Driving support device

A driving support device is configured to restrict notification of information on a presence of an oncoming vehicle in an opposing path entering the intersection to a driver of a host vehicle over a restriction period which is a period from a first time point at which it is determined that a state of a traffic signal has been switched from a first state in which the turn of the host vehicle is prohibited to a second state in which the turn of the host vehicle is permitted to a time point at which it is estimated that the host vehicle is able to perform the turn at an intersection based on information on the state of the host vehicle after the first time point, and to release the restriction of the notification of the information when the restriction period has elapsed from the first time point. 驾驶支持装置被配置成在限制时间段内限制向本车辆的驾驶员通知关于对向路径中存在进入交叉路口的迎面车辆的信息，该限制时间段是从确定交通信号的状态已经从禁止本车辆转向的第状态切换到允许本车辆转向的第二状态的第时间点到在第时间点之后基于关于本车辆的状态的信息估计本车辆能够在交叉路口处执行转向的时间点的时间段，并且驾驶支持装置被配置成当从第时间点起经过了限制时间段时解除对信息的通知的限制。