1. A controller for a vehicle, comprising a processor and a memory storing processor-executable instructions, the processor programmed to: detect a pedestrian in a camera image; determine whether a face of the pedestrian is present in the image; detect a lane adjacent the vehicle and on an opposite side of the vehicle from the pedestrian; determine that the adjacent lane has sufficient space free of obstacles; cause the vehicle to change lanes based on an absence of the face and on the adjacent lane having sufficient space free of obstacles; maintain the vehicle in a present lane based on a lack of the adjacent lane, the adjacent lane having insufficient space free of obstacles, or the presence of the face; determine whether the vehicle contains occupants; and actuate brakes to brake based on the absence of the face and an absence of occupants.