Driving control system for vehicle

A driving control system for a vehicle, the vehicle including a steering device configured to change a turning angle of turning wheels based on a steering operation of a driver, a steering operation amount sensor configured to detect a steering operation amount of the driver, and an abnormality determining device configured to determine whether the driver is in an abnormal state, the driving control system comprising:

• an actuator configured to adjust a turning state quantity of the vehicle without depending on a driving operation of the driver;
• and
• an electronic control unit configured to control the actuator,
• wherein the electronic control unit is configured to:
• calculate a target turning state quantity of the vehicle based on the steering operation amount;
• and
• when a magnitude of the target turning state quantity exceeds a predetermined allowable range,
• calculate a corrected target turning state quantity equal to one of (i) an upper limit of the predetermined allowable range and (ii) a lower limit of the predetermined allowable range, and
• control the actuator based on the corrected target turning state quantity when the abnormality determining device determines that the driver is in the abnormal state.