Vehicle Travel Control Method and Travel Control Device

During automated or autonomous travel control of a subject vehicle, when a road section including at least one of a curve and a narrow road is present ahead of the subject vehicle and another vehicle is traveling in an adjacent lane to the traveling lane for the subject vehicle, inter-vehicle distance control is executed in which the subject vehicle is controlled to travel with an inter-vehicle distance that is set such that the subject vehicle and the other vehicle do not travel side by side when the subject vehicle travels in the road section.