A vehicle includes an inputter receiving an emergency stop command; an emergency stop condition determiner determining that an emergency stop condition is satisfied when a driver's state is determined as a predetermined inoperable state, a steering wheel is not operated for a predetermined time period, or a rate of change of a yaw rate of the vehicle exceeds a predetermined value; a sensor configured for detecting an obstacle around the vehicle; and a controller configured to determine whether the vehicle can avoid collision with a front obstacle only by braking without a lane change, to determine a risk area in an adjacent lane based on a braking distance of the vehicle and obstacle detection information in a lane adjacent to a driving lane of the vehicle, and to control the lane change or a braking process of the vehicle based on whether the obstacle is detected in the determined risk area.