| Popis: |
In the current study, the effects of driver distraction were investigated using a systematic evaluation method based on real vehicle experimental data. A total of 15 volunteers participated under different distracted highway driving environment conditions, such as 1) normal driving, 2) visual load, 3) visual-cognitive load, 4) visual-manual load, 5) cognitive underload, and 6) cognitive overload. Drivers' steering control response and lateral vehicle motion were measured. The following results indicated significant (α=0.05) differences compared with those of the normal driving condition: Under visual load condition, the steering angular velocity and lateral vehicle motion increased. Under visual-cognitive condition, the steering reversal rate, steering angular velocity, and lateral vehicle motion increased. Under visual-manual load condition, the steering reversal rate, steering angular velocity, and lateral vehicle motion increased. Under cognitive underload condition, the steering reversal rate increased. Under cognitive load condition, the steering reversal rate, and lateral vehicle motion increased. Different effects on driving on real roads were observed according to the driving workload modalities. Further research needs to be performed to generalize the results with an increased sample size and diverse driving environments. |
