Driver assistance apparatus, driver assistance processing method, and recording medium

A driver assistance processing method causing a computer to execute:

• acquiring information on a surrounding environment of a vehicle;
• setting a rule deviation risk indicating a risk of deviation from a traffic rule related to travel of the vehicle for an object of the traffic rule, in accordance with one or both of an intensity of the traffic rule and an application time zone of the traffic rule;
• setting a rule deviation allowable risk indicating a travel allowable area of the vehicle against the rule deviation risk, the rule deviation allowable risk being set higher in proportion to a magnitude of a vehicle speed of the vehicle;
• and
• setting a target track and a target speed for automated driving of the vehicle, based on the rule deviation risk and the rule deviation allowable risk, to cause the vehicle to travel in a location where the rule deviation allowable risk is higher than the rule deviation risk.

A non-transitory tangible recording medium containing a computer program, the computer program causing a computer to execute:

• acquiring information on a surrounding environment of a vehicle;
• setting a rule deviation risk indicating a risk of deviation from a traffic rule related to travel of the vehicle for an object of the traffic rule, in accordance with one or both of an intensity of the traffic rule and an application time zone of the traffic rule;
• setting a rule deviation allowable risk indicating a travel allowable area of the vehicle against the rule deviation risk, the rule deviation allowable risk being set higher in proportion to a magnitude of a vehicle speed of the vehicle;
• and
• setting a target track and a target speed for automated driving of the vehicle, based on the rule deviation risk and the rule deviation allowable risk, to cause the vehicle to travel in a location where the rule deviation allowable risk is higher than the rule deviation risk.