DRIVING CURVE CREATION DEVICE, DRIVING ASSISTANCE DEVICE, DRIVING CONTROL DEVICE, AND DRIVING CURVE CREATION METHOD

An embodiment includes: a speed limit setter that acquires a speed limit section of a running section delimited at positions at which a speed limit changes; a reverse coasting curve generator that determines a base point based on a terminal position of the speed limit section and an upper limit speed according to a speed limit for the speed limit section and generates a reverse coasting curve from the base point based on vehicle performance information and route information; a parameter setter that determines a coasting start position based on the reverse coasting curve; and a simulator that generates a running profile by performing a running simulation based on the running section, speed limit information on the running section, the reverse coasting curve, the coasting start position, and the vehicle performance information and the route information. The reverse coasting curve generator sets a range below the upper limit speed as a coasting range and sets a range equal to or above the upper limit speed to the upper limit speed during coasting from the base point toward a departure point.