| 摘要 |
<p>A curvature radius calculation unit (16) extracts, from among a plurality of road information setting points along a travel path, a road information setting point in which the difference between the curvature radii of a front position and a rear position is equal to or greater than a pre-set threshold value. Then, the curvature radius calculation unit (16) outputs the curvature information of a position excluding the extracted road information setting point among the plurality of road information setting points.</p> |
