOLUTION: The road data of an external storage 3 consisting of a CD-ROM and the like have a traffic regulation flag with vague start/end such as the blocking of a street due to snow fall, a firework display, a festival, and events such as a marathon race in addition to a node row for indicating the coordinates information of the road and link information. When a vague traffic regulation section exists on the searched path, the CPU of a central processing unit 4 presents a setting screen for enabling a user to select whether the traffic regulation section should be avoided or not on a display 6. The user selects whether the traffic regulation section should be avoided or not with a road name and regulation data as a judgment material, excludes the traffic regulation section when the traffic regulation section should be avoided, displays the section on the display 6, and performs search again. |
