Section determination device and section determination method

摘要

A segment determination device 1 is provided with: an altitude information acquisition unit 41 that acquires altitude information for a plurality of points on a road on which a vehicle travels; a feature amount determination unit 42 that determines a feature amount indicating gradient information for the road on the basis of altitude information for the plurality of points including a first point in front of the vehicle in the direction of travel thereof and a second point further frontward than the first point among the plurality of points; and a segment determination unit 44 that, when the feature amount is outside of a predetermined range, determines a segment in which the first point serves as a starting point and whichever of two points adjacent to the second point is closer to the vehicle serves as an end point.