Driving support system

A driving support system that supports driving of a vehicle, the driving support system comprising:

• a storage device that stores driving environment information indicating a driving environment of the vehicle;
• and
• a processor that executes steering support control for steering the vehicle in a first direction away from a risk factor in front of the vehicle based on the driving environment information, wherein:
• a target steering amount in the steering support control is represented by a function of a relative relationship parameter including a lateral distance between the vehicle and the risk factor;
• a straight road is a road having a curvature less than a first curvature;
• a curved road is a road having a curvature equal to or greater than the first curvature;
• when a road ahead from the vehicle to the risk factor includes the curved road, the processor reduces the target steering amount for the same relative relationship parameter or advances a start timing of the steering support control as compared to when the road ahead is the straight road;
• the processor sets a start timing of the steering support control to a timing delayed from a reference timing by a delay time;
• when the road ahead from the vehicle to the risk factor includes the curved road, the processor sets the delay time to a second delay time;
• when the road ahead is the straight road, the processor sets the delay time to a first delay time;
• and
• the second delay time is shorter than the first delay time.