Driving ability determination system and driving ability determination method

A driving ability determination system, comprising:

• a processor and a memory coupled to the processor, wherein
• the processor is configured to perform:
• acquiring time-series travel data of a vehicle;
• calculating an evaluation value indicating a steering characteristic of a driver of the vehicle based on the travel data;
• and
• determining whether a predetermined event in which a predetermined load acts on the driver has occurred based on the travel data, wherein
• the calculating includes specifying, as specific travel data, the travel data acquired after a time point at which it is determined that the predetermined event has occurred from among the travel data, calculating a first evaluation value indicating the steering characteristic of the driver based on the travel data obtained by excluding the specific travel data from first travel data acquired or based on the travel data corrected so that a weight for the evaluation value of the specific travel data included in the first travel data is lower than a weight for the evaluation value of a rest of the first travel data, and calculating a second evaluation value indicating the steering characteristic of the driver when the predetermined load acts on the driver based on the first evaluation value and second travel data, wherein
• the processor is further configured to perform:
• evaluating a cognitive function of the driver based on the first evaluation value and the second evaluation value;
• and
• outputting an evaluation result of the cognitive function to a user terminal.