CORNER INFORMATION PROVIDING DEVICE AND CORNER INFORMATION PROVIDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a corner information providing device capable of easily providing corner information based on a curvature radius at each travel position in a clothoid section included in the corner section of a road.SOLUTION: The corner information providing device includes: clothoid section specification means (S14) for specifying a clothoid section included in the corner section of a road; clothoid coefficient acquisition means (S20) for acquiring the clothoid coefficients of a clothoid curve indicating the shape of the clothoid section specified by the clothoid specification means; curvature radius calculation means (S35) for, on the basis of curve length from the start point of the clothoid curve corresponding to travel distance from the start point of the clothoid section and the clothoid coefficients, calculating a curvature radius at the position of the travel distance in the clothoid section, therein corner information based on the curvature radius at the position of the travel distance of the clothoid section is provided.