The timecourse of driver visual attention in naturalistic driving with adaptive cruise control and forward collision warning
Adaptive Cruise Control (ACC) and Forward Collision Warning (FCW) have been shown to have a positive effect on safety-related measures despite a general increase in secondary task involvement. To understand this effect, this study examined the relationship between drivers' glance locations and ACC hard braking or FCW events when ACC is active. The study analyzed naturalistic driving on motorways where the car remained in the same lane. Four subsets of driving segments were included: ACC braking (peak deceleration = 3 m/s2), FCW+ACC (driving with ACC when a forward collision warning was issued)ACC maintaining speed, and Driver braking without ACC or FCW. The results indicate that although drivers do take their eyes off path more when using ACC, this conclusion seems to be valid only in non-critical (baseline-similar) situations. Drivers showed a steady increase in % EyesOnPath well before critical situations, resulting in 95% EyesOnPath both at the onset of ACC braking and at the onset of driver braking, and 98% when FCW were issued. At braking onset, headway was significantly longer when ACC braked compared to when the driver braked.
- Record URL:
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Authors:
- Tivesten, E
- Morando, A
- Victor, T
- Conference:
- Publication Date: 2015-11
Language
- English
Media Info
- Pagination: 14p
- Monograph Title: 4th International Conference on Driver Distraction and Inattention (DDI2015), Sydney: proceedings
Subject/Index Terms
- TRT Terms: Attention; Autonomous intelligent cruise control; Braking; Crash avoidance systems; Driver performance; Drivers; Eye movements; Reaction time
- Uncontrolled Terms: Safe systems (road users); Safe systems (vehicles)
- ATRI Terms: Adaptive cruise control (ACC); Attention; Braking; Crash avoidance system; Driver performance; Eye movement; Reaction time
- ITRD Terms: 2247: Reaction (human)
- Subject Areas: Safety and Human Factors; I83: Accidents and the Human Factor;
Filing Info
- Accession Number: 01594970
- Record Type: Publication
- Source Agency: ARRB
- Report/Paper Numbers: 15349
- Files: ITRD, ATRI
- Created Date: Mar 30 2016 10:52AM