FOLLOW-UP TRAVEL SUPPORT DEVICE, FOLLOW-UP TRAVEL SUPPORT METHOD AND NON TRANSITORY RECORDING MEDIUM

The follow-up travel support device includes a processor configured to detect a surrounding vehicle around a host vehicle, and set a target vehicle speed of the host vehicle. The processor is configured to set the target vehicle speed to a speed different from a set speed of the host vehicle until a partner vehicle that performs a follow-up travel in which a following vehicle follows a preceding vehicle together with the host vehicle is detected as the surrounding vehicle.