Impact of Risk Scenario-driven Secondary Task Driving Behavior on Takeover Performance

Abstract:

In this paper， high-risk scenario element parameters are used as control switching conditions to explore the impact of secondary tasks on driver takeover performance. Specifically， the high-risk scenario of adjacent vehicles entering is extracted from the NGSIM dataset as the control switching condition. The Pearson correlation test is used to analyze the correlation between different takeover performance indicators， and one-way ANOVA is used to analyze the impact of the resource occupation mode and interruptibility of secondary tasks on takeover performance indicators. The results show that the takeover time is coupled with the lateral and longitudinal maneuverability， safety， and takeover efficiency during the takeover process. Increasing visual occupation increases the takeover reaction time by 0.26 s and undermines the vehicle longitudinal stability and takeover efficiency. Increasing auditory occupation increases the takeover reaction time by 0.45 s and reduces the takeover efficiency. Increasing cognitive occupation decreases the takeover reaction time by 0.23 s and improves the takeover safety. Increasing operational occupation increases the takeover reaction time by 0.21 s and increases the maximum lateral acceleration during the takeover process. The interruptibility of secondary tasks reduces the takeover reaction time by 0.23 s， but has no significant impact on subsequent vehicle control related indicators during the takeover.