| 摘要 |
The cross points situated along destination path, are defined. When a particular cross point is judged to be a guide objective point, the continuation property of run road in front and rear of the intersection point, is evaluated. When continuation property of road is not secured, the attachment part branched from main line and extending to predefined distance from cross point, is selected. The evaluation of branched attachment part, is done also for cross points which are not judged to be guide objective points, so that vehicles are made to run to main line to reach the destination.
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