DRIVING ENVIRONMENT INFORMATION GENERATION METHOD, DRIVING CONTROL METHOD, DRIVING ENVIRONMENT INFORMATION GENERATION DEVICE

Processor (11) operates to: acquire first information regarding a surrounding travel environment including a travel lane in which a subject vehicle travels, on the basis of detection information from an onboard sensor (220); refer to map information (21) stored in a storage device (20) to acquire second information regarding lanes of a road; determine whether or not a travel road to which the travel lane belongs is a predetermined specific road, on the basis of the first information; and when a determination is made that the travel road is the specific road, composite the first information and the second information to generate travel environment information.