TRAFFIC SAFETY SUPPORT SYSTEM

Provided is a traffic safety support system capable of improving traffic safety in a situation in which a mobile body has merged onto a road on which a mobile vehicle as a host vehicle is traveling and is approaching the host vehicle. A traffic safety support system includes a recognizer, a HMI, a risk notification setting unit, and a risk notification control device. The risk notification setting unit sets a notification mode to a hinting notification mode in a case where a motorcycle acts as an oncoming vehicle and a first travel path of a four-wheeled automobile and a second travel path of the motorcycle join, and sets the notification mode to an analogue notification mode in a case where the motorcycle is present within an analogue notification actuation range.