Travel control device, travel control method, and storage medium

A travel control method in which a computer

• automatically controls acceleration/deceleration and steering of a vehicle,
• acquires manual operation information related to a manual operation performed by an occupant of the vehicle, and
• when the manual operation information related to one of the acceleration/decelerations and the steering is acquired, and the manual operation information related to the other of the acceleration/deceleration and the steering is not acquired,
• when the manual operation information satisfies a first condition, continues both the automatic control related to the acceleration/deceleration and the automatic control related to the steering while changing control content of the automatic control according to the manual operation information satisfying the first condition, and
• when the manual operation information satisfies a second condition in which an operation intensity is greater than in the first condition, cancels the automatic control related to that of the acceleration/deceleration and the steering for which the manual operation information has been acquired, and continues the automatic control related to that of the acceleration/deceleration and the steering for which the manual operation information has not been acquired.

A computer-readable non-transitory storage medium storing a program that causes a computer to

• automatically control acceleration/deceleration and steering of a vehicle,
• acquire manual operation information related to a manual operation performed by an occupant of the vehicle, and
• when the manual operation information related to one of the acceleration/decelerations and the steering is acquired, and the manual operation information related to the other of the acceleration/deceleration and the steering is not acquired,
• when the manual operation information satisfies a first condition, continue both the automatic control related to the acceleration/deceleration and the automatic control related to the steering while changing control content of the automatic control according to the manual operation information satisfying the first condition, and
• when the manual operation information satisfies a second condition in which an operation intensity is greater than in the first condition, cancel the automatic control related to that of the acceleration/deceleration and the steering for which the manual operation information has been acquired, and continue the automatic control related to that of the acceleration/deceleration and the steering for which the manual operation information has not been acquired.