VEHICLE CONTROL DEVICE, VEHICLE CONTROL METHOD, AND STORAGE MEDIUM

A vehicle control device according to an embodiment includes a recognizer that recognizes a surroundings situation of a host vehicle, and a driving controller that generates a target trajectory for the host vehicle, and controls the host vehicle travels along the generated target trajectory, a map information has at least a start point, an end point, and demarcation line information of a branch section in which a main line and a branch lane are connected, the recognizer sets a virtual demarcation line on the branch side on the basis of information on a demarcation line on the main line side in the branch section when the recognizer cannot recognize a demarcation line on the branch side in the branch section in front of the host vehicle, and the driving controller generates a target trajectory in the branch section on the basis of the set virtual demarcation line.