Driving assist system

A driving assist system that assists driving of a vehicle, the driving assist system comprising:

• a memory configured to store driving environment information indicating a driving environment for the vehicle;
• and
• a processor configured to execute driving assist control including at least one of deceleration control and steering control for avoiding a collision with a target ahead of the vehicle based on the driving environment information, wherein
• the driving assist control operates when the target exists within an assist area and does not operate when the target exists outside the assist area,
• a roadway area in which the vehicle exists is an area between a first roadway boundary located on a first side as viewed from the vehicle and a second roadway boundary located on a second side opposite to the first side as viewed from the vehicle,
• a crossing target is the target that crosses the roadway area ahead of the vehicle from the first side toward the second side,
• the assist area for the crossing target is an area between an assist start boundary located on the first side as viewed from the vehicle and an assist end boundary located on the second side as viewed from the vehicle,
• a first assist width is a distance between the vehicle and the assist start boundary,
• a second assist width is a distance between the vehicle and the assist end boundary, and
• the processor is further configured to set the assist area for the crossing target such that the second assist width is smaller than the first assist width.