Abstract: When a collision avoidance target is a pedestrian or a bicycle, a driving assistance ECU performs automatic braking control. In this case, accelerator override cannot be performed. When the collision avoidance target is an automobile and when an accelerator operation amount is equal to or larger than a first operation amount threshold, the driving assistance ECU prohibits the automatic braking control. In this case, the accelerator override can be performed. When the accelerator operation amount is smaller than the first operation amount threshold, the driving assistance ECU performs the automatic braking control.

Abstract: A vehicle travel support system includes: an information acquisition device that uses a sensor to acquire surrounding situation information; and a vehicle travel control device that controls travel of a vehicle. When a lane change to an adjacent lane is necessary, the vehicle travel control device uses the surrounding situation information to determine whether or not there is a lane restriction item indicating that entry into the adjacent lane is restricted. When there is the lane restriction item, the vehicle travel control device sets a zone of the adjacent lane including a position of the lane restriction item and having a predetermined distance as a no-entry zone. The vehicle travel control device prohibits the lane change until the vehicle passes through a side of the no-entry zone and permits the lane change after the vehicle passes through the side of the no-entry zone.