Table 2: The confidence value of different conditions.

CurveTraffic signMemoryTotal

Group A, lap 1A100A1
Group B, lap 1A1B10A1 + B1
Group C, lap 1A10C1A1 + C1
Group A, lap 2–5A10C2A1 + C2
Group B, lap 2–5A1B1C2A1 + B1 + C2
Group C, lap 2–5A10C1 + C2A1 + C1 + C2

Notice: A1 is a variable. Others are constant. All of them are positive.