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Björn Peters, VTI Active Attention A driving simulator experiment.

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Presentation on theme: "Björn Peters, VTI Active Attention A driving simulator experiment."— Presentation transcript:

1 Björn Peters, VTI Active Attention A driving simulator experiment

2 Björn Peters, VTI Active Attention Objective Evaluation of an method to detect driver fatigue impairment based on analysis of the driver’s micro control

3 Björn Peters, VTI Active Attention Method 10 shift workers ( 5 male, 5 female ) 2 hours drive, two occasions (morning) – after a night’s work – after a normal sleep Rural road, oncoming cars Double blind test – Data in 5 minute blocks, random order, missing data replaced – equal number of sections for all subjects

4 Björn Peters, VTI Active Attention Subjects Mean age 37 years Mean license age 16.4 years Mean annual driving distance 9500 km 4 had near accident experiences Most shift workers for years

5 Björn Peters, VTI Active Attention Measures Driving behaviourPhysiology – speed - EOG ( duration, freq.) – lateral position – TLC KSS ratings – steering wheel angle - driver (5 min) – lateral acceleration - test leader (5 min) – steering wheel torque Questionnaires - pre and post

6 Björn Peters, VTI Active Attention Road – vehicle geometry

7 Björn Peters, VTI Active Attention Analysis approach Comparing AA results to KSS driver ratings – correlation – multiple regression Reference – Driver’s lateral and longitudinal control – Blink duration (< 0.5 s) and frequency – Test leader KSS ratings

8 Björn Peters, VTI Active Attention KSS Driver Ratings

9 Björn Peters, VTI Active Attention KSS Driver and Test Leader

10 Björn Peters, VTI Active Attention Results - driving behaviour 4 drivers were not able to complete fatigued driving condition 11 “accidents” – 4 wheels off the road – 10 “fatigued”, 1 “alert” – 10 at KSS level 9, 1 at KSS level 8

11 Björn Peters, VTI Active Attention Correlations – all drivers KSS – Driving behaviour

12 Björn Peters, VTI Active Attention Correlations per driver KSS – Driving behaviour

13 Björn Peters, VTI Active Attention Regression Analysis Driver 1

14 Björn Peters, VTI Active Attention Correlations – all drivers KSS to AA0 -5

15 Björn Peters, VTI Active Attention Correlations per driver KSS to AA0 -5

16 Björn Peters, VTI Active Attention Driver 1

17 Björn Peters, VTI Active Attention Driver 3 Stopped driving

18 Björn Peters, VTI Active Attention Driver 8

19 Björn Peters, VTI Active Attention Driver 1 block 3

20 Björn Peters, VTI Active Attention Driver 1 – block 36

21 Björn Peters, VTI Active Attention Steering angle Driver 1

22 Björn Peters, VTI Active Attention Road departures 4 wheels off the road

23 Björn Peters, VTI Active Attention Subject 3 – block 34

24 Björn Peters, VTI Active Attention Subject 3 – block 35


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