Driving assist device

A driving assist device comprising:

• a driving operation element that is operated by a driver of an own vehicle, a driving state of the own vehicle changing when the driving operation element is operated by the driver;
• circuitry configured to
• acquire traveling state relevant information indicating a traveling state that includes a state of a periphery of the own vehicle and the driving state of the own vehicle,
• control the own vehicle based on the traveling state relevant information such that the own vehicle travels in a state where a target traveling condition is met, the target traveling condition being a condition to be met in driving assist control, and
• determine, based on the traveling state relevant information, whether the traveling state changed by the operation of the driving operation element is a specific state, the specific state being a state where the target traveling condition is permitted to be changed;
• and
• a request generation device configured to
• accept a predetermined operation or a predetermined input by the driver and
• generate a condition change request when the predetermined operation or the predetermined input is performed while the own vehicle is in the driving assist control, the condition change request being a request by which the target traveling condition is changed, wherein
• the circuitry is configured to change the target traveling condition based on the traveling state relevant information when the condition change request is generated in a case where it is determined that the traveling state changed by the operation of the driving operation element is the specific state.